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Tunnel Construction. 2022, (02) Core

Effect of Soil Con ditioner under Conditions of Shield Mud Cake Blockage in Strongly-Weathered Mixed Granite StrataChinese Full Text

ZHOU Kaige;FANG Yong;LIAO Hang;WANG Kai;SONG Tiantian;Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University;Shenzhen Metro Group Co., Ltd.;

Abstract: Shield tunneling in strongly-weathered granite encounters mud cake on cutterhead, water and slurry gushing,and tunnel face instability. Therefore, the soil should be improved. The three soil conditioning methods, i.e., moisture content optimization, dispersing agent injection, and foaming agent injection, are adopted to improve the stronglyweathered granite in the Liuxiandong station-Baimang station of the Shenzhen metro line 13 using a self-developed soilgenus interface adhesion tester. The con... More
Keywords：

shield tunnel; granite stratum; soil conditioning; interfacial adhesion; moisture content optimization; foaming agent; dispersing agent;

  • Series：

    (C) Architecture/ Energy/ Traffic/ Electromechanics, etc

  • Subject：

    Railway Transportation; Highway and Waterway Transportation

  • Classification Code：

    U455.43;U231.3

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