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The impact of the fissures of water on CROSSLINE tunnel and Integrated Control Technology

Author: LiuWenJian
Tutor: WuXiangBin
School: Central South University
Course: Structural Geology
Keywords: tunnel fracture water inflowing model mechanical analysis the choice of prevention and cure method
CLC: U457.2
Type: Master's thesis
Year: 2005
Downloads: 331
Quote: 15
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Abstract


The paper applies the methods of hydrologic geology and structural geology to summarize hydrogeological conditions about tunnel fracture water, and introduces in detail types of fracture water ,the rule of existence、 the relation of structure and lithology and so on. And then takes construction condition of Huayingshan tunnel as examples to illuminate that. It emphasizingly introduces the condition of hydrologic geology and water quality about Xuefenshan tunnel. The paper also summarizes interactional mechanism between groundwater seepage and wall rock stress to demonstrate the mechanic reasons that the interactions between groundwater and wall rock result in calamities, and chart its calamity relation. It analyzes landslide reasons that its interactions cause in Yuanliangshan tunnel portal.The paper summarizes some geologic predicting methods on tunnel fracture water and estimating methods of flowrate of groundwater. It predicts the inflow yield of Yuanliangshan tunnel, and point to the present major problem on the amount prediction of water pouring. It concludes the inflowing model of triangular prism, and validates that at YK96+054 faultage of Xuefengshan tunnel , in order to demonstrate its applied values .The paper summarizes prevention and cure methods of tunnel fracture water, such as excavation and shoring, waterproof material etc. It sums up some rules on selecting tunnel line and four types of excavation and shoring, and makes use of the theory of fuzzy AHP to establish mathematic model ,and uses it to select certain method of excavation and shoring on F8 faultage of Xuefenshan tunnel. This example shows applied values and disadvantages.

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