Construction method for positioning and mounting underground side-by-side pipelines

Abstract

The invention discloses a construction method for positioning and mounting underground side-by-side pipelines. The construction method comprises the following steps that a pipeline positioning and fixing device is obtained, the pipeline positioning and fixing device comprises a fixing base, and the fixing base is fixed to the ground by using a fixing spiral drill rod; then a pipeline supporting and limiting device is obtained, the pipeline supporting and limiting device comprises a supporting base, a V-shaped groove is formed in the top surface of the supporting base, and lower insertion holes are in the two sides of the V-shaped groove; the supporting base is fixed to the ground through a supporting spiral drill rod, a pre-buried pipeline is placed on the fixing base, a supporting vertical rod is fixed to the fixing base, a sliding sleeve sleeves the supporting vertical rod, horizontally-arranged fixing rods are symmetrically fixed to the sliding sleeve, adjusting rods are slidably arranged on the upper side faces of the fixing rods, and adjusting blocks are slidably arranged on the lower side faces of the fixing rods; and upper outer insertion holes are formed in the ends, extending out of the fixing rods, of the adjusting rods, upper inner insertion holes are formed in the adjusting blocks, positioning inserting rods are arranged on the two sides of the pre-buried pipeline, the lower ends of the positioning inserting rods are inserted into the lower insertion holes, the upper ends of the positioning inserting rods are inserted into the upper inner insertion holes or the upper outer insertion holes, and the adjusting rods and the adjusting blocks are limited.

Description

technical field [0001] The invention relates to the field of pipeline installation, in particular to a construction method for positioning and installing underground parallel pipelines. Background technique [0002] At present, various pipeline constructions are very common, especially direct-buried finished prefabricated pipelines. In actual construction, it is found that the spacing of bidirectional pipelines of various materials and specifications is difficult to control. Even if the pipelines can be positioned and installed according to the requirements in the early stage, but in the later stage When backfilling pipe trenches, excavators and forklifts and other large-scale machinery and equipment are relatively simple and rough when pouring soil. The large lateral pressure of backfill materials often squeezes and deviates the two-way pipes, resulting in failure of the early positioning of the two-way pipes and the net distance between the pipes. At the same time, because...

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Problems solved by technology

[0002] At present, various pipeline constructions are very common, especially direct-buried finished prefabricated pipelines. In actual construction, it is found that the spacing of bidirectional pipelines of various materials and specifications is difficult to control. Even if the pipelines can be positioned and installed according to the requirements in the early stage, but in the later stage When backfilling pipe trenches, excavators and forklifts and other large-scale machinery and equipment are relatively simple and rough when pouring soil. The large lateral pressure of backfill materials often squeezes and deviates the two-way pipes, resulting in failure of the early positioning of the two-way pipes and the net distance between the pipes. At the same time, because the finished prefabricated pipelines are constructed in sections, the deviation of the pipeline in the front section will directly affect the positioning of the pipeline at the rear end. If the rear section is forcibly corrected and reset, the uneven seams between the two ends will affect The construction quality of the welding seam has buried serious quality and safety hazards for the project

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