Near fault pile group foundation disaster prevention and reduction structure and construction method thereof

A pile group foundation and fault technology, applied in the field of disaster prevention and mitigation measures for double-row partition walls, can solve problems such as cracking of the overlying soil on the bedrock, lack of disaster mitigation measures, fracture and damage of building pile foundations, etc.

Active Publication Date: 2018-05-29
HUAQIAO UNIVERSITY
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Problems solved by technology

[0002] The dislocation of the fault during the earthquake may lead to the rupture of the overlying soil of the bedrock, resulting in the fracture and damage of the pile foundation

Method used

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  • Near fault pile group foundation disaster prevention and reduction structure and construction method thereof
  • Near fault pile group foundation disaster prevention and reduction structure and construction method thereof
  • Near fault pile group foundation disaster prevention and reduction structure and construction method thereof

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] The method adopted in the present invention can take effective disaster prevention and mitigation measures for the existing buildings which are located near active faults and adopt pile foundations, so as to reduce their damage during fault activities.

[0029] Such as figure 1 , figure 2 , image 3 As shown, the disaster prevention and mitigation structure of the pile group foundation 1 near the fault includes: the pile group foundation 1, the double-row separation wall 2 composed of cement mixing piles, the soil layer anchor cable 22 and the fine sand belt 23;

[0030] The pile group foundation 1 is located in the overlying soil 34 of the fault; the double-row separation wall 2 is located between the pile group foundation 1 and the active fault 31, and the adjacent cement mixing piles in each row of separation wall 2 are closely arranged and inserted into t...

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Abstract

The invention provides a near fault pile group foundation disaster prevention and reduction structure which comprises a pile group foundation, double-row partition walls composed of cement mixing piles, soil layer anchor cables and a fine sand belt; the pile group foundation is arranged in an overlying soil layer of a fault footwall and is easily threatened by deformation and failure caused by movement of a fault; the double-row partition walls are arranged between the pile group foundation and a movement dipping fault, and adjacent cement mixing piles are tightly arranged and are inserted into the overlying soil layer to a certain depth; the soil layer anchor cables penetrate through the pile group foundation, one ends of the soil layer anchor cables are driven into a stabilized soil layer, and the other ends of the soil layer anchor cables are anchored on the cement mixing piles, close to one side of the pile group foundation, of the partition wall; and the fine sand belt is used forsubstituting soil bodies between the double-row partition walls. The structure can adopt effective disaster prevention and reduction measures aiming to the existing building which is arranged nearbythe movement dipping fault and adopts the pile group foundation.

Description

technical field [0001] The invention relates to disaster reduction measures for pile group foundations near faults, in particular to a disaster prevention and reduction measure and implementation method for a double-row separation wall composed of cement mixing piles for pile group foundations near faults. Background technique [0002] The dislocation of the fault during the earthquake may lead to the rupture of the overlying soil of the bedrock, resulting in the fracture and damage of the pile foundation of the building near the surface rupture zone. There is currently a lack of targeted disaster reduction measures for the pile foundation near the active fault. Special attention. How to block the deformation and development of the overlying soil through reasonable isolation technology and reduce the damage caused by fault activities to the pile foundation of building groups can become an important research direction for disaster prevention and mitigation near faults. Cont...

Claims

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Application Information

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IPC IPC(8): E02D31/08E02D27/12
CPCE02D27/12E02D31/08
Inventor 蔡奇鹏彭佳明陈星欣苏世灼魏少伟徐根连
Owner HUAQIAO UNIVERSITY
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