TY  - Data
T1  - Crack depth detection data of Goupitan high concrete dam
A1  - Jia Yu
A1  - Wang Yulei
PY  - 2025
DA  - 2025-06-27
PB  - National Cryosphere Desert Data Center
AB  - The depth of concrete cracks is a key indicator of cracking hazards, and accurately determining it is crucial for preventing cracking accidents. However, due to the unique structure of cracks with a large depth - to - width ratio, there is currently a lack of effective methods for accurately measuring crack depth in engineering. This study proposes a new concept: instead of directly detecting the crack tip morphology, it detects the crack tip indicator. We developed a high - permittivity, highly fluid liquid indicator, and customized an indicator injection device and specific - frequency radar antenna. Through radar - based visualization during injection, this method accurately identifies the crack tip position. Using this self - developed technique, we precisely measured the crack depth in the concrete structure of the downstream apron of Goupitan Dam, solving the industry - long - standing problem of accurate crack depth measurement in hard - to - reach areas. The data obtained can support the evaluation and prevention of cracking hazards in Goupitan Dam.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/14b12ac1-c09e-415f-8374-6f3de3d57002
ER  -