Case Study | Application of Shallow Underground Cavity Detection
Jul 15,2025
Location: Hebei
Task: Subway tunnel micro-tremor detection
Time: 2024.11.4-11.7
Weather: Sunny
Equipment: Guowei UGL-3C
Parameters: Micro-tremor 5*20 array, point spacing 2 meters, line spacing 3 meters, depth measurement 50 meters
Field Picture:
Data processing results
The red circle in the above figure is a low-speed closure anomaly, which is located at 5-15 meters along the survey line and at a depth of about 25 meters. It is speculated that the subway line passes through it. The depth and position of the anomaly are basically consistent with the actual situation.
The above is a three-dimensional result display. The detection results of this operation are basically consistent with the known data. The location, size, depth, etc. of the underground structure are relatively accurate. The detection accuracy meets actual needs and has been highly praised by customers.
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