High-performance liquefaction-resistance treatment method for gravel pile of existing building foundation

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United States of America Patent

PATENT NO 11105061
SERIAL NO

16976767

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Abstract

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The disclosure discloses a high-performance liquefaction mitigation method forstone columns for protecting the existing buildings during earthquakes. Specifically, a small equipment is used to dig trenches in the soil around the existing building. Then, a spiral driller is used to drill a series of boreholes in the trenches according to the optimized borehole design. Next, two or three layers of optimized gravel material with high permeability are filled into the boreholes to work as the inverted layer. Finally, geotextile is arranged around the trench and the trench is filled with the optimized gravel. Compared with current liquefaction mitigation methods for existing buildings, the disclosure is suitable for liquefaction mitigation in large cities, and has the advantages of low disturbance to the overlaid building, simple construction process, high construction efficiency, low construction cost, long service life and the construction material could be easily obtained.

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Patent Owner(s)

Patent OwnerAddress
ZHEJIANG UNIVERSITY311121 ZHEJIANG UNIVERSITY NO 866 YUHANGTANG ROAD XIHU DISTRICT HANGZHOU ZHEJIANG PROVINCE (NINGBO NO 6 INSTITUTE OF BINJIANG RESEARCH INSTITUTE ZHEJIANG UNIVERSITY) HANGZHOU CITY ZHEJIANG PROVINCE 311121

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liu, Kai Zhejiang, CN 775 7219
Ma, Qiang Zhejiang, CN 84 640
Zhou, Xinhui Zhejiang, CN 9 9
Zhou, Yanguo Zhejiang, CN 2 0

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