Method for detecting burial depth of underground pipeline through cross-hole ultrasonic method

Abstract

The invention relates to a method for detecting the burial depth of an underground pipeline through a cross-hole ultrasonic method, and relates to the technical field of geotechnical engineering, andthe method comprises the steps: S1, preliminarily detecting the position and burial depth of the underground pipeline; S2, conducting hole forming through a drilling machine, and drilling holes in thetwo sides of the underground pipeline; S3, burying acoustic pipes, burying the two acoustic pipes in drill holes in the two sides of the underground pipeline in a one-to-one correspondence mode, wherein the acoustic pipes are parallel to each other; S4, measuring points, namely selecting a plurality of sound measuring points along the axial direction of the sound measuring tubes, respectively placing a receiving transducer and a transmitting transducer of the ultrasonic detection analyzer into the two sound measuring tubes, and measuring the ultrasonic sound velocity and wave amplitude of theplurality of sound measuring points; and S5, calculating the depth of the underground pipeline, generating an ultrasonic wave train diagram by taking the sound measuring point as a longitudinal axisand taking the sound velocity and the wave amplitude corresponding to the sound measuring point as a transverse axis, and calculating the burial depth of the underground pipeline according to the ultrasonic wave train diagram. The method has the advantages of being wide in application range and capable of detecting the burying depth of the underground pipeline with the large burying depth.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a method for detecting the buried depth of an underground pipeline by a trans-hole ultrasonic method. Background technique [0002] Underground pipelines are regarded as the lifeline of the city and an important infrastructure of the city. It is responsible for the work of transmitting information, transporting energy and discharging waste liquid. Today's cities are basically developing towards functional cities, and the density of underground pipelines can also reflect the level of a city's functionality from one aspect. Due to historical reasons, the distribution of underground pipe networks in many cities in my country is unclear, and the management of archives is not standardized enough. Some factories and mines have laid underground pipe networks without even as-built drawings. All of the above bring many difficulties to the construction and transformation ...

AI Technical Summary

Problems solved by technology

[0008] The above-mentioned prior art solutions have the following defects: the above-mentioned various geophysical prospecting methods have certain effects, but the application of each method has certain limitations, especially for the correct detection of various pipelines with a buried depth greater than 5m The problem of buried depth is the lack of effective geophysical prospecting methods and technologies

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