Construction method for treating soft foundation by reverse method

A technology of weak foundation and construction method, applied in the direction of infrastructure engineering, soil protection, construction, etc., can solve the problems of impossible engineering, high engineering cost, difficult quality hidden danger, etc., to improve the bearing capacity, long construction period, and stable engineering. Effect

Inactive Publication Date: 2005-03-16
长治市晋建加固防水技术开发有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

For complex weak foundation soil layers, such as saturated silt, moat ditches mixed fill, river beach accumulation soil, hillside geology, large thickness fly ash mixed fill, collapsible loess, weathered rock, quicksand, shallow water level and affected Due to the limitation of geological exploration, it is impossible to find out whether there are weak layers, tombs, cavities, etc. in the deep layer. If the foundation treatment construction is still carried out according to the traditional method, the geological conditions are often complex, not only the project cost is too high, the construction period is long, and the quality hidden dangers are difficult. Complete eradication, some special complex weak soil layers, for engineering design and construction personnel, is like a doctor encountering an intractable disease, sometimes no matter how much money is spent, it cannot be solved at all, making it impossible to build projects in these areas

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  • Construction method for treating soft foundation by reverse method

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Embodiment Construction

[0019] A construction method that uses the top-down method to treat weak foundations. The construction process steps are as follows:

[0020] 1. Preparations. Before the construction of the project, collect geological data according to the site conditions, types, grades, and characteristics where it is located, and master the foundation bearing capacity value (F K ), combined with the requirements of the engineering superstructure load on the foundation, determine the depth and scope of soft soil treatment.

[0021] 2. Construction of the main project. Under the condition of understanding the original foundation soil layer, first carry out the construction of the foundation and part of the main structure, and the number of construction layers shall be based on the original foundation bearing capacity (F K ) As the basis, generally the main structure will be capped on the second or third floor and cut into the foundation for construction. Specifically, it can bear the weight of sev...

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Abstract

A technology for treating soft ground by reverse construction order features that the foundation and part of main structure of a building is first built up and when the load on ground reaches its original bearing power the ground is grouted by pressure pouring while the structure of building is constructed. Its advantages are short constructino period and simple operation.

Description

1. Technical Field [0001] The invention belongs to building construction technology and relates to a reverse construction method for treating weak foundations. 2. Background technology [0002] As tall buildings stand on the ground, any building must be built on the foundation. As the cradle of the building, the foundation plays a decisive role in the entire building structure. Whether it is an industrial building or a civil building, all the loads are transmitted from the foundation to the foundation, and the size and the bearing capacity of the foundation depend on the type and physical and mechanical properties of the foundation soil. Many construction accidents are related to foundation problems, especially in areas with miscellaneous furnace ash filling, vertical and horizontal trenches, and complex geological conditions, often due to poor survey, design, and construction considerations or changes in the environment and usage. The occurrence of foundation engineering acciden...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/02E02D3/12E02D27/01E02D27/26E02D27/28
Inventor 耿兆统陈忍清姜锋
Owner 长治市晋建加固防水技术开发有限公司
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