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Cased augered/secant piles

• The cased augered/secant piles method can be utilised in a wide range of cohesive and cohesionless soils with or without the presence of a water-bearing stratum and without bentonite fluid as wall support The use of a casing allows to overpass concrete existing structures and penetrate rocks Get price

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Contiguous Bored Piles and Secant Piles

Contiguous Bored Piles and Secant Piles A Contiguous bored pile wall is an earth retention system formed by installing closely spaced Bored piles with a small gap between adjacent piles In contrast a Secant pile wall is an earth retention system formed by installing overlapping Bored piles Get price

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Secant Piling Walls

Cost Effectiveness Secant piling can be installed to form a 'cut-off' wall which may reduce or eliminate the need for ongoing site dewatering during basement excavation and construction The secant piling can be utilised as the permanent structural wall and may be designed to support building loads Get price

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PILES AS RETAINING STRUCTURES

Piles structures made of piles and pile-like structures are useful structural elements to support deep excavations and cuts in slopes and to retain creeping or sliding slopes not uncommonly in seismic areas Depending on the static system and the dimensions the structural elements transfer forces mainly by shear ("dowel") and /or mainlyGet price

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Secant Piles

Secant pile walls are composed of reinforced interlocking concrete piles cast-in-place to form a wall RECON forms secant pile walls by constructing a series of interlocking and contiguous drilled shafts with primary piles and secondary piles that are made of soft concrete and become interlocked when set Get price

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Design and Construction of Anchored and Strutted Sheet

SYNOPSIS The design and construction of anchored and strutted sheet pile walls in soft clay are reviewed in the paper based on experience gained mainly in Singapore during the last 10 years where mainly strutted sheet pile walls and contiguous bored piles are used Get price

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CONTINUOUS FLIGHT AUGER PILES

Principal or delegated authority evidence of past projects in the construction of CFA piles (and/or secant pile wall construction if applicable) Reference to successful completion of projects with similar pile sizes in similar soil conditions using the proposed equipment and procedures should be Get price

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Pile foundations

Piles may be classified by their basic design function (end-bearing friction or a combination) or by their method of construction (displacement (driven) or replacement (bored)) End-bearing piles develop most of their friction at the toe of the pile bearing on a hard layer Get price

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Secant Walls

Secant pile walls are constructed by forming interconnecting reinforced concrete piles A guide wall is constructed to set out the position of the secant piles which is followed by the installation of the '' piles whilst ensuring enough space is left in between for the 'Male' piles to be constructed Get price

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Bored temporary cased piling

Case Studies Location - Upnor Kent Project Type Berm Construction Piling Works Capping Beam History The slope adjacent to the road some two years prior showed significant signs of instability caused primarily by spoil being discharged in an uncontrolled manner at the head of a steep slope by a resident trying to retain the edge of his Get price

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Bored Pile Retaining Walls

Secant Wall – Hard/Hard Hard/hard wall construction is very similar to a hard/firm wall but in this case the primary piles are constructed in higher strength concrete and may be reinforced Heavy duty rotary piling rigs using tools fitted with specially designed cutting heads are necessary to cut the secondary piles Get price

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Apr 2013 • Page 1 TECH NOTE

Secant Pile Construction Waterproofing Secant pile construction is a technique used to build underground walls without the need to first excavate It is a commonly used method for creating walls for tunnels and for deep U-shaped below grade guideways Secant piles are also suitable for foundation wall construction in denseGet price

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Method Statement for bored pile works_

Method Statement Construction of Large-diameter Bored Piles 1 GENERAL 2 STANDARD AND SPECIFICATIONS 3 SETTING OUT 4 PREDRILLING 5 PILE TOLERANCES 6 BORED PILE CONSTRUCTION 7 SEQUENCE 8 RECORDS 9 TESTING OF PILES 1 GENERAL The method statement refers to the construction of mechanically excavated bored piles Get price

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Earth Retention Shoring System for Excavations

The work specified herein includes the design documentation furnishing and installation of earth retention systems for excavations The earth retention system shall be either singular or multiple stages comprised of soldier piles and laggings sheet pile wall and bracing raker or timber sheet pile wall bracing or secant piling Get price

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Cased Secant Piling (Cased CFA)

The CSP method can be used to construct deep secant or contiguous piled walls depending on the actual ground conditions and water table HOW IT WORKS CSP piles are constructed by drilling hollow stem augers encased within a string of casing to the required depth Get price

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Bored cast

piles Piling systems differ in respect of the techniques used (e g grab rotary drill direct circulation drill) the method used to support the borehole (with or without drill casing dry hydrostatic pressure slurry stabilisation) and method of concreting (poured or in-jected) Pile construction Get price

