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Title:
METHOD FOR REPLACING AND REINFORCING COASTAL SILT SOFT SOIL FOUNDATION BY PERFORMING TWO-TIME DYNAMIC RUBBLE COMPACTION
Document Type and Number:
WIPO Patent Application WO/2021/072941
Kind Code:
A1
Abstract:
Disclosed is a method for replacing and reinforcing a coastal silt soft soil foundation by performing two-time dynamic rubble compaction, the method comprising: performing first and second dynamic compaction on a coastal soft soil foundation for replacement and reinforcement to compress a sand layer by means of compaction work and reduce the water content and porosity thereof so as to eliminate the possibility of the seismic liquefaction of the sand layer; using fragmented stone to replace shallow silt soil so as to form a rubble replacement pile composite foundation to enhance the bearing capacity of the foundation, and simultaneously replacing piles with fragmented stone so as to compact the soil between the piles to reduce the porosity and water content of the soil; and performing drainage between the first and second dynamic compaction to accelerate the drainage and consolidation process of a silt soft soil layer, which effectively improves the bearing capacity of the foundation and eliminates the possibility of the liquefaction of a lower sand layer, thereby achieving the high-efficiency dynamic compaction replacement and reinforcement of the silt soft soil foundation, and solving problems such as the bearing capacity of a silt soft soil foundation being low, reinforcement treatment being difficult, drainage and consolidation speed being slow, and reinforcement treatment costs being high.

Inventors:
LIU, Wenlian (Dongfeng Lane Dongfeng East Roa, Kunming Yunnan 1, CN)
LI, Hongxiang (Dongfeng Lane Dongfeng East Roa, Kunming Yunnan 1, CN)
LI, Ze (Dongfeng Lane Dongfeng East Roa, Kunming Yunnan 1, CN)
ZHANG, Guohai (Dongfeng Lane Dongfeng East Roa, Kunming Yunnan 1, CN)
HAN, Pengwei (Dongfeng Lane Dongfeng East Roa, Kunming Yunnan 1, CN)
HE, Jiale (Dongfeng Lane Dongfeng East Roa, Kunming Yunnan 1, CN)
WU, Yinlong (Dongfeng Lane Dongfeng East Roa, Kunming Yunnan 1, CN)
SUI, Sugang (Dongfeng Lane Dongfeng East Roa, Kunming Yunnan 1, CN)
TANG, Guo (Dongfeng Lane Dongfeng East Roa, Kunming Yunnan 1, CN)
YAN, Dingyi (Dongfeng Lane Dongfeng East Roa, Kunming Yunnan 1, CN)
QIN, Yongguang (Dongfeng Lane Dongfeng East Roa, Kunming Yunnan 1, CN)
HAO, Yong (Dongfeng Lane Dongfeng East Roa, Kunming Yunnan 1, CN)
GAO, Nan (Dongfeng Lane Dongfeng East Roa, Kunming Yunnan 1, CN)
ZHANG, Jie (Dongfeng Lane Dongfeng East Roa, Kunming Yunnan 1, CN)
ZHOU, Zhiheng (Dongfeng Lane Dongfeng East Roa, Kunming Yunnan 1, CN)
ZHANG, Tenglong (Dongfeng Lane Dongfeng East Roa, Kunming Yunnan 1, CN)
HUA, Mingliang (Dongfeng Lane Dongfeng East Roa, Kunming Yunnan 1, CN)
Application Number:
CN2019/123609
Publication Date:
April 22, 2021
Filing Date:
December 06, 2019
Export Citation:
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Assignee:
KUNMING PROSPECTING DESIGN INSTITUTE OF CHINA NONFERROUS METALS INDUSTRY CO., LTD (Dongfeng Lane Dongfeng East Road, Kunming Yunnan 1, CN)
International Classes:
E02D3/00
Attorney, Agent or Firm:
K & H INTELLECTUAL PROPERTY FIRM (Unit A 9th Floor, Building 1, 28 Andingmen East Street, Dongcheng District, Beijing 7, CN)
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