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Prestressed steel sheet pile supporting structure and construction method thereof
The invention discloses a prestressed steel sheet pile supporting structure and a construction method thereof. The prestressed steel sheet pile supporting structure comprises a plurality of prestressed supporting units, wherein each prestressed supporting unit comprises a supporting pile, a plurality of steel supports and a prestressed tendon; each supporting pile is vertically arranged on one side of a to-be-excavated foundation pit; a plurality of the steel supports are arranged on the corresponding supporting pile from top to bottom; one end of each prestressed tendon is anchored at the lower part of the corresponding supporting pile. According to the construction method, a plurality of the prestressed supporting units are sequentially driven into soil around the to-be-excavated foundation pit, a plurality of the steel supports all face the to-be-excavated foundation pit, and a top beam is arranged at the top ends of the prestressed supporting units, so that the prestressed supporting units and the top beam form an integral body; tensile force is applied through the prestressed tendons, and the upper ends of the prestressed tendons are anchored on the top beam. According to the prestressed steel sheet pile supporting structure and the construction method thereof, the horizontal component of tensile force borne by the prestressed tendons is transmitted to the supporting structure, partial earth pressure of soil is counteracted, the supporting intensity is improved, and deformation of the supporting piles is reduced; besides, the supporting structure can be recycled, so that the cost is reduced.
Prestressed steel sheet pile supporting structure and construction method thereof
The invention discloses a prestressed steel sheet pile supporting structure and a construction method thereof. The prestressed steel sheet pile supporting structure comprises a plurality of prestressed supporting units, wherein each prestressed supporting unit comprises a supporting pile, a plurality of steel supports and a prestressed tendon; each supporting pile is vertically arranged on one side of a to-be-excavated foundation pit; a plurality of the steel supports are arranged on the corresponding supporting pile from top to bottom; one end of each prestressed tendon is anchored at the lower part of the corresponding supporting pile. According to the construction method, a plurality of the prestressed supporting units are sequentially driven into soil around the to-be-excavated foundation pit, a plurality of the steel supports all face the to-be-excavated foundation pit, and a top beam is arranged at the top ends of the prestressed supporting units, so that the prestressed supporting units and the top beam form an integral body; tensile force is applied through the prestressed tendons, and the upper ends of the prestressed tendons are anchored on the top beam. According to the prestressed steel sheet pile supporting structure and the construction method thereof, the horizontal component of tensile force borne by the prestressed tendons is transmitted to the supporting structure, partial earth pressure of soil is counteracted, the supporting intensity is improved, and deformation of the supporting piles is reduced; besides, the supporting structure can be recycled, so that the cost is reduced.
Prestressed steel sheet pile supporting structure and construction method thereof
WANG JIANLAN (author)
2015-12-09
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
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