Archive for August, 2009

Excavation History and Types

Tamilselvan recently asked:


Excavation process basically involves the removal of any topsoil overload by machine. This material might be examined by metal detector for drift finds but unless the preparation site has stayed untouched since its rejection there is perpetually a layer of current material on the surface of partial archaeological interest. In countryside areas, any features are frequently noticeable beneath the surface as opposed to city areas where there might be thick layers of human deposits and as well the only the highest contexts would be primarily be visible and definable by ways of isolation from few other contexts. A plan for sampling the contexts and other features is formulation that might engage total excavation of each characteristic or only portion.

The growth of excavation methods has moved over the years from a wealth hunting process to one that wants to fully understand the series of human activity on a given site and which site’s relationship with the surroundings in which it is set and further with sites elsewhere.

Its history started with a simple search for wealth and for artifacts that fell into the group of ‘curio’. These curios were the topic of most interest of antiquarians. It was later respected, which digging on a site shattered the proof of earlier people’s lives that it had contained. Once the trinket had been detached from its context, most of the information it detained was lost. It was from this understanding, which antiquarianism started to be replaced by archaeology,a process yet to be completed.

Basic Types of Excavation

There are two basic types of modern archaeological excavation:

1. Research excavation -When time and resources are obtainable to excavate the site fully and at a relaxed pace. These are now approximately completely the preserve of academics or concealed societies who could even muster sufficient volunteer labor and funds. The size of the excavation could as well be determined by the director as it goes on.

2. Development-led excavation - Undertaken by expert archaeologists when the site is endangered by building development. Normally funded by the developer meaning, which time is more of a factor as well as its being paid attention only on areas to be affected by building.





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Monday, August 31st, 2009 Excavation Contractors Sydney No Comments

Keyword Excavator - LSI Keyword Research Software Tool Review

Paul Chartiss recently asked:


Keyword Excavator is a new Latent Semantic Analysis tool from Jos Jongejan. I’d like to share with you some the many exciting features of this powerful software.

The first step in using Keyword Excavator after installation is to log in. Since this software is on your hosting server having a login requirement is a good idea for security purposes.

After that you’re presented with a place to input your keyword phrase and excavate on either Google, Yahoo, MSN live, or using a URL or even copying and pasting the contents of an article. You type in your keyword phrase and then you have an opportunity to select the language and the country typically what I do is select English and the United States as this is my main market. I then click on the button that says, “Dig Me Up Some Keywords!”. After that Keyword Excavator goes to work.

The amount of information you will get back is extremely amazing so give the software time to work its magic. The first thing you will see will be the latent semantic analysis summary which shows your key phrase, the language that you chose, the country that you chose, the search engine that you chose, etc.

The table below that then shows you a variety of different information from multiple search engines and also shows you a large number of narrower searches where you start to get into your 3, 4 and 5 word phrases, the Google advertisers for the key phrase with the actual ads they are right in a small window for you to see.

As we move down we have another incredible table to look at. This particular table shows you the top 20 sites for the key phrase that you chose. The table also show you at a glance such useful information as page rank, whether or not the key words are in the URL, whether the keywords are in the domain name or the keywords are in the title, the word count of the homepage, the key phrase count of the homepage, and the key phrase weight on the home page.

In addition to all this information the very next thing you’ll see is something extremely useful and that is a series of graphs. The first graph shows the Google page rank on the y-axis and the search engine position on the x-axis. The next graph shows Yahoo back links on the y-axis and the search engine rank or position on the x-axis.

This is very interesting information. I was surprised to see many sites without high page rank in the top 10 sites for my chosen key phrase. The next graph shows the page word count in relation to the search engine position this seems very interesting because you may find a data correlation here and any correlation is information you may be able to use to increase your ranking.

The next graph we see the page keyword count on the y-axis in the search engine position on the x-axis. As we move down the page we see page keyword weight on the y-axis and the search engine position on the x-axis. When they said that a picture is worth a thousand words look at these graphs and you can see at a glance what may or may not make a difference in your rankings. Just being able to see what the top sites all have in common is extremely valuable. There are also additional graphs that provide an even greater level of detail.





