典型文献
Analysis of the Mechanism of Water Inrush Geohazards in Deep-Buried Tunnels under the Complex Geological Environment of Karst Cave-Fractured Zone
文献摘要：
To study the mechanism and evolution process of water inrush geohazards under the complex geological environment of the karst cave-fractured zone, a large-scale physical threedimensional (3D) model test was first performed. Then the conceptual model for the evolution process of water inrush geohazards and the simplified theoretical model for the critical hydraulic pressure were both established based on the main characteristics of the water inrush geohazard in the engineering background and that in the model test. A new method was developed for modeling the geological environment of the karst cave-structural plane, and two formulae describing the critical water pressure of water inrush geohazards under two failure models of tensile-shear fracture failure and compressionshear fracture failure were also deduced based on fracture mechanics. The results showed that: (1) the evolution process of the water inrush geohazard can be divided into four stages, which include the initial balance, the propagation of original cracks, the formation of the dominant water inrush channel, and the instability of the waterproof rock mass; (2) the suddenness of water inrush geohazards becomes stronger with the increase of the hydraulic pressure; (3) the calculated critical hydraulic pressure of water inrush geohazards is similar to the measured critical hydraulic pressure in the model test, which validated the accuracies of the theoretical model, and the failure model of water inrush geohazards in this research is compression-shear fracture failure.
文献关键词：
中图分类号：
作者姓名：
Weishe Zhang;Yuyong Jiao;Guohua Zhang;Xi Zhang;Guangzhao Ou;Zhiping Lin
作者机构：
Faculty of Engineering,China University of Geosciences,Wuhan 430074,China;Fujian Highway Bridge Engineering Co.,Ltd.,Fuzhou 350000,China
文献出处：
引用格式：
[1]Weishe Zhang;Yuyong Jiao;Guohua Zhang;Xi Zhang;Guangzhao Ou;Zhiping Lin-.Analysis of the Mechanism of Water Inrush Geohazards in Deep-Buried Tunnels under the Complex Geological Environment of Karst Cave-Fractured Zone)[J].地球科学学刊（英文版）,2022(05):1204-1218
A类：
Inrush,Geohazards,Fractured,threedimensional,compressionshear
B类：
Analysis,Mechanism,Water,Deep,Buried,Tunnels,under,Complex,Geological,Environment,Karst,Cave,Zone,To,study,mechanism,evolution,process,inrush,geohazards,complex,geological,environment,karst,cave,fractured,zone,large,scale,physical,test,was,first,performed,Then,conceptual,simplified,theoretical,critical,hydraulic,pressure,were,both,established,main,characteristics,engineering,background,that,new,method,developed,modeling,structural,plane,two,formulae,describing,failure,models,tensile,also,deduced,mechanics,results,showed,can,divided,into,four,stages,which,include,initial,balance,propagation,original,cracks,formation,dominant,channel,instability,waterproof,rock,mass,suddenness,becomes,stronger,increase,calculated,similar,measured,validated,accuracies,this,research
AB值：
0.449364
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