Preview

Bore Holes

Satisfactory Essays
Open Document
Open Document
308 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Bore Holes
Construction practice
Assignment 1
For this project we have decided to use bore piles as a foundation. When using bore piles firstly the hole has to be drilled to sufficient design depth, in accordance with plans, using a temporary casing and auger that are situated on a Kelly bar. The temporary casing is installed to the necessary depth, this supports the pile bore through unstable soils. Pile bore extended generally using augers or a digging bucket. Support fluid (benonite) will be added if soils are loose and are generally incohesive at the design depth. Once the design depth has been reached the reinforcement cage is put in place in the hole. The concrete is then placed into the bore using a tremie pipe. As the pile is concreted to the required depth, the casing is then taken out so that it can be used again.
The support fluid, benonite, which is the name given to a certain range of clays, they swell up and turn into a gel type substance when it comes into contact with water. It is perfect for when the piles are in unstable ground.
Advantages of Bore piling * No risk of ground upheaval * Adjacent soil doesn’t get disturbed * In a lot of cases bored piles offer higher capacity with potentially better economic value than that of driven piles * Because there are no vibrations existing piles and structures aren’t affected * A lot less noise pollution than driven piles * There is no need for large excavations * They can be drilled up to 50m in depth
Disadvantages of Bore piling * A specialist must be called in to carry out the work * Risk of “necking” the ground * When a pile is completed at least 24 hours must be allowed before any more piles can be placed in the surrounding area * Enlarged ends cannot be formed in incohesive

You May Also Find These Documents Helpful

  • Satisfactory Essays

    There are many considerations taking into account before and during excavation e.g. soil classification, equipment needed, weather, sloping and benching, also protective systems such as shoring, etc. Various tools and equipment are used for excavation e.g. Pick axe, Jack Hammer and Shovel as manual hand tool, etc. In the other hand, different size and capacity equipment are deployed in site e.g. Backacter, trenching machine, Multi-purpose Excavators, Dumpers, Dozers. In most cases, excavation creates dust of which affects the workers and equipment operators.…

    • 456 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Soil Safety Trench Quiz

    • 574 Words
    • 3 Pages

    a. A narrow excavation (in relation to its length) made below the surface of the ground. In general, the depth is greater than the width, but the width of a trench (measured at the bottom) is not greater than 15 feet (4.6 m). If forms or other structures are installed or constructed in an excavation so as to reduce the dimension measured from the forms or structure to the side of the excavation to 15 feet (4.6 m) or less (measured at the bottom of the excavation), the excavation is also considered to be a trench.…

    • 574 Words
    • 3 Pages
    Good Essays
  • Good Essays

    503 Regulations

    • 628 Words
    • 3 Pages

    Sludge. When biosolids are applied to land to fertilize the soil for crops and vegetation…

    • 628 Words
    • 3 Pages
    Good Essays
  • Better Essays

    Soil is a non-homogenous blend of many materials. There are many factors that need to be considered when digging trenches in soil. To analyze the stability of unsupported trenches, the method selected will depend on the critical nature of the project, economics, and the amount of time available for design. For shallow utility line excavations, where time and economics are at a premium, a rapid technique for evaluating the critical depth and the maximum safe slope is required. The maximum safe slope is identified as the "angle of repose." The use of stability charts or tables coupled with a few simple equations is the most efficient approach.…

    • 1021 Words
    • 5 Pages
    Better Essays
  • Better Essays

    o In-Ground hoists require a pit to be dug "in-ground" where the piston is installed.…

    • 3051 Words
    • 24 Pages
    Better Essays
  • Good Essays

    In order to use CAD effectively as a design tool, the designer must have the skills necessary to create, edit, and manipulate a 3D model of a part in order to create a realistic representation of an imagined object. In this activity you will build on the CAD skills that you learned in Activity 5.2b Introduction to CAD Skills. You will learn about and use additional tools and features available in most CAD programs and apply your new CAD skills to the creation of more complex parts that will be used in later activities (as components in the assembly of parts) to create complete products (including a complete Automoblox vehicle and a Button Maker machine).…

    • 2045 Words
    • 8 Pages
    Good Essays
  • Good Essays

    Task 1 And 3 Combined

    • 893 Words
    • 3 Pages

    Task 1 + 3 – Describe and compare fundamental techniques, processes, plant and materials used in groundworks, foundations and substructures.…

    • 893 Words
    • 3 Pages
    Good Essays
  • Good Essays

    holes

    • 637 Words
    • 3 Pages

    Stanley gets hit by a pair of sneakers and the police found him. Stanley found a gold empty tube, which turns out to be the lipstick that belonged to Kate Barlow. Stanley begins a friendship with Zero. He teaches him how to read. Zero ran away from camp after being insulted by the camp leader and Mr. Sir. Stanley and Zero find a case, which is the lost treasure of Kate Barlow.…

    • 637 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    it you fix it to a foundation of 3 to 5 feet deep and up to 4 to 10 feet…

    • 110 Words
    • 1 Page
    Satisfactory Essays
  • Powerful Essays

    HLM HLM CONSULTANTS LTD HLM File No.: ARBE3100_A1_2014 April 2014 Basement Construction Prepared for: DreamHome Furniture Group ARBE3100 – Construction Technology 3 The University of Newcastle Callaghan NSW 2308 Prepared by: HLM Consultants Ltd HLM Basement Construction ARBE3100 – Construction Technology 3 Assignment 1 CONTENTS EXECUTIVE SUMMARY ................................................................................................................…

    • 4487 Words
    • 44 Pages
    Powerful Essays
  • Good Essays

    Easement and Review Quiz

    • 391 Words
    • 2 Pages

    (d) to be valid, a Notice of Completion must be recorded within 10 days after the completion of construction…

    • 391 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Holes

    • 555 Words
    • 3 Pages

    In the beginning of the novel Holes, by Louis Sachar, Stanley Yelnats is convicted of stealing a pair of sneakers that were supposed to be auctioned to supply a orphanage with money. He didn't deliberately steal the sneakers they hit him in the head after Hector Zeroni stole them and saw the police so he threw them over the bridge. Later in the novel Stanley meets Hector and tells him why he is there and Hector describes what they look like. Stanley was convicted due to lack of evidence and Hector later admits to stealing them.…

    • 555 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Curled Metal

    • 1589 Words
    • 7 Pages

    2) For those benefits that you can quantify, calculate the differentiation value of a pile pad. You should get a different number for Kendrick and Corey Construction.…

    • 1589 Words
    • 7 Pages
    Powerful Essays
  • Satisfactory Essays

    Deep Holes

    • 411 Words
    • 2 Pages

    Of course they don’t react any good, a member of their family has practically abandoned them. Even Savanna who I mentioned earlier, doesn’t know him that well since he left when she was nine. But as soon as she saw him on the news, she freaked out and called the mother, Sally.…

    • 411 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    The size and weight of tower cranes makes balancing of the crane very important. The central mast of the crane is anchored to a concrete base at the construction site with anchor bolts specially designed to take up the stresses and loads of such a huge machine. This concrete foundation HZS150 Batching Plant,…

    • 495 Words
    • 2 Pages
    Good Essays