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Saturday, August 29th, 2009 Excavation Contractors Sydney No Comments

Types of Diggers Available in Construction

Robert Tate recently asked:


The type of digger that you will need for a construction project will depend on various factors. Usually a digger is required when the amount of man-hours required to dig the necessary hole is excessive. Renting or buying a digger may well at times save you money and do the job more effectively. The size of digger you need will clearly be dependent on the nature of the job and equally importantly what size access to the site is available and how smooth or not the land is.

Diggers and mini diggers are often described in a more technical way as excavators. Each size of excavator then has its own categories and sub-categories, as there are constantly new developments and innovations in response to the wide range of different jobs that diggers are required for.

Compact excavators or mini diggers are generally between two and six tonnes in weight and are more powerful than is at first obvious. This is especially true of the more modern versions, which come with advanced hydraulic systems to increase their strength. Another of their valuable features is their adaptability and mobility in comparison to their larger counterparts. Most models of mini digger excavator can rotate around 360 degrees giving maximum freedom to the operator and often saving time and money, as many jobs will be quicker due to not having to constantly reposition the excavator.

The size and mobility of mini diggers also means they are ideal for smaller sites, perhaps with limited access and where you may have to work in a tight space. Mini diggers are ideal for jobs such as digging ditches, setting up pools or ponds, trenching for pipes and cables, digging foundations for extensions and general landscaping jobs.

There are many good reasons for picking a mini digger over a larger one when practicable such as: lower purchase or renting costs, lower maintenance costs, easier controls and simpler attachments of accessories. Highly regarded brand names include JCB, Komatsu, Caterpillar, Hitachi, Volvo and Kubota.

Many of the larger categories of excavator perform the same roles as their more compact siblings but on larger scale and where the access is unbridled. There are though some specialised larger diggers such as those known as long reach excavators. As the name suggests these vehicles have extra long arms allowing them to fulfil tasks such as demolition or reaching to the higher floors of tall building sites. Old-style demolition with huge balls on the end of cables can clearly be somewhat haphazard in terms of how the building actually comes down. A long reach excavator has much more finesse as it can reach to the upper floors of buildings and dismantle them in a safer and more refined way.

Other larger excavators are used for work such as road building, road maintenance and larger construction jobs. They are often equipped with a hammer, a shovel and other accessories. They often have names such as dredger excavators, trench diggers and foundation excavators, dependant on the primary intention of the design.

The monsters in the field are often known as dragline excavators and bucket wheel excavators and are often used for larger construction projects, civil engineering and mining. The dragline excavator operates a large bucket by a system of ropes, cables and chains. Bucket wheel excavators consist of a large wheel with bucket and scoop attachments designed to collect earth and deliver it usually to some kind of conveyor belt or grader. Some of these machines weigh as much as 13,000 tonnes and can take as long as five years to make. Digger designs are always evolving so check out the latest developments if you are considering buying or renting one.





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Saturday, August 29th, 2009 Excavation Contractors Sydney No Comments

Filming in Israel - Qumran and the Dead Sea Scrolls

Sharon Schaveet recently asked:


Filming in Israel is a dream come true for crews filming historical, biblical and nature documentaries. Biblical Productions, which has been providing Production Services in Israel for many years, regularly takes crews to the most interesting and intriguing locations around the country. One of the most popular and historically most important filming locations is Qumran, where in 1947 a solitary Bedouin shepherd stumbled into the greatest archaeological find of the century – the Dead Sea Scrolls.

The wilderness of Judea, mile after mile of perched rock and barren hillside, was home to Bedouin shepherds and a connecting pathway for camel caravans. For thousands of years, the Judean desert has held secrets buried in its sands. Here, at the lowest point on earth near the Dead Sea, in the intense heat of the barren Judean desert, David fled from King Saul seeking refuge in the mountain caves, John the Baptist lived on locusts and wild honey, and Jesus rejected the temptations of the Devil. It was at the Northwestern point of the Dead Sea, where one afternoon in 1947 a small shepherd boy climbed into the caves of Qumran and discovered the scrolls.

