Application of microgravity measurement in detecting underground structures

ZHANG Yanguo; LIU Zhenwang; TONG Liming

doi:10.20265/j.cnki.issn.1007-2993.2025-0166

Volume 40 Issue 3

Jun. 2026

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ZHANG Yanguo, LIU Zhenwang, TONG Liming. Application of microgravity measurement in detecting underground structures[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2026, 40(3): 418-422. doi: 10.20265/j.cnki.issn.1007-2993.2025-0166

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ZHANG Yanguo, LIU Zhenwang, TONG Liming. Application of microgravity measurement in detecting underground structures[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2026, 40(3): 418-422. doi: 10.20265/j.cnki.issn.1007-2993.2025-0166

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Application of microgravity measurement in detecting underground structures

doi: 10.20265/j.cnki.issn.1007-2993.2025-0166

Tianjin North China Survey and Design Institute Co., Ltd., Tianjin 300181, China

Received Date: 2025-04-10
Accepted Date: 2025-08-25
Rev Recd Date: 2025-08-11

Available Online: 2026-06-08

Publish Date: 2026-06-08

Abstract

Abstract

It is necessary to detect the location and scale of underground structures remaining on the site before engineering investigation or foundation treatment. However, when there are various unfavorable factors such as a large amount of construction waste, old foundations, and electromagnetic interference in the site, it can limit the application of some commonly used geophysical detection methods. The microgravity measurement method has low requirements for the observation site and has significant advantages in detecting underground mass anomalies. This research uses CG-5 high-precision gravity meter to detect the original underground equipment room of a machinery factory in Tianjin. After data processing and analysis, the location and rough plane distribution of the original underground equipment room were determined, providing a basis for subsequent engineering surveys and foundation processing. At the same time, experience has been accumulated for the detection of shallow buried underground structures in the same type of site.
- engineering investigation,
- microgravity measurement,
- underground structures,
- detection

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References

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Application of microgravity measurement in detecting underground structures

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