Hybrid power drainage consolidation system applied to deep saturated soft soil foundation and construction method

A soft soil foundation and composite dynamic technology, which is applied in basic structure engineering, soil protection, construction, etc., can solve the problem of not being able to solve the reinforcement treatment of saturated soft soil foundation well, the reinforcement depth of soft soil foundation cannot meet the design requirements, Due to the limited bearing capacity of soft soil foundations, the effect of facilitating application and promotion, shortening construction period and improving bearing capacity

Active Publication Date: 2016-10-26
TANGSHAN IND VOCATIONAL TECHN COLLEGE +1
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Problems solved by technology

Strengthening the in-situ foundation to improve the engineering characteristics of the foundation is the main trend of current research and application. The specific in-situ foundation treatment technology includes vacuum preloading method, dynamic compaction method, CFG pile, etc., but the above-mentioned single soft foundation treatment method or Improving the bearing capacity of the soft soil foundation is limited, or the actual reinforcement depth of the soft soil foundation cannot meet t

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  • Hybrid power drainage consolidation system applied to deep saturated soft soil foundation and construction method
  • Hybrid power drainage consolidation system applied to deep saturated soft soil foundation and construction method
  • Hybrid power drainage consolidation system applied to deep saturated soft soil foundation and construction method

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Embodiment 1

[0032] A high-rise civil construction project in the Caofeidian area of ​​Tangshan City, with 10 floors above ground and 1 floor underground, the structure is a frame-shear wall structure, and the foundation is a raft foundation. The geology of the red line of the project is mainly typical silty clay and silty powder There is a 5m-thick soft underlying layer at a distance of -14m from the ground surface. For specific parameters such as soil layer thickness, soil layer deformation modulus, soil layer Poisson's ratio, and soil layer friction angle, please refer to the engineering geological survey report. The saturated soft soil foundation in this area should meet the characteristic value of foundation bearing capacity =180kPa ground treatment requirements, now adopt the composite power drainage consolidation system construction method disclosed by the present invention to construct according to the following steps:

[0033] (1) According to the design requirements of the drawin...

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Abstract

The invention provides a hybrid power drainage consolidation system composed of a vacuum shaft drainage system, a foundation hybrid consolidation system and a full compaction rolling system and a construction method. The bearing capacity of a foundation is remarkably improved, meanwhile, the effects of strong drainage, strong compaction, high kinetic energy, over pressure and the like are integrated, post-construction settlement of the saturated soft soil foundation can be effectively controlled, engineering cost can be reduced, and the construction period can be shortened; and meanwhile the treatment depth of the foundation is large, the foundation is good in reinforcement effect and remarkable in environmental protection effect, that is, vibration, noise, air pollution and the like are reduced, and the later maintenance charge is reduced.

Description

1. Technical field [0001] The invention belongs to the technical field of civil engineering construction, and more specifically relates to a drainage consolidation system and a construction method applied to deep saturated soft soil foundations, and is mainly suitable for drainage consolidation of deep saturated soft soil foundations with high groundwater levels in coastal areas deal with. 2. Background technology [0002] Saturated soft soil foundations are mainly distributed in the coastal areas along the river in eastern my country, and have the characteristics of low shear strength, high compressibility, large void ratio, high water content, and strong rheology. Rapid development, combined with the foundation treatment problems exposed during construction and use, my country's "Code for Design of Building Foundations" (GB50007-2011), "Technical Specifications for Building Foundation Treatment" (JGJ79-2012), "Code for Foundations of Port Engineering" ( JTS147-1-2010), etc....

Claims

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Application Information

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IPC IPC(8): E02D3/10
CPCE02D3/10
Inventor 温欣朴健徐强东贺玉娜张健新
Owner TANGSHAN IND VOCATIONAL TECHN COLLEGE
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