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A platform for research: civil engineering, architecture and urbanism
Inclined prefabricated steel pile foundation pit supporting system with supporting and excavating functions and construction method thereof
The invention discloses an inclined prefabricated steel pile foundation pit supporting system with supporting and excavating functions and a construction method thereof. The supporting system is composed of a foundation pit retaining structure, inclined prefabricated steel piles, a pile top beam and recharge concrete. The supporting system can solve the problem that the distance between a foundation pit excavation side line and a land red line is required to be at least 5m in the construction operation range of inclined pile driving machinery, and the prefabricated steel pile inclined supporting piles are formed by connecting a plurality of single prefabricated steel piles through welding or flanges. The length and the cross section area of each single prefabricated steel pile can be adjusted according to actual requirements. After the prefabricated steel piles are pressed into a soil layer to reach the designed elevation, concrete is poured into the prefabricated steel piles, and the compressive property of steel and concrete is fully exerted. After a foundation pit is completed, the upper steel piles can be repeatedly used after being cut, and the supporting system has the advantages of being simple in construction, high in efficiency, capable of saving cost and the like.
本发明公开一种先撑后挖的斜向预制钢桩基坑支护体系及其施工方法，所述支护体系由基坑围护结构、斜向预制钢桩、桩顶冠梁、回灌混凝土组成，该发明可以解决斜桩打桩机械施工作业范围要求基坑开挖边线和用地红线之间距离至少为5m的限制，预制钢桩斜向支撑桩由多节单根预制钢桩通过焊接或者法兰连接而成。单根预制钢桩的长度和截面面积可以根据实际需要调节。待预制钢桩压入到土层设计标高后，往预制钢桩中灌注混凝土，充分发挥钢材和混凝土的抗压性能。基坑完工后，上部分钢桩切割后可以重复利用，具有施工简单、效率高、节约成本等优点。
Inclined prefabricated steel pile foundation pit supporting system with supporting and excavating functions and construction method thereof
The invention discloses an inclined prefabricated steel pile foundation pit supporting system with supporting and excavating functions and a construction method thereof. The supporting system is composed of a foundation pit retaining structure, inclined prefabricated steel piles, a pile top beam and recharge concrete. The supporting system can solve the problem that the distance between a foundation pit excavation side line and a land red line is required to be at least 5m in the construction operation range of inclined pile driving machinery, and the prefabricated steel pile inclined supporting piles are formed by connecting a plurality of single prefabricated steel piles through welding or flanges. The length and the cross section area of each single prefabricated steel pile can be adjusted according to actual requirements. After the prefabricated steel piles are pressed into a soil layer to reach the designed elevation, concrete is poured into the prefabricated steel piles, and the compressive property of steel and concrete is fully exerted. After a foundation pit is completed, the upper steel piles can be repeatedly used after being cut, and the supporting system has the advantages of being simple in construction, high in efficiency, capable of saving cost and the like.
本发明公开一种先撑后挖的斜向预制钢桩基坑支护体系及其施工方法，所述支护体系由基坑围护结构、斜向预制钢桩、桩顶冠梁、回灌混凝土组成，该发明可以解决斜桩打桩机械施工作业范围要求基坑开挖边线和用地红线之间距离至少为5m的限制，预制钢桩斜向支撑桩由多节单根预制钢桩通过焊接或者法兰连接而成。单根预制钢桩的长度和截面面积可以根据实际需要调节。待预制钢桩压入到土层设计标高后，往预制钢桩中灌注混凝土，充分发挥钢材和混凝土的抗压性能。基坑完工后，上部分钢桩切割后可以重复利用，具有施工简单、效率高、节约成本等优点。
Inclined prefabricated steel pile foundation pit supporting system with supporting and excavating functions and construction method thereof
一种先撑后挖的斜向预制钢桩基坑支护体系及其施工方法
ZHANG YIMING (author) / ZHANG FUHAI (author) / ZHOU YUSHI (author) / YANG XUEQING (author)
2021-06-22
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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