Foundation processing method

A foundation treatment and ground surface technology, which is applied in the direction of foundation structure engineering, soil protection, sheet pile walls, etc., can solve the problems of large subsidence of the underlying layer after construction, poor reinforcement effect of the underlying layer, and limited reinforcement depth. Settlement after construction, accelerate the development of settlement, and satisfy the effect of normal use function

Inactive Publication Date: 2007-08-29
陈俊生
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Problems solved by technology

[0003] The purpose of the present invention is to provide an improved foundation treatment method to solve the problems of limited effective reinforcement depth, poor reinforcement effect of the underlying layer, large post-construction settlement of the underlying layer

Method used

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  • Foundation processing method

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Embodiment Construction

[0021] Referring to Figure 1, this foundation treatment method has the following construction steps:

[0022] Step 1: According to the cross-sectional size, spacing, depth, and layout required by the design, construct vertical reinforcements 5 in the reinforcement area matrix 2 in the reinforcement area 7 from the surface to the ground. The above-mentioned vertical reinforcing body 5 can be a stirring pile, a CFG pile, a concrete pile, a sparse pile, a micro pile, a lime pile, a lime soil pile, a long and short pile, a cap pile, an enlarged head pile, a variable section pile, or a combination pile.

[0023] Step 2, after constructing at least one vertical reinforcement 5, according to the cross-sectional size, spacing, length, and arrangement required by the design, in the middle area between the vertical reinforcement 5 and another vertical reinforcement, From the ground surface 9, pass through the reinforcement zone matrix 2 in the reinforcement zone, the substratum matrix 6...

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Abstract

The invention is a foundation processing method, comprising the steps of: 1. constructing vertical reinforcer in reinforced region basal body in the reinforced region from ground surface to underground; 2. after having constructed at least one vertical reinforcer, in the middle region between two vertical reinforcers, constructing a vertical drainage well which runs in order through the reinforced region basal body, and underlying layer basal body in the underlying layer from the ground surface; 3. when all or part of the vertical reinforcers and vertical drainage wells are finished, laying a drainage cushion on the ground surface on the reinforced region; horizontal drainage cushion and the vertical drainage wells are vertically and horizontally interconnected to compose a drainage system. And it raises the maximum valid reinforcing depth of the commonly-used composite foundation from generally less than 20 m to 30-40 m.

Description

(1) Technical field [0001] The invention relates to a processing method for a pile composite foundation, in particular to a processing method for a deep and thick soft soil foundation. (two), background technology [0002] At present, the commonly used pile composite foundation reinforcement area is composed of two parts, the vertical reinforcement body and the matrix of the reinforcement area (natural foundation soil or improved natural foundation soil), and the vertical reinforcement mainly bears the load, Reduce the load pressure of the matrix and improve the overall stability of the foundation. However, when the commonly used pile composite foundation is used to reinforce deep and thick soft foundations, there is generally a thicker underlying layer. Since the underlying layer has not been effectively reinforced, the water existing in the underlying layer cannot be drained out, resulting in poor stability of the underlying layer. , it is easy to cause post-construction ...

Claims

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Application Information

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IPC IPC(8): E02D3/02E02D3/10E02D5/46E02D3/08
Inventor 陈俊生赵维炳唐彤芝
Owner 陈俊生
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