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Treatment method for soft soil foundation with high water content

A soft soil foundation and treatment method technology, applied in soil protection, infrastructure engineering, construction, etc., can solve problems such as limited foundation bearing capacity, long construction period, and limited treatment depth, so as to accelerate drainage consolidation and improve foundation bearing capacity , Reduce the effect of post-construction settlement

Inactive Publication Date: 2020-08-25
CHINA RAILWAY TUNNEL GROUP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Both of the above two inventions combine surcharge loading or vacuum preloading to accelerate drainage consolidation, but the construction period is longer, the treatment depth is limited, and the bearing capacity of the treated foundation is limited

Method used

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  • Treatment method for soft soil foundation with high water content
  • Treatment method for soft soil foundation with high water content
  • Treatment method for soft soil foundation with high water content

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] This embodiment discloses a water guide device for soft ground with relatively large water content, such as figure 1 and 2 As shown, it includes: a plurality of PVC pipes 1, one end of each PVC pipe 1 is closed, and is used to be placed vertically in a row in the soft soil foundation, and its closed end is located in the soft soil foundation, and the open end is located on the upper part of the soft soil foundation ; A plurality of reserved holes 2 communicating with the lumen are opened on the side wall of the part of each PVC pipe 1 located in the soft soil foundation. The closed end of the PVC pipe 1 is closed by setting a cover 6 . A closed end is provided to prevent the silt of the soft ground from entering the PVC pipe 1 from the bottom and blocking the lumen.

[0030] One or more high-pressure rotary nozzle pipes 3 are used t...

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Abstract

The invention discloses a water guide device for a soft soil foundation with high water content. The water guide device comprises a plurality of PVC pipes, high-pressure rotary spraying pipes and water drainage pipes, wherein one end of each PVC pipe is closed, and the PVC pipes are vertically placed in the soft soil foundation in rows; a plurality of reserved holes are formed in the side wall ofthe part, located in the soft soil foundation, of each PVC pipe; the high-pressure rotary spraying pipes are coaxially arranged in the PVC pipes in a sleeved mode, and outlets in the bottom ends of the high-pressure rotary spraying pipes are used for spraying air into the PVC pipes; the high-pressure rotary spraying pipes are lifted from bottom to top in the air spraying process until the high-pressure rotary spraying pipes are separated from the PVC pipes, so that high-pressure air is sprayed out from the reserved holes, and a plurality of transverse splitting drainage channels are formed inthe soft soil foundation; and the water drainage pipes are coaxially arranged in the PVC pipes in a sleeved mode, and are used for pumping and guiding water in the soft soil foundation into the PVC pipes through the drainage channels and guiding the water out through the water drainage pipes. According to the water guide device for the soft soil foundation with the high water content, the water insoft soil sludge is gathered into the PVC pipes and is discharged to the outside, so that the drainage consolidation can be accelerated, and the construction period can be shortened.

Description

【Technical field】 [0001] The invention belongs to the technical field of soft soil foundation treatment, and in particular relates to a method for treating soft soil foundation with relatively large water content. 【Background technique】 [0002] At present, the treatment methods for soft soil foundations with relatively large water content (including tidal flats, dredged silt distribution areas, etc.) usually adopt surcharge or vacuum preloading drainage consolidation method, or surcharge combined with vacuum preloading drainage consolidation method, and then use cement mixing Pile or mixed with a curing agent to form a composite foundation. [0003] The surcharge or vacuum preloading drainage consolidation method has great limitations. Mainly manifested in: (1) The existing technology is a deep treatment technology from the surface to the underground, and the economic treatment depth generally does not exceed 10m; (2) The construction period is long; (3) The follow-up soil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/10
CPCE02D3/10E02D2250/0084E02D2300/0007
Inventor 牛富生卓越邹翀王光辉刘永胜李治国陈海军杨泽平杨朝帅贺雄飞蒋永星王春玲洪侨亨
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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