Blind to the value of the rolls of old and rotting leather, the shepherd sold the scrolls for the low price of 7 Palestinian pounds. Yet the dealer realized their value quickly and sent the Bedouins back to the desert to look for more scrolls. On November 23rd 1947, Elazar Sukenik, Professor of Archaeology at the Hebrew University in Jerusalem received an urgent phone call from a friend, an Armenian antique dealer from the Old City. They arranged to meet the next morning. By afternoon, three scrolls were wrapped inconspicuously in newspaper on Sukenik’s lap.

In the following months, Sukenik and a small team at the Hebrew University began the delicate task of unrolling scrolls stuck together by 20 centuries of decomposition. They identified the almost complete manuscript of the Book of Isaiah, which remains the oldest biblical text ever found, almost identical to the Bible we read today.

Today, crews filming in Israel can see these scrolls exhibited in the Israel Museum. Film permits in Israel can be acquired by Biblical Productions as well as interviews with experts about the discovery and scientific examinations of the scrolls. Many crews filming in Israel choose to film in Qumran as well as in the Israel Museum, if their script explores the Dead Sea scrolls in depth. 

Meanwhile scholars at the American School of Oriental Research in East-Jerusalem (ASOR) opened and photographed the scrolls. A leading US Biblical scholar at Johns Hopkins University, Professor William F. Albright, declared that the scrolls were the work of the Essenes, a mysterious sect, and without hesitation announced that this was the most important archaeological find of the century. News of the discovery sent Bedouins, together with archaeologists, racing to excavate the area. In cave 4 alone, not far from the original cave, dug out of a sheer face of an escarpment, Bedouins found 15,000 fragments from about 500 scrolls.

During the spring of 1953, the archeologist, Father De Vaux, Director of the Ecole Biblique in East-Jerusalem, came to carry out the first extended excavation – a dig that would occupy him and his team for the next four springs and lead him to a view of an Essene life that would be argued about by scholars for decades. The two-month dig unearthed the remains of considerable construction; and it soon became clear that this was a well-established settlement.

The historical site of Qumran is one of the most popular film locations in Israel for crews. Having become a well-known National Park, Qumran offers a solid wood path that leads through the excavated ruins, as well as a film and a little museum. The caves themselves are currently not accessible for the public, however, filmmakers can get great shots from an empty riverbed next to the caves, as well as from up above at the park. The white soft hills that hid the Dead Sea Scrolls for so long form a nice contrast to the sharp mountains of the Judean desert in the background. More caves from ancient times are accessible at the back of the sites; however, caution is advised when climbing over the rocky paths with camera and sound equipment. 





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Wednesday, August 26th, 2009 Excavation Contractors Sydney No Comments

19thc Goldmine Excavations in New Zealand Unearth Victorian Era Treasures

Phil Davies recently asked:


San Francisco, California - November 27th, 2007 - The Martha Goldmine at Waihi in the North Island of New Zealand was a major producer of gold and silver between 1888 when mining commenced and 1952 when the mine closed. The Pumphouse structure was classified as a building of national significance by the New Zealand Historic Places Trust in the 1970s.

Due to land instability, the Cornish Pumphouse was in danger of

catastrophic collapse and it was leaning 2 feet out of perpendicular and increasing. The decision was taken in late 2005 to shift the Pumphouse to a safe location by cutting off the Pumphouse some 4 meters (13ft) below the ground surface.Using concrete slider beams capped with steel and stainless steel sheeting, the 1,800 tons was suspended using hydraulic flat jacks sitting on Teflon pads with lots of lubricant, then pulled with horizontal hydraulic rams. The shift involved some 30 meter (approx. 30 yards) southward move then a 300 meter (approx. 300 yards) westward trip to the new site.

As a condition of the New Zealand Historic Places Trust archaeological

consent for the relocation, archaeological monitoring, investigating and recording was undertaken along the south side of the hill. Starting in January 2006, a series of archaeological investigations have taken place associated with the relocation of the Cornish Pumphouse. These

investigations that also included excavations around the Pumphouse, were performed by consultant archaeologist Ray Hooker of Arcsearch

Consultancy Tauranga, New Zealand, assisted by local man Ian Keys – see: http://www.marthamine.co.nz/14_11_06.htm. A varied array of old mining related gear, both tools and machinery pieces were recovered. A trash pit from this site yielded almost exclusively spirits and painkiller bottles, one still full of Aspros!

