Fabricated pipe jacking working well construction method

Abstract

The invention provides an assembly type pipe jacking working well construction method, which belongs to the technical field of working well erection, and comprises the following steps: excavating a foundation pit, fixing a clamping block at the bottom of the foundation pit, and drilling a plurality of anchor rods into the side wall of the foundation pit. And the reaction wall is hoisted into the foundation pit and installed on the clamping blocks, and the top ends of the anchor rods all penetrate through the insertion holes of the reaction wall. And the other multiple assembly walls are hoisted, and the multiple assembly walls and the reaction wall are sequentially fixed so that the multiple assembly walls and the reaction wall can define the working well. And hoisting the reaction frame, and connecting the top ends of the plurality of anchor rods with the reaction frame to enable the reaction frame to abut against the front surface of the reaction wall. And concrete is poured on the back face of the reaction wall and the back face of the assembly wall, and construction of the working well is finally completed after the concrete is shaped. According to the construction method of the assembly type pipe jacking working well, the maximum load capable of being borne by the reaction frame is increased, the whole working well construction process is simple, and long-time stable operation of the working well is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of working well erection, and more specifically relates to a construction method for an assembled pipe jacking working well. Background technique [0002] Pipe jacking construction is a pipeline facility construction technology that does not excavate or excavates less. Pipe jacking construction is an underground pipeline construction method developed after shield tunneling construction. It does not need to excavate the surface layer, and can cross roads, railways, rivers, ground buildings, underground structures and various underground pipelines. [0003] In the process of pipe jacking construction, in order to reduce the construction jacking force of pipe jacking, most of them adopt the method of segmented construction. During the segmented construction process, vertical working wells and receiving wells need to be set up. In addition to providing the construction space required by machinery and personnel,...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a construction method for an assembled pipe jacking working well, aiming at solving the problem that the working well cannot provide sufficient reaction force for pipe jacking

Images