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A platform for research: civil engineering, architecture and urbanism
Combined cast-in-situ bored pile structure in cumulosol
The invention discloses a combined cast-in-situ bored pile structure in cumulosol. The combined cast-in-situ bored pile structure in the cumulosol comprises a cast-in-situ bored pile, a cement clay mud reinforced body, the cumulosol and a steel wire sleeve. The cast-in-situ bored pile penetrates through the cumulosol and the other soil layers around the pile; cement clay mud is injected within the deep range of cumulosol layers at the position of the cast-in-situ bored pile through a high-pressure jet grouting device and method firstly, so that the cement clay mud reinforced body with the large diameter is formed; when the quality of the cement clay mud reinforced body tends to be stable, the cast-in-situ bored pile is constructed at the same pile position, the steel wire sleeve made of steel wire gauze pieces is bound on a steel reinforcement cage during construction, and the binding positions are in one-to-one correspondence with the depth, the thickness and the number of the cumulosol layers. By the adoption of the combined cast-in-situ bored pile structure in the cumulosol, the construction problems that the hole forming quality of the cast-in-situ pile is poor and the concrete filling coefficient is large in the foundation pit engineering in a deep and thick cumulosol geological environment can be effectively solved.
Combined cast-in-situ bored pile structure in cumulosol
The invention discloses a combined cast-in-situ bored pile structure in cumulosol. The combined cast-in-situ bored pile structure in the cumulosol comprises a cast-in-situ bored pile, a cement clay mud reinforced body, the cumulosol and a steel wire sleeve. The cast-in-situ bored pile penetrates through the cumulosol and the other soil layers around the pile; cement clay mud is injected within the deep range of cumulosol layers at the position of the cast-in-situ bored pile through a high-pressure jet grouting device and method firstly, so that the cement clay mud reinforced body with the large diameter is formed; when the quality of the cement clay mud reinforced body tends to be stable, the cast-in-situ bored pile is constructed at the same pile position, the steel wire sleeve made of steel wire gauze pieces is bound on a steel reinforcement cage during construction, and the binding positions are in one-to-one correspondence with the depth, the thickness and the number of the cumulosol layers. By the adoption of the combined cast-in-situ bored pile structure in the cumulosol, the construction problems that the hole forming quality of the cast-in-situ pile is poor and the concrete filling coefficient is large in the foundation pit engineering in a deep and thick cumulosol geological environment can be effectively solved.
Combined cast-in-situ bored pile structure in cumulosol
DING WENYUN (author) / LI GUANGHUI (author) / ZHANG KEJUN (author) / YANG XIANG (author) / LUO YUNFEI (author) / YIN HONGBO (author) / LUO SHENGLI (author) / GUO YONGFA (author) / ZHANG HONGYONG (author) / XIAO YONGGANG (author)
2015-11-18
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
Cast-in-situ bored pile water stop structure and cast-in-situ bored pile construction method
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