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:

quality geological survey equipment
quality geological survey equipment

 

Data processing results

quality geological survey equipment
quality geological survey equipment

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.

quality geological survey equipment
quality geological survey equipment
quality geological survey equipment
quality geological survey equipment

 

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.

 

Hefei Guowei Electronics Co.Ltd
is a high-tech enterprise specialized in geophysical exploration devices’ research and development, production and sales, also provide technology support for worldwide customers.  

 

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