Ground foundation delay consolidation treatment method

A treatment method and foundation technology, applied in infrastructure engineering, construction, etc., can solve problems such as extended construction period, high construction cost, and low engineering performance-to-cost ratio, and achieve the effect of shortening construction period and reducing construction cost

Inactive Publication Date: 2004-03-03
CHINA CIVIL ENG CONSTR CORP
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Problems solved by technology

Among them, shallow treatment methods such as cushioning and replacement cannot deal with deep and weak foundations; although drainage consolidation methods can deal with deep and weak foundations, and the cost is low, there are problems such as preloading or placement treatment, and sometimes it even takes a long time. In addition, the foundation will have a large degree of settlement during the construction period, which will undoubtedly prolong the construction period and increase the amount and co

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  • Ground foundation delay consolidation treatment method
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[0012] The traditional foundation treatment technology to reduce the settlement of the foundation after construction is mainly divided into two types: accelerating the process of foundation drainage and consolidation and strengthening the foundation. As we all know, excessive pore water pressure will be generated inside the foundation under the action of external load. The foundation soil must be drained and consolidated under this pressure. At this time, the excess pore water pressure will gradually dissipate and the effective stress will gradually increase. When compacted, the strength of the foundation soil gradually increases, and the bearing capacity gradually increases. At the same time, the ground will gradually settle, and the deformation modulus of the foundation soil gradually increases until it reaches a stable state, that is, the gradual change when the excess pore water pressure dissipates to zero The process will stop. The former type of foundation treatment technolo...

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Abstract

A delayed consolidation method for foundation or road bed features that a ring of vertical impervious curtain wall is built surrounding the foundation and an horizontal impervious linked with said virtical impervious curtain wall in sealing form is built up under building. Its advantages are low cost, short period, and damage to foundation earth.

Description

technical field [0001] The invention relates to a ground treatment method in the field of civil engineering, in particular to a ground delay consolidation treatment method. Background technique [0002] With the rapid development of social economy, civil engineering has put forward new requirements for the performance of the foundation, that is, from the past focusing on the strength of the foundation soil and the bearing capacity of the foundation, it has changed to the requirement of the foundation under the action of external loads. Settlement is strictly controlled. Especially in recent years, the construction speed of my country's high-speed railways, expressways and railway passenger dedicated lines has been accelerating. Because the project has very strict requirements on the settlement of the subgrade after construction, and usually the lines span a wide area and the project volume is huge, so The problem of settlement control on weak foundations is particularly prom...

Claims

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Application Information

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IPC IPC(8): E02D27/30
Inventor 刘远锋
Owner CHINA CIVIL ENG CONSTR CORP
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