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Non-digging tube-pulling construction method

A technology of trenchless and construction method, applied in the field of trenchless pipe-drawing construction method, can solve the problems of inability to meet construction conditions, complicated underground pipelines, and inability to construct, achieve considerable economic benefits, reduce labor intensity, and construction speed. quick effect

Inactive Publication Date: 2012-04-25
江苏广宇建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the influence of geography and environment, as well as the obstruction of underground buildings, traffic congestion, and the complex arrangement of underground pipelines, the open-cut method of laying pipes can no longer meet the requirements of construction conditions, and sometimes it is even impossible to construct.

Method used

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  • Non-digging tube-pulling construction method
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  • Non-digging tube-pulling construction method

Examples

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Effect test

example 1

[0055] Example 1. In a factory, the reclaimed water stake number is 2+760~3+096, the pipeline length is 336m, the original design DN500 ductile iron pipe is grooved, the water surface elevation is 9.996~11.086, and the average buried depth of the pipeline is 2m. The building cannot be demolished, so the pipe-drawing construction is used here. The 336m-long pipe is divided into two sections, 200m for one section and 136m for one section. The pipe material is changed to φ500PE pipe. During the pipe-drawing construction process, there was no normal operation of the factory, and the structural quality of the house was not damaged in any way. The construction saved 3,500 square meters of earthwork excavation and backfilling, saved labor costs of 120,000 yuan, and saved construction costs of 420,000 yuan. The construction period was 15 days ahead of schedule, and the project was completed and accepted.

example 2

[0056] Example 2. The reclaimed water (reclaimed water) reuse project of a plant passes through the swimming pool. The reclaimed water stake number is 3+504~3+700, the length of the pipeline is 196m, the upper level of the water surface is 9.193~9.000, and the average buried depth of the pipeline is 3.2m. Pipe drawing construction, 196m of pipe drawing at a time, the pipe material is φ500PE pipe. Reduce the amount of earthwork excavation and backfill by 2,000 cubic meters, save 80,000 yuan in labor costs, save 250,000 yuan in construction costs, advance the construction period by 10 days, and pass the project completion acceptance.

example 3

[0057] Example 3. The pipe jacking project of a sewage pipe network, stake number: 0+035~1+500, plus 300m. The supervisor is located under the slow lane of the road, and is constructed by drawing pipes, and the pipes are φ500PE pipes. Save 1,900 square meters of earthwork excavation and backfill, save 80,000 yuan in labor costs, save 250,000 yuan in construction costs, advance the construction period by 10 days, and pass the project completion acceptance.

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Abstract

The invention relates to a non-excavation tube pulling construction method which comprises the following steps: (1) preparation work: understanding stratum and underground condition, calculating the number of chambering and the size of a return compandor, and formulating the control data of a pipeline midline and elevation and correction measures; (2) measuring plane surface, controlling payingoff, and measuring the elevation of each pile; (3) setting an active well, and receiving and setting a drilling machine; (4) preparing drilling fluid; (5) drilling pilot holes,; (6) adopting the compandor to chambering, cleaning the hole at the same time, and protecting walls with slurry; (7) welding the pipeline; (8) pulling the tube, and simultaneously pulling a steel tube with the same length as that of the tube; (9) casting slip and fixing; (10) mounting tubes; (11) testing pressure and flushing. The invention can effectively increases economical benefit and social benefit, and has the advantages of environmental protection and energy saving.

Description

technical field [0001] The invention discloses a pipe-drawing construction method in the technical field of pipeline laying, in particular a non-excavation pipe-drawing construction method. Background technique [0002] With the continuous improvement of people's living standards, the pace of urban municipal pipe network renovation is accelerating, and the conventional method of laying underground pipes is the open-cut method of laying pipes. However, due to the influence of geography and environment, as well as the obstruction of underground buildings, traffic congestion, and the complex arrangement of underground pipelines, the open-cut method of laying pipes can no longer meet the requirements of construction conditions, and sometimes even cannot be constructed. Contents of the invention [0003] In order to overcome the shortcomings in the above-mentioned prior art, the present invention provides a convenient, fast, non-destructive urban road surface, short constructio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L1/028
Inventor 马晓波展宏宇季政周宇
Owner 江苏广宇建设集团有限公司
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