Cleaning, sorting and cataloguing of the collection of material

recovered took many weeks. Nearly 5,200 pieces of domestic material have been inventoried. These include dozens of tin match boxes dating from 1895 to World War I, a silver sovereign keeper, used to store half and full sovereigns (unfortunately empty), pocket watches, metal tins of various sorts, ornaments and a printers negative plate for a 1900

calendar, to name some of the metal material recovered. A whole range of bottles from late 19th century to the 1940s includes some intact early bottles. Bottle manufacturers included British, Australian, American and New Zealand makers.

However, the largest collection of material consists of ceramics, mainly tableware. Some were intact or almost whole, but the vast majority was in fragments. Many had identifying makers’ marks and classifying these items proved time consuming and at times frustrating as some 50 manufacturers have been identified so far, mainly with the help of Marks4Antiques.com

(www.Marks4Antiques.com).

“In addition to Antiques professionals like Appraisers, Auctioneers or

Antiques Dealers, we were surprised to know that many of our members

come from the Academic arena or are professional Archeologists,” says

Lisa Marion of Marks4Antiques.com. “For example, another member is

exclusively involved in Marine Archeology and has a team of divers that

recover ship wrecks! Simply fascinating.”

The oldest dated item near the Pumphouse comprises all the pieces of an

earthenware plate dating between 1846 – 1854, when the Staffordshire pottery of P. Holdcroft closed. All the pieces of a Grindley Globe Pottery plate with a Waihi Hotel monogram on it, plus many other fragments, were also located. Of particular note were pieces of porcelain crockery dating to about 1912, with a view looking east of Waihi’s main street, made by the Victoria Pottery, Austria (Schmidt & Co). Fortunately all the pieces of one side plate were recovered and several other items have been partially reconstructed. The Set appears to have comprised cups & saucers and side plates.

Although the majority of the ceramics are earthenware, some fine

porcelain china has also been recovered including Royal Doulton vases.

Most of the china collection is dominated by British and other European

manufacturers; yet, several fine makers from Japan/Nippon were also

identified, as well as items from China and elsewhere in Asia. The majority of pieces for which a period attribution was possible, date ca 1890s – 1930s, though a good number of pre 1890 pieces have also been recovered.

The vast array of material recovered over the past 10 months from Martha Hill is currently in the final stages of analysis. This will allow some insights into domestic and mining matters from early last century.

Accredited media interested in discussing this topic in more detail are

encouraged to schedule an interview by sending their request to

Contact@Marks4Antiques.com or visit their Web site at Marks4Antique.com

About Marks4Antiques.com

Marks4Antiques.com was created to help Collectors and Dealers to

research Antiques & Collectibles. The successful launch of

Marks4Ceramics.com in 2004 was quickly followed by Marks4Silver.com in

2006 and then Values4Antiques.com this year. All websites were designed

for use online in order to accommodate the growing number of mobile

Antiques and Collectibles Dealers that roam the country to different

Auctions or Shows and those that sell or buy online (eBay etc).

Subscribing to any of the websites provides easy and fast pictorial

methods of identifying and self-appraising items. An active member can

also contact the experts of each website for personal assistance when a

mark is not already in the database at no additional cost. To facilitate an unbiased Antiques Research & Evaluation environment, no Trade (buying or selling) of items is allowed through these sites as they are totally dedicated to Research. All staff are avid Collectors, Appraisers and professional Dealers. The company is owned and operated in the State of California, USA.





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Monday, August 24th, 2009 Excavation Contractors Sydney No Comments

Benefits on Buying Used Equipment

Inés Sambeat recently asked:




I would like to make known the benefits that used construction and heavy equipment can bring to an enterprise or a particular person.

There’s no question the economy is a cause for concern. This fact gets more important when talking about smaller companies which do not have as many resources as medium or large enterprises do. 

We all agree that buying a high quality construction equipment is better when we disburse a low initial price and operating costs. This is what happens when buying a second hand machine instead of a brand new one.

Used construction equipment offers you the same opportunities than a new one plus it also saves you a lot of money in the long run.

