Slim pilot pipe grouting technology for the Zhenhe to Jianhe Water Diverting Tunnel Project in Xin’an County
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1.Henan Geological Environment Survey Institute;2.Henan Geology and Mineral Construction Engineering (Group) Co., Ltd.

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U455

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    Abstract:

    The excavation depth of the No.3 shaft on the Zhenhe to Jianhe Water Diverting Project in Xin’an County was large, where groundwater was extremely rich with water gushing and flooding. Slim pilot pipe grouting was taken to seal off seepage and gushing within 2 times the shaft diameter of the gushing point with a dual fluid made of cement and sodium silicate mortar. With grouting before excavation, the tunnel excavation was successfully completed, which can provide experience for the construction of similar projects.

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History
  • Received:August 29,2019
  • Revised:October 22,2019
  • Adopted:October 23,2019
  • Online: November 06,2019
  • Published:
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