Construction method of gas pipeline crossing river bottom

A technology for gas pipelines and construction methods, applied in pipeline systems, pipeline laying and maintenance, pipes/pipe joints/fittings, etc., can solve problems such as increasing construction difficulty, hidden safety hazards, difficulty in adoption, and large drop, and achieve the quality of pipeline connection. Good, small damage, easy to operate effect

Active Publication Date: 2021-06-22
呼和浩特中燃城市燃气发展有限公司
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the pipe jacking construction does not require a large amount of earth excavation, due to the large drop, the access must be below the river surface. It is necessary to excavate two deep pits with a depth of 30 meters, and take anti-collapse protection measures for the deep pits. Construction difficulty and potential safety hazards, and the 30-meter-deep pipe jacking operation must be implemented effectively by a very professional unit, and the investment is huge, so this solution is also difficult to adopt

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Construction method of gas pipeline crossing river bottom
  • Construction method of gas pipeline crossing river bottom
  • Construction method of gas pipeline crossing river bottom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] The features and technical effects of the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and in conjunction with schematic embodiments, and a construction method that can efficiently and safely allow gas pipelines to pass through the river bottom is disclosed. It should be pointed out that similar reference numerals represent similar structures, and the terms "first", "second", "upper", "lower" and the like used in this application can be used to modify various structures. These modifications do not imply a spatial, sequential or hierarchical relationship to the modified structure unless specifically stated.

[0047] In the preferred embodiment of the present invention, the specific construction scheme is described by taking the construction scheme of the Jinsheng Road gas pipeline crossing the Xiaohei River in Hohhot, Inner Mongolia as an example. The project is located in the south of Jinqiao G...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
pore sizeaaaaaaaaaa
pore sizeaaaaaaaaaa
surface roughnessaaaaaaaaaa
Login to View More

Abstract

The invention provides a construction method of a gas pipeline crossing a river bottom. The construction method of the gas pipeline crossing the river bottom comprises the following steps of S1, carrying out measuring and positioning to determine position parameters of the gas pipeline crossing the river bottom; S2, burying a plurality of soil layer detectors for measuring soil layer state parameters of the gas pipeline crossing the river bottom; S3, according to the position parameters and the soil layer state parameters, selecting and excavating a working pit and a receiving pit in the ground; S4, drilling machine being in place; S5, preparing slurry; S6, carrying out trial drilling; S7, drilling a guide hole; S8, carrying out back reaming; S9, dragging a pipe back, and dragging the multiple sections of gas pipelines to the receiving pit from the working pit; S10, carrying out on-site slurry treatment; S11, carrying out earthwork backfilling; and S12, building a valve well. Non-excavation horizontal directional drilling and pipe drawing construction is adopted, the environment is not polluted, traffic is not affected, the construction period is short, the comprehensive cost is low, the construction cost is saved, the construction period is shortened, and potential safety hazards are avoided.

Description

technical field [0001] The invention relates to the field of gas pipeline laying, in particular to a construction method for a gas pipeline crossing a river bottom. Background technique [0002] The urban underground gas pipeline network refers to the system composed of all facilities from the gate station to the user, including the gate station or factory pressure compressor, gas storage facilities, pressure regulating devices, transmission and distribution pipelines, metering devices, management facilities, monitoring systems, etc. These gas pipelines are usually buried underground to isolate the corrosion of pipelines by external oxygen and moisture, thereby improving the safety of gas supply. Therefore, during the laying process of gas pipelines, they often encounter scenarios with various other pipelines or geological conditions, such as running parallel or crossing with tap water, power supply, and communication networks, or needing to cross rivers, subways, culverts, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityApplications(China)
IPC IPC(8): F16L1/16F16L1/20F16L58/10F17D5/00
CPCF16L1/165F16L1/20F16L1/161F16L58/109F17D5/005
Inventor于斌尹生开崔庆春高艳秋
Owner呼和浩特中燃城市燃气发展有限公司