Volume 37 Issue 4
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Hou Junwei, Zuo Libing, Xu Wenteng. A Reservoir Protection Engineering Case of Navigation and Power Junction Project[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2023, 37(4): 386-391. doi: 10.3969/j.issn.1007-2993.2023.04.002
Citation: Hou Junwei, Zuo Libing, Xu Wenteng. A Reservoir Protection Engineering Case of Navigation and Power Junction Project[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2023, 37(4): 386-391. doi: 10.3969/j.issn.1007-2993.2023.04.002
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A Reservoir Protection Engineering Case of Navigation and Power Junction Project

doi: 10.3969/j.issn.1007-2993.2023.04.002

  • CCTEG Chongqing Engineering Co., Ltd., Chongqing 400016, China

  • Received Date: 2022-04-26
  • Accepted Date: 2022-12-09
  • Rev Recd Date: 2022-06-23
  • Publish Date: 2023-08-08
    Abstract
  • The right side of the hub project reservoir area is adjacent to an abandoned coal mine. There are abandoned goafs and coal tunnels within the inundation line of the storage area. After impoundment of navigation power junction, the reservoir water may leak into the goafs through exposed coal tunnels and bank slope rock fractures, affecting the normal water storage in the area. Through various engineering survey methods such as surveying and mapping, geological drilling, and geophysical exploration (high-density electrical method), the distribution positions of coal seams, goafs, and coal tunnels were identified. A protection plan combining grouting and sealing of abandoned coal tunnels, anti-seepage curtains, and anti-seepage retaining walls was developed and implemented. The effectiveness of anti-seepage engineering has been verified through experiments, ensuring the safety of normal water storage in the reservoir area, which has certain reference significance for similar projects.

     

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