Risk Analysis of Water Inrush into Karst Tunnel Using Fuzzy Comprehensive Evaluation Method

Ge, Yanhui; Li, Shucai; Zhang, Qingsong; Lu, Wei

doi:10.1109/iwisa.2009.5073097

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…In recent years, there have been more than 100 cases of mud-water burst observed in the southwest mountain, especially in Karst areas, such as Yunnan, Guizhou, and Sichuan, causing serious losses of human life and property and deterioration of construction conditions [19][20][21][22]. e fractured rock masses in Karst zones as a complex and widespread geological conditions in China, it is extremely easy to induce geologic hazard especially mud-water gushing when the underground engineering goes through it [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Mud-Water Inrush Characteristics through Rock Fractures

Zhao

Zhang

2018

Advances in Civil Engineering

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Fractured rock masses, which are widely distributed in the south of China, have an impartible relationship with mud-water inrush. In order to study the change laws of mud viscosity under different moisture content, flow property, and mechanism of mud-water inrush in fractured rock masses, a NDJ-8S rotary viscometer and a simulation model are used to carry out a series of experimental studies. Tests of mud viscosity show that mud viscosity depends on moisture content, and the relationship between viscosity and moisture content was proposed. Based on mud viscosity results, physical model tests' results indicated that the process of mudwater rush can be divided into four stages: that is, the preparation stage of mud-water mixture burst, the seepage period of mudwater mixture inrush, the nonstable period of mud-water mixture outburst, and the stable period of mud-water mixture outburst. e excavation disturbance, high water pressure, and effect of erosion and corrosion of water were identified as key factors which lead to mud-water inrush in fractured rock masses

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Section: Introductionmentioning

confidence: 99%

Experimental Study on the Mud-Water Inrush Characteristics through Rock Fractures

Zhao

Zhang

2018

Advances in Civil Engineering

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“…Vicari et al [14] provided an excellent means for assessing the hazard posed by ongoing effusive eruptions. For tunneling, attribute synthetic evaluation [15] and fuzzy mathematics [16][17][18] were used to assess the risk of water inrush in karst tunnels. Abdolreza [18] proposed a new methodology based on fuzzy logic for tunneling risk assessment.…”

Section: Introductionmentioning

confidence: 99%

Decision-Making Model under Risk Assessment Based on Entropy

Dong

Lü

Xia

et al. 2016

Entropy

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Decision-making under risk assessment involves dealing with the matter of uncertainty, especially in projects such as tunnel construction. Risk control should include not only measures to reduce the possible consequence of incident, but also exploration measures (information collecting measures) to reduce the uncertainty of the incident. The classical risk assessment model in engineering is R = P × C which only takes account of the assessment and decision-making of possible consequences. It cannot provide theoretical guidance for taking exploration measures. The paper presents an advanced methodology to assess the effectiveness of exploration measures in decision-making. The methodology classifies risk into two attributes: hazard (expected value) and uncertainty (entropy). On this basis, a generalized model of decision-making under risk assessment is proposed. This model extends the use of the classical assessment model to a more general case. The reason for taking exploration measures and assessment of such measures' effectiveness could be explained well by this developed model. This model can also serve as a descriptive model for many risk problems and provide a decision-making basis for a variety of risk types. Moreover, the assessment process and calculation method are applied with some case studies.

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Risk assessment of water inrush in karst tunnels based on fuzzy comprehensive evaluation considering misjudgment losses: a case study

Sun

Guo

et al. 2022

Arab J Geosci

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Risk Analysis of Water Inrush into Karst Tunnel Using Fuzzy Comprehensive Evaluation Method

Cited by 3 publications

References 3 publications

Experimental Study on the Mud-Water Inrush Characteristics through Rock Fractures

Experimental Study on the Mud-Water Inrush Characteristics through Rock Fractures

Decision-Making Model under Risk Assessment Based on Entropy

Risk assessment of water inrush in karst tunnels based on fuzzy comprehensive evaluation considering misjudgment losses: a case study

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