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Construction method of bored pile

A technology of bored piles and construction methods, which is applied to drill bits, sheet pile walls, earthwork drilling, etc., can solve problems such as difficulty, and achieve the effects of reducing the amount of slurry, safe hole walls, and simple processing.

Active Publication Date: 2021-09-28
湖北省路桥集团有限公司
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  • Abstract
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Problems solved by technology

When the pile is constructed at a water depth of more than 20m and at a high water level, the bedrock is partially composed of cataclysmic rock, its weathered layer, and structural breccia. It is very difficult to construct under such complex conditions. In order to ensure the quality of the hole, it is difficult to use traditional drilling technology and drilling equipment.

Method used

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  • Construction method of bored pile
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Embodiment Construction

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc. indicate orientation or positional relationship, and are only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the components or elements referred to must have a particular orientation, be constructed and operate ...

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Abstract

The invention discloses a construction method for bored piles, and relates to the technical field of civil engineering. The present invention comprises the following steps: step 1: construction preparation; step 2: stake out; step 3: bury casing; step 4: mud preparation and storage; step 5: drilling platform construction; step 6: drill bit selection and Drilling tool configuration; Step 7: Drilling; Step 8: Hole inspection; Step 9: Cleaning the hole once; Step 10: Reinforcement cage hanging and positioning construction; Step 11: Secondary hole cleaning; Step 12: Water injection Lower the concrete. The present invention adopts the large-diameter super-long bored pile and its construction method, which can effectively solve the difficulty of drilling the bored pile once in complex working conditions, the holes are easy to be inclined, the verticality is difficult to guarantee, the covering layer is thick, and it is easy to leak. It has good technical, economic and social benefits.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to a large-diameter super-long bored pile and a construction method, which are suitable for the construction of large-diameter super-long bored piles. Background technique [0002] During the construction of bored piles, construction accidents such as hole collapse, pipe blockage, steel cage floating, and pipe breakage often occur, which are mainly caused by the continuous and complex process and concealed construction during underwater concrete pouring. of. If the pile is located in rapid waters or on an inclined rock surface, the sinking and stability of the steel pipe pile on the drilling platform are difficult problems, and the precise positioning of the steel casing is even more difficult. Improper operation will inevitably cause great engineering safety hazards and economic loss. [0003] When large-diameter and super-long bored piles are drilled under ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/38E21B15/00E21B21/01E21B10/00
CPCE02D5/38E02D2300/0023E02D2300/0029E21B10/00E21B15/00E21B21/01
Inventor 旷新辉秦海涛李凡谢东升何志红
Owner 湖北省路桥集团有限公司
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