Buried pipeline traction crossing construction method

Abstract

The invention discloses a buried pipeline traction crossing construction method, and belongs to the field of pipeline construction. The buried pipeline traction crossing construction method mainly comprises the following steps that S1, a soil entry point and a soil outlet point are determined according to a design drawing and actual investigation; S2, a pipeline with a required length is preparedaccording to the drilling track design of the design drawing; and S3, a pilot hole is drilled, wherein drill bit jet assistance is utilized for drilling. The method well adapts to different laying pipeline design depths and different construction site conditions; a pipeline traction track is accurate and high in precision, and design requirements are met; in the whole construction process, the position and buried depth of the pipeline can be determined at any time on the ground, the working safety requirement of the pipeline is met, the drilling design track is smooth, a curved section is smooth, the method is suitable for underground pipeline traction crossing construction of a section complex in underground pipeline network distribution, it is ensured that pipeline construction is successful, and the method is also suitable for complex geological structures such as sneck and backfilling soil.

Description

technical field [0001] The invention relates to the technical field of pipeline construction, in particular to a construction method for traction and crossing of buried pipelines. Background technique [0002] In recent years, due to social development, old city reconstruction, new rural construction, etc., the demand for heat supply and the quality of heat supply have been continuously improved, resulting in the continuous expansion and reconstruction of the municipal heating pipe network; laying the heat supply pipe network underground , is bound to cross roads or rivers. If traditional road excavation is used, the overhead construction above the river will not only affect the traffic, but also require a lot of manpower and material resources to find out the specific positions of the existing pipelines on both sides of the road, which is time-consuming and labor-intensive. Conducive to the control of the construction period. [0003] The application number in the prior ar...

AI Technical Summary

Problems solved by technology

[0002] In recent years, due to social development, old city reconstruction, new rural construction, etc., the demand for heat supply and the quality of heat supply have been continuously improved, resulting in the continuous expansion and reconstruction of the municipal heating pipe network; laying the heat supply pipe network underground , is bound to cross roads or rivers. If traditional road excavation is used, the overhead construction above the river will not only affect the traffic, but also require a lot of manpower and material resources to find out the specific positions of the existing pipelines on both sides of the road, which is time-consuming and labor-intensive. Conducive to the control of the construction period

[0003] The application number in the prior art is 99115006.6, which disclosed the construction method of drilling traction casing crossing on 2003-07-23, which belongs to the technical field of construction methods for laying underground casings. The technical problem to be solved is to provide a method that adopts rotary drilling And the construction method of pulling the casing, the technical solution to solve the technical problems is as follows: including excavating the operation pit and the receiving pit, installing a drilling machine in the operating pit to drill the guide hole to the receiving pit, and installing a reamer on the drilling tool along the guide hole. The hole is reamed from the receiving pit to the operation pit to form a traction hole and pull back the traction wire rope. Install the tractor in the reception pit to pull the traction wire rope, and pull the laid casing along the traction hole from the operation pit to the reception pit. There are four processes in total. , the present invention is applied to the crossing construction of pipelines passing through various geological conditions, and its beneficial effect is that large-scale machinery is not required, the construction amount is small, the cost is low, and the project quality is high; Inferior complex geological structures also require groundwater prevention and reinforcement measures for soft soil layers, and the underground pipelines in the complex distribution of underground pipelines are not convenient for construction, and the overall construction is difficult