Method for treating foundation consisting of liquid soil layer and soft soil mutual layer

The invention discloses a method for treating a foundation consisting of a liquid soil layer and a soft soil mutual layer, which is provided mainly for solving the problem that the foundation consisting of the liquid soil layer and the soft soil mutual layer cannot be treated by the conventional met...

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Bibliographic Details
Main Authors LIU SONGYU, DU GUANGYIN, CHENG YUAN
Format Patent
LanguageChinese
English
Published 05.01.2011
Subjects
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:The invention discloses a method for treating a foundation consisting of a liquid soil layer and a soft soil mutual layer, which is provided mainly for solving the problem that the foundation consisting of the liquid soil layer and the soft soil mutual layer cannot be treated by the conventional method. In the method, combined construction of bidirectional stirring variable-section piles and sandcompaction piles is adopted, wherein the sand compaction piles solve the liquefaction problem of the upper liquid soil layer, and the expanded-diameter piles solve the bearing capacity and settlementproblems of the soft soil layer. The method comprises the steps of: a, leveling a site; b, positioning a bidirectional stirring pile machine; c, drilling down, guniting and stirring; d, lifting; e, constructing the sand compaction piles; and f, using a composite foundation formed by the formed bidirectional stirring variable-section piles and sand compaction piles to treat the foundation consisting of the liquid soil layer
Bibliography:Application Number: CN20091185349