Internet is a safe way to find consistent wholesale construction equipment suppliers.You are sure to get the best possible deal online with immediate comparisons on the features, prices and other aspects of the very best brands.

Nowadays, construction industries are finding more financial beneficits to their businesses investing in used construction equipment rather than buying them brand new.

For instance, a used excavator can cost you less than half of what a new one would cost and be available to you at any time. Buying a used tractor or used excavator by searching online is really the easiest and the best thing to do.

Moreover, when it comes to making a saving, buying a used tractor or excavator is actually a huge saving on your resources rather than to hire it and make payments all the time or buying it new.

MinuteMachine.com has one of the largest selections of new and used construction equipment throughout for sale on its website. Offering a wide line machinery from dump trucks to backhoe loaders from all the major manufacturers.

There are many good second hand equipments distributing throughout the world, through auctions, buying and selling, ensuring all used machinery, parts and accessories are cleaned and thoroughly inspected prior to every sale.

Buying a used tractor or a used Excavator is no small addition to your business, thus, it is important that you take time and effort to make an informed decision.

Why put tens of thousands more into brand new heavy trucks when there are quality second hand trucks for much less? We must be aware of the difficult situation we are now living and try to take the best chance for our benefit.                                        

Saving on used heavy trucks can make all the difference in the success of your business!





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Sunday, August 23rd, 2009 Excavation Contractors Sydney No Comments

Heavy Equipment Operator Training Overview

Bradbury recently asked:


Heavy equipment operator training is an essential educational prerequisite for any potential candidate looking to enter a stable and rewarding career in operating heavy equipment. With a rise in construction projects around the world, heavy equipment operators are in demand. The Department of Labor states that the career outlook for heavy equipment operating is on the rise and very good. Heavy equipment operators require specialized training in order to gain the skills and knowledge necessary to obtain and keep a job utilizing heavy equipment. Although experience will be accumulated with on-the-job hours, it is absolutely necessary that a potential operator receive proper training prior to entering the field.

Types of Heavy Equipment

Heavy equipment is the tool vital to nearly every business or individual in the construction industry. Heavy equipment operator training is essential for the proper and effective use of equipment such as backhoes, scrapers, excavators, motor graters, loaders, dump trucks, bulldozers, and other heavy vehicles.

Overview of Training Topics Covered

In-classroom studies: important safety procedures, engineering, math, setup, maintenance and other fundamental topics

Field Training: hands-on equipment training with emphasis on operations in a variety of situations and environments such as varying types of soil, slope, terrain, and climate conditions

Stats of Heavy Equipment Operator Trainees

Length of heavy equipment operator training programs: 1.5 – 6+ months

Average starting pay for a certified heavy equipment operator: $13.00 - $20.00 per hour

If you are already in the construction industry, or are looking to start a career in the industry, heavy equipment operating may be a great decision for you. To begin your career in heavy equipment operating, training is essential. The potential candidate should plan accordingly. Many government grants and scholarships are available to assist in obtaining proper certification and training.





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Sunday, August 23rd, 2009 Excavation Contractors Sydney No Comments

contract types

wangdi9605 recently asked:


CONTRACT TYPES

In addition to choosing a delivery method for a project, the owner must decide what type of contract to use. A contract is simply an agreement between two or more people in which a person agrees to perform or provide a specific task or service to another person in exchange for something in return. The contract type, like the delivery method, is an important choice for the owner because it addresses project risk. Here we discuss three basic types for contracts: single fixed price, unit price, and cost plus a fee.

Single Fixed Price

In a single fixed price contract, also called a lump sum, the contractor agrees to provide a specified amount of work for a specific sum. Both parties try to fix the conditions of the project as precisely as possible because once the contract is signed, both parties must live with its term.

The advantage of this contracting method is that the owner knows before the work begins what the final cost of the project will be. It is usually used with the traditional delivery method. The designer prepares a complete set of contract documents, which the owner then either bids out or negotiates with a contractor. A final contract amount is agreed to, and the work begins.

