Design and Application of Remediation Plan for Heading Slope Landslide in Feilongshan Tunnel Entrance
Authors
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Jinhua Polytechnic, Jinhua 321007 ,CN
Yong-He Yao -
Jinhua Polytechnic, Jinhua 321007 ,CNYan-Hong Wang
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Jinhua Polytechnic, Jinhua 321007 ,CNZhi-Wu Liu
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Zhejiang Normal University, Jinhua 321004 ,CNXin Qiu
Keywords:
Tunnel Entrance, Heading Slope Landslide, Remediation Plan.Abstract
In order to effectively solve the hazards of heading slope landslide of tunnel entrance project in fractured strata, the geological conditions, human activities, meteorology, hydrology, and other factors of Feilongshan tunnel entrance are analyzed; by comprehensively taking into consideration of factors such as the environment, project duration, and safety of the landslide area, this paper proposes comprehensive control measures centered on anti-sliding, and systematically studies the effectiveness of slope-brushing protection, pipe-shed support, counter-pressure backfill mortar rubbles and other measures for controlling heading slope landslide of the tunnel entrance. The on-site monitoring results shows that the change trend of the vector displacement and plane displacement at each measuring point after the remediation is relatively stable, all within the allowable deformation range; the comprehensive remediation plan has clear construction process flow, obvious technical effects, and high construction efficiency and safety. The research results provide a technical basis and reference for the remediation of tunnel entrance landslide in complex and fractured strata.
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