Prestressed hollow pile foundation pit supporting structure for wind power plant construction: Fid-Bau Portal

Prestressed hollow pile foundation pit supporting structure for wind power plant construction

XU CHANGJIE / LIU FENGTAO / XU HAIBIN

The invention relates to the technical field of supporting structures, and discloses a prestressed hollow pile foundation pit supporting structure for wind power plant construction, which comprises a supporting steel plate, a baffle is hinged to one side of the upper end of the supporting steel plate, and a first inclined hole and a second inclined hole are respectively formed in the supporting steel plate and the baffle in a penetrating manner; a baffle is hinged to one side of the upper end of the supporting steel plate, the supporting steel plate is installed on the side wall of the foundation pit, the baffle and the supporting steel plate are in a perpendicular state, soil around the foundation pit is loose, and when walking on the edge of the upper end of the foundation pit, a worker directly steps on the baffle, so that the worker can conveniently walk on the side wall of the foundation pit. By arranging the inclined first inserting rod and the inclined second inserting rod, the second inserting rod penetrates through the through hole of the first inserting rod, so that an annular structure is formed among the supporting steel plate, the baffle, the second inserting rod and the first inserting rod, and the stability of the second inserting rod and the first inserting rod in the soil is enhanced.

本发明涉及支护结构技术领域，且公开了一种用于风电场施工的预应力空心桩基坑支护结构，包括支撑钢板，所述支撑钢板上端一侧铰接有挡板，所述支撑钢板和挡板上分别贯穿开设有第一斜孔和第二斜孔，所述第一斜孔内贯穿设置有第一插杆，本发明通过在支撑钢板上端一侧铰接挡板，将支撑钢板安装在基坑侧壁，使得挡板与支撑钢板之间为垂直状态，基坑周边泥土较为松动，使得工作人员行走在基坑上端边缘时，直接踩压挡板，避免直接踩压泥土，使得泥土推动支撑钢板倾斜，通过设置倾斜的第一插杆和第二插杆，且第二插杆贯穿第一插杆的穿孔，使得支撑钢板、挡板、第二插杆和第一插杆之间形成环形结构，加固第二插杆和第一插杆在泥土内的稳定性。

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