Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Static load test detection method for foundation pit excavation pile foundation
The invention relates to a static load test detection method for a foundation pit excavation pile foundation. According to the static load test detection method for the foundation pit excavation pile foundation, test pile data of the pile foundation designed elevation position can be accurately checked and the true mechanical characteristics of a pile body are acquired. According to the technical scheme, the method includes the steps that filling pile hole forming and construction are preformed in the pile foundation position on the ground of a planned site, when construction is performed to the designed elevation corresponding to the excavation depth of a foundation pit, a stress detector is embedded in the section of the pile body, and displacement meters are embedded in the side face of the pile body; broaching is performed on a stratum above the designed elevation of the pile foundation, the hole diameter is enlarged to be not smaller than 150 mm, an inner casing pipe and an outer casing pipe are sent, following filling construction of the pile foundation is preformed in the inner casing pipe, and materials are poured to the elevation of the ground of the planned site till filling pile construction is finished; and in the pile foundation static load detection process, an upper load is applied to the top of the filled pile on the ground of the planned site, welding angle steel is cut, and therefore the inner casing pipe and the outer casing pipe cannot make contact with each other.
Static load test detection method for foundation pit excavation pile foundation
The invention relates to a static load test detection method for a foundation pit excavation pile foundation. According to the static load test detection method for the foundation pit excavation pile foundation, test pile data of the pile foundation designed elevation position can be accurately checked and the true mechanical characteristics of a pile body are acquired. According to the technical scheme, the method includes the steps that filling pile hole forming and construction are preformed in the pile foundation position on the ground of a planned site, when construction is performed to the designed elevation corresponding to the excavation depth of a foundation pit, a stress detector is embedded in the section of the pile body, and displacement meters are embedded in the side face of the pile body; broaching is performed on a stratum above the designed elevation of the pile foundation, the hole diameter is enlarged to be not smaller than 150 mm, an inner casing pipe and an outer casing pipe are sent, following filling construction of the pile foundation is preformed in the inner casing pipe, and materials are poured to the elevation of the ground of the planned site till filling pile construction is finished; and in the pile foundation static load detection process, an upper load is applied to the top of the filled pile on the ground of the planned site, welding angle steel is cut, and therefore the inner casing pipe and the outer casing pipe cannot make contact with each other.
Static load test detection method for foundation pit excavation pile foundation
WANG MINGYUAN (Autor:in) / DI SHENGJIE (Autor:in) / PAN DENG (Autor:in)
04.11.2015
Patent
Elektronische Ressource
Englisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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