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Construction method for reinforcing broken geology around pile

A technology of crushing geology and construction method, applied in soil protection, infrastructure engineering, construction, etc., can solve the problem of pile foundation hole forming process that cannot be guided and so on

Active Publication Date: 2016-12-07
CHINA SHANXI SIJIAN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This treatment method is only used for light objects such as wire towers and poles, and cannot be used as a guide for the hole-forming treatment of pile foundations in large buildings.

Method used

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  • Construction method for reinforcing broken geology around pile
  • Construction method for reinforcing broken geology around pile
  • Construction method for reinforcing broken geology around pile

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Embodiment Construction

[0025] A construction method for strengthening the broken geological environment around the pile. The specific operation method is to determine the position depth of the broken geological layer\zone and the sand layer, and uniformly set grouting parallel to the pile foundation within the range of 1-1.5 meters around the pile foundation. The vertical position of the grouting hole needs to pass through the broken zone of the lower rock layer for 50cm, and then select P.O32.5 ordinary Portland cement to make cement slurry with a water-cement ratio of 0.5 for grouting.

[0026] Such as figure 1 As shown, for a pile foundation with a diameter of 3.0m, a circle of 4.6m is arranged at the plane position with the center of the pile foundation as the center, and 6 grouting holes are arranged in each circle; figure 2 As shown, the pile foundation with a diameter of 1.8m, the plane position is centered on the center of the pile foundation, and 4 grouting holes are arranged in a circle o...

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Abstract

The invention relates to a foundation treatment method, in particular to a construction method for reinforcing a broken geology around a pile, and solves the technical problem of pile foundation reinforcement under special geological conditions. The construction method for reinforcing the broken geology around the pile solidifies soil of a broken rock layer through performing the drilling and grouting operation for the broken geology around a pile foundation beforehand; the grouting selects P. O32.5 general silicate cement to manufacture cement slurry with a water-cement ratio of 0.5; and the grouting reinforcement is performed for a sand inclusion layer and a broken layer. The construction method can improve the hole forming quality and the pile forming quality under the broken geology condition.

Description

technical field [0001] The invention relates to a foundation treatment method, in particular to a construction method for reinforcing broken geological conditions around piles. Background technique [0002] In building construction, before the construction of the building, it is necessary to drive piles as the foundation, and then carry out high-rise construction. A deep foundation composed of piles and a pile cap connected to the top of the pile, or a single pile foundation connected by a column and a pile foundation, referred to as a pile foundation. Pile foundations are widely used in high-rise buildings. Pile foundation construction, after the columnar pile body is made of reinforced concrete, steel, wood, etc., it is driven or pressed into the ground with a pile driving machine until the soil is firm, or the hole is formed first and then poured into a concrete columnar pile body, thereby strengthening The technology of pile cap bearing capacity. The main process of c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/12
CPCE02D3/12E02D2300/004
Inventor 卫芷张文杰韩锦峰王昌威史永恒穆锦峰常彦妮邢六斤王璐弓瑞杰常帅李琳
Owner CHINA SHANXI SIJIAN GRP