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Construction method and secant pile construction device

A construction method and construction device technology, applied in excavation, sheet pile walls, foundation structure engineering, etc., can solve problems such as waste of materials, achieve the effects of reducing consumption rate, reducing labor input, and improving construction efficiency

Pending Publication Date: 2020-07-31
CHINA FIRST HIGHWAY ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a construction method and an occlusal pile construction device to solve the technical problem that the plain concrete on both sides needs to be removed in the construction of an occlusal pile, resulting in waste of materials

Method used

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  • Construction method and secant pile construction device
  • Construction method and secant pile construction device
  • Construction method and secant pile construction device

Examples

Experimental program
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Embodiment 1

[0028] Embodiment 1: The present invention also provides a kind of construction method that adopts above-mentioned occlusal pile construction device to carry out construction, and this construction method is used for the deep foundation pit supporting construction of sand pebble bottom narrow hole piece, comprises the following steps:

[0029] Step S1: Under the premise of satisfying the support depth requirements, the drill holes are arranged in the form of interlocking, and the drilling sequence is performed according to the drill one jump one method to form a type of hole;

[0030] Step S2: Place the positioning plate above the first type of hole, and insert the pre-embedded pile core into the first type of hole through the through hole of the positioning plate. The pre-embedded pile core is located between the concrete pile formed by the first type of hole and other concrete piles. The occlusal position, and use the pouring hole to pour concrete into the first type of hole;...

Embodiment 2

[0037] Embodiment 2: A construction method is basically the same as Embodiment 1, and the similarities will not be described again. The difference is that in step S2, the pre-embedded pile core is lifted by a crane, and the verticality is checked with a wire hammer. Make the pre-embedded pile core vertically inserted into a type of hole.

Embodiment 3

[0038] Embodiment 3: a construction method, which is basically the same as Embodiment 2, and the similarities will not be described again. In step S2, before the pre-embedded pile core is inserted into a type of hole, the pre-embedded pile core is painted to reduce friction agent.

[0039] The anti-friction agent is heated with an electric furnace until it is completely melted, and it can be painted when it feels uniform in thickness when stirred with a stirrer. The antifriction material is applied with a thickness of 1-1.5mm, and it is evenly applied to ensure the bonding quality of the antifriction material layer.

[0040] If the pre-buried pile core is coated with anti-friction agent immediately after the surface rust is removed, the surface dust must be wiped off before the subsequent coating application.

[0041] In case of rainy days, the surface of the pre-embedded pile core is wet, the surface should be wiped dry first, keep it dry and then apply the anti-friction age...

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Abstract

The invention provides a construction method and a secant pile construction device, and relates to the technical field of construction. The construction method is used for deep foundation pit supportconstruction in a sandy cobble stratum narrow space. The construction method comprises the following steps that S1, drilling secant form distribution is adopted on the premise of meeting support depthrequirements, and a drilling sequence is applied in an every-other-hole to from first-class holes; and S2, a positioning plate is placed on the upper portions of the first-class holes, and pre-buriedpile cores are inserted into the first-class holes by means of through holes of the positioning plate. The construction method is used for deep foundation pit support construction in the sandy cobblestratum narrow space, and the pre-buried pile cores occupy the secant positions of concrete piles formed by the first-class holes and other concrete piles so that the parts, where the concrete pilesare formed, of the first-class holes do not form the concrete piles, pile bodies do not need to be cut, concrete waste is reduced, the construction progress is accelerated, and the construction efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a construction method and an occlusal pile construction device. Background technique [0002] At present, the construction of bored occlusal piles emphasizes the word "bite", that is, the continuous soil retaining structure with anti-seepage effect formed by the piles being closely arranged and adjacent piles are cut, and the piles are occluded with each other. A kind of foundation pit support structure, the existing construction technology, due to the need for cutting, the arrangement of the piles is plain concrete piles (A piles) and reinforced concrete piles (B piles) at intervals, and A piles are constructed first during construction. Pile B will be constructed later, and pile A will be made of ultra-slow concrete. It is required to complete the construction of pile B before the initial setting of the concrete of pile A, forming a layout in which pile B is the skeleton a...

Claims

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Application Information

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IPC IPC(8): E02D17/04E02D5/22E02D5/34
CPCE02D17/04E02D5/22E02D5/34
Inventor 徐超谢耀文田世奇于祥胤兰欣
Owner CHINA FIRST HIGHWAY ENG