The risk for the owner is that the contract is only as good as the accuracy of the contract documents. If the scope of the project changes or if errors exist in the documentation, the contract will need to be renegotiated, possibly exposing the owner to increased costs. Moreover, negotiating or bidding a complete set of contract documents takes time and prevents construction from beginning until the design work is complete, a problem endemic to the traditional method of delivery. This eliminates the possibility of a fast-tracked project.

In sum, this contracting method combined with a traditional delivery method allows the owner to define and commit to an agreed-upon project description and dollar amount before the work begins. For owners who want to minimize risk on a project that can be clearly defined( that is , has few unforeseen conditions), this type of contracting method is a good fit. The owner must understand that the process will take longer and that changes caused by mistakes, unknowns, or changes in owner requirements will jeopardize the agreement.

Unit Price Contract

In a unit price contract the owner and the contractor agree on the price that will be charged per unit for the major elements of the project (see Figure 4.9). The owner/designer typically provides estimated quantities for the project, asking contractors to bid on the job by figuring unit prices for these items and calculating a final price. Contractor overhead, profit, and other project expenses must be included within the unit prices. The owner then compares the final price and selects the low bidder.

The advantage of this contracting method is that in many projects (for example, heavy engineering projects) it is difficult to accurately quantify the work necessary. In excavation work it is often difficult to figure the actual amount of rock versus earth that must be excavated. To eliminate risk to both the owner and the bidders, the designers estimate quantities and then ask the bidders to provide a unit price for each type of excavation. Payments will be based on multiplying the actual quantities excavated by the unit price.

This contracting method provides the owner with a competitive bid situation that allows for a fair price for the work. It also eliminates the risk of negotiating a fixed price but then having to renegotiate because of unexpected site conditions. With this contracting method, work can begin before the design is complete, thus speeding up the project.

Estimated Bidder 1 Bidder 2

Work Items Unit Quantity Unit Price Bid Amount Unit Price Bid Amount

Soil excavation Cubic yard 10,000 5.50 $55,000 2.00 $20,000

Rock excavation Cubic yard 3,000 25.00 $75,000 25.00 $75,000

6″ pipe Linear foot 600 17.00 $10,200 18.00 $10,800

Crushed stone fill Cubic yard 4,000 21.00 $84,000 20.00 $80,000

Fill material Cubic yard 6,000 14.00 $84,000 20.00 $120,000

Topsoil 4″ deep Square yard 400 5.00 $2,000 6.00 $2,400

Total $310,200   $308,200

Bidder 2 wins the job with the $308,200 total price

Figure 4.9 unit price example

However, if actual quantities are significantly different from estimated quantities, the owner’s financial commitment may be greater than planned. Mistaken quantities also expose the owner to an unbalanced bid, increasing the project’s costs (see Figure 4.10). Significantly unbalanced bids border on being unethical and in some cases can be rejected, or the unbalanced work items can be deleted by a change order.

With a unit price contract, actual quantities must be measured in the field, requiring the owner’s presence on the site to work with the contractors. Delivery tickets and other invoices must be checked and validated. Final contract price is not known until the last item of work is measured and invoiced by the contractor.

  Estimated Quantity Bid price Actual quantity Amount Paid

Soil excavation 10,000 $20,000 8,000 $16,000

Rock excavation 3,000 $75,000 3,000 $75,000

6″ pipe 600 $10,800 600 $10,800

Crushed stone fill 4,000 $80,000 4,000 $80,000

Fill material 6,000 $120,000 7,000 $140,000

Topsoil 4″ deep 400 $24,000 400 $24,000

Total   $308,200   $324,000

Assume Bidder 2, in Figure4.9, knew that the soil excavation quantity provided was high and the fill material quantity provided was low. By providing a low unit price for soil excavation and a high unit price for fill material, Bidder 2 earns an additional $16,000.

Figure 4.10 —–Unbalanced bid (Bidder 2)

In sum, heavy engineering projects such as earth dams, dredging operations, and underground utility work are often accomplished with a unit price contract since the quality of the work can be defined but the actual quantities are difficult to determine in advance. The owner risks not knowing the actual price until the work nears completion, but this disadvantage can be minimized by good design support. work nears completion, but this disadvantage can be minimized by good design support. For example, good subsurface exploratory work can help predict actual quantities in advance. An owner presence in the field is necessary to verify quantities and authorize payments. However, with a good estimate of actual quantities and with adequate funding, work can begin before final design is complete, thus saving project time.

