A vertical external pull ground anchor pile tube groove foundation pit protection wall structure and construction method

Abstract

The invention discloses a vertical external pulling ground anchor pile pipe channel foundation pit protecting wall structure and a construction method thereof. A pipeline fixing base is arranged between two adjacent ground anchor piles in a pipe channel and at the bottom of the pipe channel, extrusion blocks a are arranged between the wall of the pipe channel and the ground anchor piles in the pipe channel, extrusion blocks b are arranged between the ground anchor piles in the pipe channel and the pipeline fixing base, the ground anchor piles in the pipe channel are connected with longitudinal vertical columns by virtue of screw thread connecting pipes, horizontal pull rods a are erected above to-be-erected pipelines, the two ends of the horizontal pull rods a are connected with longitudinal vertical columns on two sides of the to-be-erected pipelines by virtue of right-angle couplers, the top ends of the longitudinal vertical columns exceed the upper end of a pipe channel foundation pit, and are connected with horizontal pull rods b by virtue of square elbows, the horizontal pull rods b are connected with the end parts of ground anchor piles outside the foundation pit, protection nets are hung on the side walls, close to the walls of the pipe channel, of the longitudinal vertical columns above the extrusion blocks a, and a horizontal pull rod c is arranged between the two adjacent longitudinal vertical columns on the same sides of the to-be-erected pipelines. The vertical external pulling ground anchor pile pipe channel foundation pit protecting wall structure has the beneficial effects that the inner and outer ground anchor pile combined vertical pipe channel foundation pit protection wall structure is safe and firm, can be recycled and reused, is economic and applicable, is simple to operate, and is concise in process.

Description

technical field [0001] The invention relates to a wall protection structure and a construction method of a foundation pit, in particular to a wall protection structure and a construction method of a vertical pipe groove externally pulled ground anchor pile. Background technique [0002] In the process of urbanization, underground pipeline projects are increasing. The excavation of underground pipe trench foundation pit is long vertically and narrow horizontally, and the service period of pipe trench foundation pit is short. The conventional foundation pit support method has the characteristics of high cost of retaining wall, long construction period and slow progress of retaining wall, which is difficult to meet the requirements of pipe trench. Engineered retaining wall requirements. At present, the existing pipe trench foundation pit of the pipeline project is in the state of exposed vertical steep slope. During the excavation and use of the pipe trench foundation pit, the...

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Problems solved by technology

The excavation of underground pipe trench foundation pit is long vertically and narrow horizontally, and the service period of pipe trench foundation pit is short. The conventional foundation pit support method has the characteristics of high cost of retaining wall, long construction period and slow progress of retaining wall, which is difficult to meet the requirements of pipe trench. engineering wall requirements

At present, the existing pipe trench foundation pit of the pipeline project is in the state of exposed vertical steep slope. During the excavation and use of the pipe trench foundation pit, the on-site work has a great construction risk, and it also has a great impact on the traffic and environment along the pipeline project. big security risk

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