Array passive source surface wave method for underground pipeline detection
By utilizing the array-type passive source surface wave method and urban background noise and a vibration pickup array, the problem of detecting deep-buried non-metallic pipelines in urban environments has been solved. This method enables rapid and accurate identification of pipeline location and burial depth, avoiding damage to urban roads.
CN117784273BActive Publication Date: 2026-05-29SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
- Filing Date
- 2023-12-12
- Publication Date
- 2026-05-29
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Figure CN117784273B_ABST
Abstract
The application discloses an array passive source surface wave method for underground pipeline detection, uses city background noise as a seismic source, collects the background noise through a vibration pickup, extracts a dispersion curve, and inverts to obtain a transverse wave velocity structure of underground medium at a center point of an observation array, so that the detection purpose is achieved, and the array collection mode can realize one-time layout to realize collection and extraction of three-dimensional results at multiple points. The method provides a better solution scheme for the characteristics of complex urban ground conditions and high accuracy requirements, has the advantages of high detection efficiency, strong environmental adaptability, high stability, large detection depth and the like, and effectively solves the industry problem of nondestructive detection of large-buried nonmetal underground pipelines with a buried depth of 5m-30m and a pipe diameter greater than 0.5m.
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