Pile-forming operation method for bidirectional agitation cement injection pile

A piling operation method of a two-way mixing power spraying piling is realized by that two layers of positive spin mixing blades are arranged on the bit of an outside boring rod of a concentric inside and outside boring rod; two layers of reverse spin mixing blades are arranged on the bit of an inn...

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Bibliographic Details
Main Authors LIU SONGYU, SUN ZHUPING, DU GUANGYIN, YANG YONG
Format Patent
LanguageChinese
English
Published 01.09.2010
Subjects
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:A piling operation method of a two-way mixing power spraying piling is realized by that two layers of positive spin mixing blades are arranged on the bit of an outside boring rod of a concentric inside and outside boring rod; two layers of reverse spin mixing blades are arranged on the bit of an inner boring rod of the concentric inside and outside boring rod. A power spraying mouth is arranged between the two layer mixing blades on the bit of the inner boring rod. The bit of the inner boring rod is arranged below the outside boring rod. In the process of the bit of the inner boring rod rotating into the earth reversely, the positive rotating blades of the bit of the outside boring rod play the function of ash pressuring and simultaneously pros and cons stirring to block the shooting passage of cement power and ensure the uniform distribution of the cement power in the piling. As a result of the positive and reverse rotating stirring, the stirring is more fully. The process includes drilling, power spraying,
Bibliography:Application Number: CN2008120800