Method for performing accurate positioning in new fuel gas pipe jacking

Abstract

The invention discloses a method for performing accurate positioning in new fuel gas pipe jacking. The method includes the following steps: positioning a new pipe and positioning pipe replacement construction, specifically conducting 3D coordination positioning on the pre-embedded position in pipe jacking by using a GPS positioning device, transmitting the data maintenance of a position point layout map and a measurement list to a GIS system; determining a target pipe position in the GIS system and arranging identifiers; and providing the positions and buried depth value of the identifiers tomonitoring workers in the pipe replacement construction, thus completing construction handover. According to the invention, the method can position 3D coordinate data by using GPS technology in crossing construction, has the characteristics of only, accurate and permanent data, and can increase data accuracy from the source; the method can perform pipe exploration without having to terminate the supply of fuel gas by disconnecting the fuel gas pipe, and does not influence a user's normal usage; and the method makes the handover of the pipe replacement construction more rapid and data more accurate.

Description

technical field [0001] The invention belongs to the technical field of gas pipeline construction, and in particular relates to a method for accurately positioning a new gas pipe jacking. Background technique [0002] The positioning of the gas pipe jacking in the prior art mainly takes the following steps: determine the position and depth of the pipeline according to the three-dimensional positioning data on the drawings of the completion data of the pipe jacking; During the busy construction, Radiodetection instruments are used to detect and locate the depth and position of the pipeline; when the drawing or Radiodetection inspection cannot confirm the pipe position, apply for sawing off the target pipeline, insert the probe into the pipeline, and re-position the probe. [0003] However, there are some problems and shortcomings in the existing technology: the completion data of pipe jacking is not handed over in time, the data accuracy is not high or the paper data is lost; ...

AI Technical Summary

Problems solved by technology

[0003] However, there are some problems and shortcomings in the existing technology: the completion data of pipe jacking is not handed over in time, the data accuracy is not high or the paper data is lost; Find the detection access in time; Radiodetection’s detection accuracy of the pipe jacking is within 3 meters of the buried depth, and the data detected beyond 3 meters is inaccurate; applying for breaking the gas pipeline and then using the probe requires shutting down the gas and removing it. It will affect the normal gas consumption of downstream users and cause unnecessary losses