Volume 36 Issue 1
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Gu Jinyong, Wang Hong. Application of Cross Hole Sonic Wave Method in Rock Mass Detection of Dam Site of a Reservoir[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2022, 36(1): 43-48. doi: 10.3969/j.issn.1007-2993.2022.01.008
Citation: Gu Jinyong, Wang Hong. Application of Cross Hole Sonic Wave Method in Rock Mass Detection of Dam Site of a Reservoir[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2022, 36(1): 43-48. doi: 10.3969/j.issn.1007-2993.2022.01.008
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Application of Cross Hole Sonic Wave Method in Rock Mass Detection of Dam Site of a Reservoir

doi: 10.3969/j.issn.1007-2993.2022.01.008

  • Guizhou Provincial Water Conservancy Research Institute, Guiyang 550001, Guizhou, China

  • Received Date: 2020-11-09
  • Publish Date: 2022-02-16
    Abstract
  • The cross hole sonic wave detecting technology is an important method for concrete inspection. To study the development of joints and fissures, rock properties and distribution of the rock mass in the dam site area of Xiababi Reservoir, three boreholes in each of the two locations in the dam site area were selected. Cross hole sonic wave detection technology was used to test the sonic wave velocity of rock mass. The test results show that the basic rock mass organization structure of the horizontal section of the dam site is partially damaged. The longitudinal wave velocity of the rock mass is generally 2000～4000 m/s. The weathering cracks of the rock mass are developed and relatively broken. There are cracks, broken zones and local weak interlayers. The research results could provide data support for the evaluation of the integrity of the foundation rock mass of the dam site, and provide a detailed and reliable basis for solving the stability and leakage problems of the dam site.

     

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