A municipal pipeline construction device and construction method

Abstract

The invention relates to a municipal pipeline construction device, and belongs to the technical field of pipeline construction. The problem that a pipeline is damaged by excessive force is solved. Themunicipal pipeline construction device includes an ejector rob, a guiding vehicle, a hydraulic cylinder, an intermediate pipe and a plurality of pipe lines, and a plurality of abutting and pressing blocks are fixedly disposed on the inner wall of the intermediate pipe in the circumferential direction, the ejector rob includes a working portion and a plurality of sections of connecting portions, and abutting and connecting portions for being connected with the abutting and pressing blocks at the front end of the working portion in an abutting mode; and the guiding vehicle includes a vehicle frame, a plurality of moving assemblies disposed on the vehicle frame for supporting the vehicle frame and moving along the pipelines, a receiving plate disposed on the vehicle frame for receiving the ejector rob and a limiting assembly disposed on the vehicle frame for limiting the position of the ejector rob, and a traction rope is fixedly connected to the vehicle frame of the guiding vehicle. Theintermediate pipe and the ejector rob are arranged to prevent the pipelines from being damaged due to excessive pressure during the jacking process.

Description

technical field [0001] The invention relates to the technical field of pipeline construction, in particular to a municipal pipeline construction device and construction method. Background technique [0002] In municipal engineering, there are often pipeline construction operations. [0003] The Chinese patent application publication number CN107191676A discloses a buried pipeline construction method, which includes the following steps: [0004] a. Excavate pipe trenches and transport materials in place; [0005] b. After the trench is excavated and the materials are in place, a trench pipeline transfer frame is erected. The trench pipeline transfer frame includes at least two gantry frames, and the gantry frame includes a base, a column, a hoisting beam and an inverted chain, The base is arranged on both sides of the portal frame, the column is arranged on the base, the hoisting beam is set above the columns on both sides, the hoisting beam has a beam slide rail, and the b...

AI Technical Summary

Problems solved by technology

[0010] Its shortcoming is that this construction method needs to excavate the pipe trench from the ground in advance, which will affect the normal traffic of the road for the construction environment of the street, and has limitations

[0012] However, for pipe jacking construction with long distance or increased soil friction coefficient in front of the pipeline movement, the pipeline needs to overcome the increased friction of the soil around the foundation hole, especially for the pipeline near the end of the working well, it needs to overcome the pressure of all pipelines in the foundation hole. Therefore, the pressure on the pipeline close to the end of the working well will greatly increase during the jacking process, and even exceed the pipeline's own pressure resistance, resulting in pipeline damage

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