Construction technology of municipal pipeline maintenance

A construction technology and municipal pipeline technology, applied in the field of municipal pipeline construction, can solve problems such as lowering work efficiency, damage to traction devices, blocking, etc., and achieve the effect of improving work efficiency and reducing damage

Inactive Publication Date: 2018-08-03
杭州大江东城市设施管养有限公司
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Problems solved by technology

[0008] The disadvantage of the existing technology is that when the pipeline is pulled into the underground borehole, generally by fixing the pulling head at the front end of the pipeline, and then fixing the pulling head with the cable, pulling the pulling head and the pipeline from one end of the borehole to the other end, the pipeline is pulled out. Insert it into the borehole to complete the installation of the pipe; however, during the previous reaming and orig

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  • Construction technology of municipal pipeline maintenance
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Embodiment Construction

[0046] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0047] A construction process for municipal pipeline maintenance, comprising the steps of:

[0048] S1. On-site survey, plan according to the original pipeline trajectory; block the nearest drainage wells on both sides of the damaged pipeline, and cut off the drainage in the repaired pipeline area.

[0049] S2. Excavating working pits: Dig a digging working pit and an excavating working pit at the positions of the guiding entry and exit points. The guiding entry pit is 2.5 meters deep, 6 meters long and 1.5 meters wide, and the excavation pit is 2.5 meters deep. The chute is 6 meters long and 1.5 meters wide; it is convenient for the mud to be discharged from the storage and the pipeline to be dragged back.

[0050] S3, pilot hole drilling

[0051] a. Safety enclosure of the construction area

[0052] b. Deep well dewatering, two deep well dewatering shall...

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Abstract

The invention relates to a municipal pipeline construction technology and discloses a construction technology of municipal pipeline maintenance. The construction technology of municipal pipeline maintenance solves the problem that in an existing pipeline traction process, a pipeline is prone to being blocked by an obstacle in a guide hole, and the traction of the pipeline is inconvenient. The construction technology of municipal pipeline maintenance includes the following steps that S1, on-site investigation is carried out; S2, a working pit is dug; S4, a guide hole is drilled; S5, the hole isbackward enlarged; S6, a pipeline is backward dragged; S7, pipeline connection is carried out; S8, the pipeline is grouted outside; and S9, drainage wells at both ends are unblocked. The constructiontechnology has the function of driving a traction head to rotate automatically, an axial impact force on an obstacle in the guide hole is changed into a radial acting force, so that the obstacle in adrill hole can be flattened conveniently, and the obstacle can be prevented from blocking the pipeline in the traction process. At the same time, the damage to a traction device is reduced, and thusthe working efficiency is improved.

Description

technical field [0001] The invention relates to a municipal pipeline construction technology, in particular to a municipal pipeline maintenance construction technology. Background technique [0002] Municipal pipeline engineering is an important part of municipal engineering and an important infrastructure engineering facility in a city. Municipal plumbing projects include: water supply pipes, drainage pipes, gas pipes, heat pipes, and power cables. Water supply pipelines: mainly transport and supply domestic water, production water, fire-fighting water, municipal greening and spraying water for cities, including water pipelines and water distribution pipe networks. [0003] Drainage pipes: mainly collect urban domestic sewage, industrial wastewater and rainwater in a timely manner, and transport domestic sewage and industrial wastewater to sewage treatment plants for treatment and discharge, and discharge rainwater nearby. To ensure the sanitation of the city and the safe...

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Application Information

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IPC IPC(8): F16L55/16
Inventor 朱家盛陈浩宇刘东倚张莹何泉
Owner 杭州大江东城市设施管养有限公司
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