Cost plus a Fee

In a cost plus a fee contract arrangement(also called a reimbursable or a time and materials contract), the contractor (and usually the designer) is reimbursed by the owner for his or her work costs and receives an additional agree-upon fee or a fee that is a percentage of costs. It is important for the owner to spell out clearly in advance what costs will be reimbursed and which costs will be covered by the fee.

This contract makes sense when the scope of the project is difficult to define or when it is important to fast-track the project. The contractor can start work without a clearly defined project scope since all costs will be reimbursed and a profit guaranteed. This type of contract also allows the contractor, designer, and owner to work collaboratively early in the design/build process, encouraging value engineering and good estimating and scheduling support.

A variation of this type of contract is called a guaranteed maximum price (GMP). Here the contractor is reimbursed at cost with an agreed-upon fee up to the GMP (essentially a cap).After this point the contractor is responsible for any additional costs. The contract commonly includes an incentive clause, which specifies that the contractor will receive additional profit for bringing the project in under the GMP.





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Saturday, August 22nd, 2009 Excavation Contractors Sydney No Comments

Tips for Saving Money When Excavating for Inground Pools

Karl Eppstenson recently asked:


There is just no getting around it and that is that inground pools require that a big hole be dug. Also, of all the home home improvement services that you can procure by the hour, excavating with heavy equipment is easily, by far the most expensive. However; there are a  few things that you can do to shave some money off of your final bill and make your job go smoothly.

Dirt Has a Value

Ask the person who is going to be doing your digging if he is going to charge you a fee for hauling and dumping the dirt that he is going to dig. More often then not he will, because thats the norm. However; believe it or not savvy excavators often have a list of property owners that are looking for free fill dirt and that is where he is most likely going to take it. Even worse, he may even have a buyer for the dirt he is digging, so do your best to negotiate this added charge off your tab.

Its Your Dirt

Look in the paper for ads for “free fill dirt wanted”. Call them, because often times they will pay to have the dirt hauled over to their place. Also, if there is a home being built in your area that is on a hill, you may even be able to get them to buy your dirt from you to extend their lot out on the backside. Remember, that it is your dirt to do as you will with, unless you make the decision to forfeit it to the person doing the excavating.

Rent Your Own Digging Equipment

Check the price on renting your own backhoe and dump truck from your local rental yard. It will probably be somewhere in the area of $25 per hour for the tractor and the truck will have a daily fee, plus  your mileage. While this may seem like a lot at first, it is nothing compared to the $150 per hour a professional excavator will charge you for his services.





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Saturday, August 22nd, 2009 Excavation Contractors Sydney No Comments

Everything you Need to Know About Excavators

Phil Nichol recently asked:


Excavators are construction equipment with the ability to move about on several types of terrain and move in 360 degrees. Excavators use a hydraulic system to lift things, scoop up dirt, and also dig. Most ofthe time excavators are found on mining sites, demolition, or digging trenches. The size of this equipment varies from mini excavators to the size of a mining excavator. Choosing which excavator will work for your construction company is important. Below are a few tips in choosing an excavator.

Terrain: It is important to know the type of terrain you will beworking with. For instance if you live in a rocky area it is difficult to

get a larger excavator to some construction sites where as if you willwork in a clearing you are probably going to be able to use the larger excavators if needed. The type of dirt you will work in is important.It is very easy to get an excavator stuck in mud when it ways a couple of tons.

Transportation: Excavators require trailers to transport them from jobsite to job site. The larger the machine the larger the trailer. In

fact you may need to have a wide load trailer to transport theequipment. Keep in mind that unless the job sites are close most excavators do not go over 20 miles an hour and it will take hours to transport themwithout a trailer. This can be a real concern for fuel and transportation costs.

Size: Mini excavators work really well for those sites you can’t get alarge machine into and those that do not require a large hole or much lifting. Mini excavators are often best used for landscaping orfoundations. The larger excavators that can be used as cranes, diggers, or in demolition are more appropriate for trenches and mining.





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Friday, August 21st, 2009 Excavation Contractors Sydney No Comments