Buried pipeline construction method

Abstract

The invention relates to the field of pipeline construction and discloses a buried pipeline construction method. A pipe ditch pipeline transfer frame can be assembled on a construction site, the occupied area is small, site limitation is avoided, and construction can be carried out on a site where a large crane cannot arrive. At least two n-shaped frames are adopted for hoisting together, hoisting of long pipelines is facilitated, a space used for holding the pipelines is reserved between a base and a pipe ditch, thus splicing and corrosion resistant treatment of a very large part of pipelines can be conducted on the ground, operation difficulty is lowered to a large extent, construction efficiency can be improved, and a good protection effect can be achieved on finished pipelines. Compared with the prior crane hoisting mode, the buried pipeline construction method is good in hoisting stability and precision, easy assembly construction is ensured when the pipelines are put down to the ditch bottom, construction quality is greatly improved, and site construction can reduce mechanical machine-team cost and can also lower safety risk greatly.

Description

technical field [0001] The invention relates to the field of pipeline construction, in particular to a buried pipeline construction method. Background technique [0002] In municipal engineering, water conservancy engineering, building construction and metallurgical industry pipeline installation, construction operations of buried pipelines are often encountered. The existing trench pipeline construction method usually uses a large crane to hoist the pipeline in sections into the trench, and then assembles, welds and performs anti-corrosion treatment on the pipeline. The advantages of this construction method are flexible construction and fast hoisting, but it also has many defects: [0003] 1. There are certain requirements for the site and space, and this method cannot be used for some construction sites that are difficult to reach by cranes; [0004] 2. Although the operation of the crane is relatively flexible, its hoisting stability is poor, the operation error is lar...

AI Technical Summary

Problems solved by technology

[0003] 1. There are certain requirements for the site and space, and this method cannot be used for some construction sites that are difficult to reach by cranes;

[0004] 2. Although the operation of the crane is relatively flexible, its hoisting stability is poor, the operation error is large, safety accidents are prone to occur, and it is easy to cause certain damage to the pipeline;

[0005] 3. Due to the extremely difficult operation of double cranes, usually only a single crane can be used for operation. The length of the pipeline that can be hoisted by a single crane is short. However, it is very inconvenient to carry out these operations in the pipe trench, which greatly increases the labor intensity, and causes the efficiency of installing the pipeline to be very low;

[0006] 4. The mechanical shift fee of the crane is relatively high, which is not conducive to controlling the project cost

Images