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Specification for Contiguous Bored Piling

Specification for Contiguous Bored Piling 7 October 1999 SPECIFICATION FOR CONTIGUOUS BORED PILING and this include reinstallation of piles and the design and construction of a modified foundation The Contractor shall carry out the works in accordance with a method statement Get price

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secant pile wall construction method

Method Statement for Building Secant Pile Wall and the Construction of secant pile wall is normally required when the building project is to be erected on soft ground or sandy soil SECANT PILE SHORING Secant pile walls are formed by constructing a diameter piles the construction Get price

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Sheet Pile Retaining Walls Design and Construction in a

Sheet Pile Retaining Walls – Design and Construction in a Brown Fields Environment Amir Holakoo Ranjan Weeraratne and Kugan Kugathasan the platform area with infilling jet grout columns and secant piles to provide wall 8th Australian Small Bridges Conference 2 This method is used where there is insufficientGet price

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Secant Piles

Secant pile walls are also very stiff and are often used when there are sensitive structures behind the wall An advantage of using secant piles for cutoff wall construction is the ability of Schnabel Foundation Company's high torque drill rigs to penetrate hard drilling conditions while simultaneously casing the drill hole Get price

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method statement for bored piling

Bored Piles Production Method by using multiple bored piles as bored pile wall which later can be incorporated into the final building Bored piles can be easily adapted to the various load and soil requirements due to the large variety in diameter and construction techniques Get price

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Bored Piling

Aside from building foundation piles the Bored piling method is also used to form Contiguous and Secant bored pile walls for earth retention A Contiguous bored pile wall is formed by installing closely spaced Bored piles with a small gap (typically 75 to 150 mm) between adjacent piles A SecantGet price

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CAPABILITY STATEMENT

12 BELPILE / CAPABILITY STATEMENT Cockburn Gateway Project Survey Deviation from plan position of 273 surveyed piles 0-10mm 10-20mm 20-30mm 30-40mm 40mm Average deviation 18mm Belpile has been at the forefront of the development of the "Top-Down" system of basement construction in Perth and has successfully completed several smallGet price

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method statement of bored piling using polymers

Work method statement for Secant Pile The detailed method of statement is very similar to the method statement for bored piling works and shall be made available before construction commences on site Secant pile wall formed by the primary and secondary (male) piles by drilling the piles to the specified diameter and required depth Get price

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Everything about sheet

An alternative method of providing joint between two piles is shown below In this method after the piles are driven to the required depth the joint is grouted with cement mortar 1 2 (1 cement 2 sand) The piles are reinforced to avoid formation of cracks due to rough handling or shrinkage stresses Get price

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method statement piling works

method statement piling works SIDExamples of Piling Hazards and Risks The Federation of Piling Examples of Hazards associated with Piling and Diaphragm Walling Works and how these might be managed within the design phase of a site investigation works to take account of the need for measuring near surface soil properties required for Get price

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Pile integrity test

The test works well in concrete or timber foundations that are not excessively slender Usually the method is applied to recently constructed piles that are not yet connected to a structure However this method is also used to test the integrity and to determine the length of piles embedded in structures Get price

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SECANT PILE

A secant pile wall consists of interlocking piles with diameters ranging from 410mm to 1500mm Piles are usually of constant diameter but occasionally primary piles may be of a smaller diameter than secondary piles The secant pile method consists of boring and concreting primary piles at centres slightly less than twice the nominal pile Get price

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Shaft Design and Construction

Secant piles are small-diameter (3 ft) concrete columns drilled side-by-side an effective way to build a watertight shaft As depth increases the drill holes used for construction tend to drift Extra care is needed to maintain verticality with the deeper secant piles Secant pile shafts typically max out at a 70-ft depth although some are Get price

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Construction of Papadia secant pile plastic concrete cut

Construction of Papadia secant pile plastic concrete cut-off formed by secant piles of plastic concrete was constructed in the leioP-Pleistocene fluvio-glacial deposits at the river bed tions and observing a well-defined Method of Statement and Quality Plan The total duration of the C/W construction Get price

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Contiguous Pile Wall as a Deep Excavation Supporting System

Contiguous Pile Wall as a Deep Excavation Supporting System Venkata R GODAVARTHI Dineshbabu MALLAVALLI In-situ pile retaining walls also called column piles are rows of concrete piles either cast-in situ pile method or precast pile method interlocking or secant piles (a) Contiguous Pile Wall (b) Secant Wall Get price

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