Dynamic Evaluation Method of the EW-AHP Attribute Identification Model for the Tunnel Gushing Water Disaster under Interval Conditions and Applications

Wu, Bo; Chen, Huihao; Huang, Wei; Meng, Guowang

doi:10.1155/2021/6661609

Cited by 4 publications

(3 citation statements)

References 9 publications

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“…The entropy method is used to determine the index weight according to the variation degree of the index value, which is an objective weighting method and avoids the deviation caused by human factors [21][22]. Therefore, this method was adopted for decisionmaking and indicator scoring, such as evaluation of soil erosion vulnerability [23], tunnel gushing water disaster assessment [24], measuring water security assessment [25]. Compared with those subjective assignment methods, it is more accurate and objective and can better explain the obtained results.…”

Section: Introductionmentioning

confidence: 99%

Risk Assessment of Shield Tunnel Construction in Coastal Areas

Huang,

2024

Pol. J. Environ. Stud.

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The coastal areas are the most economically developed, and they need to build many infrastructures such as airports, ports, and subways. However, the complex geological conditions in the coastal areas pose risk issues to the construction. In response to the characteristics of the high risk of subway shield tunneling, we proposed a new method to evaluate the safety of subway shield tunneling by using the entropy weight method and the matter-element theory. In addition, we built a safety evaluation index system with 52 evaluation indexes, including workers, machinery, materials, technology, environment, etc. Accordingly, using the entropy value method, we calculated the weight of each index and built the classical domain with the matter-element theory. Then, combining the joint domain with the evaluation of the main factors, we calculated the risk correlation degree. Moreover, we established the safety assessment model. Taking the coastal tunnel between the Hujing Station and Wanshou Station of Fuzhou metro line 6 as an example, we validated the evaluation model and assessed the risk of the coastal tunnel. The result demonstrates that the total construction safety risk level is low. But the environmental factors are very crucial; the highest is the embankment collapse C523, and its proportion is 8.14%. It is necessary to measure deformation and reduce the environmental risks of construction. The case study can provide a very valid reference for some similar coastal projects.

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Section: Introductionmentioning

confidence: 99%

Risk Assessment of Shield Tunnel Construction in Coastal Areas

Huang,

2024

Pol. J. Environ. Stud.

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“…Meanwhile, tunnel construction also has specific features, such as various types of engineering works, frequent changes of operating personnel, a poor operating environment, unstable operating sites, climatic factors, geometric and environmental factors, and the variation of hazards as a project progresses. In past research, there have been much discussion on landslides, (1) fires, (2) and floods (3) in construction projects but less discussion on the monitoring of harmful gases in tunnels during their construction. Therefore, it is especially important to choose a qualified supplier of systems for sensing hazardous gases.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Procurement of Environment Monitoring Equipment for Tunnel Construction

Hsu¹,

Ouyang²,

Dong³

et al. 2022

Sensors and Materials

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Railway and highway traffic projects inevitably require a large number of tunnels to pass through hills or mountains due to the complex topographic conditions. Accordingly, tunnel construction increases in proportion, scale, and number and becomes increasingly important. In this study, we reviewed the key factors of the monitoring system for the working environment in tunnel construction. The evaluation criteria for the procurement of environment monitoring equipment for tunnel construction were established and summarized on the basis of engineering cases and a literature review. Then, an evaluation scale to assess the weights of key factors was established through the Analytic Hierarchy Process (AHP), which includes four evaluation dimensions, 13 sub-level evaluation criteria, and their weights. Finally, three suppliers of construction environment monitoring equipment were selected for empirical analysis. The research results verified the effectiveness of the evaluation scale, which can provide a systematic evaluation mode for government engineering units to select the environment monitoring equipment for future construction.

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“…Wang et al [47] proposed a dynamic risk assessment method based on a Bayesian network in view of the shortcomings of the risk assessment of deeply buried tunnels. Wu et al [48] established a dynamic risk assessment system, including pre-and post-evaluation models, by using the attribute recognition model and performed risk analysis on sections in tunnels with a high risk of water inrush.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Risk Assessment of Ultra-Shallow-Buried and Large-Span Double-Arch Tunnel Construction

Wang

Cao

et al. 2021

Applied Sciences

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Ultra-shallow-buried and large-span double-arch tunnels face complex risks during construction. The risk sources are hidden, complicated, and diverse. The dynamic risk assessment problem cannot be solved satisfactorily by using the static method as an insufficient amount of research has been conducted. The land part of the Xiamen Haicang double-arch tunnel was selected as the background for the dynamic risk assessment of ultra-shallow-buried and large-span double-arch tunnel construction. The construction process was divided into five stages: pre-construction preparation; ground and surrounding rock reinforcement; pilot tunnel excavation; and the single-and the double-tunnel excavations of the main tunnel. Through consultation with tunnel experts, six first-level and thirty second-level risk evaluation indexes were proposed. The benchmark weight of the dynamic risk assessment index was determined by using the analytic hierarchy process. The weight of the risk evaluation index was revised according to the monitoring data and the construction stage. The fuzzy evaluation matrix of the construction risk membership degree was obtained by using the fuzzy comprehensive assessment method, and the calculation results were analyzed using the subsection assignment method. Control measures were suggested according to the risk assessment results. The risk assessment result of the double tunnel excavation stage of the main tunnel was level II, and the risk level was the highest among the five construction stages. The risk assessment result of the ground and surrounding rock reinforcement stage was level IV, and the risk level was the lowest. The dynamic construction safety risk assessment based on the fuzzy comprehensive assessment method is more timely, accurate, and reasonable than the traditional assessment method. The method can be adopted in similar engineering projects.

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Dynamic Evaluation Method of the EW-AHP Attribute Identification Model for the Tunnel Gushing Water Disaster under Interval Conditions and Applications

Cited by 4 publications

References 9 publications

Risk Assessment of Shield Tunnel Construction in Coastal Areas

Risk Assessment of Shield Tunnel Construction in Coastal Areas

Evaluation of Procurement of Environment Monitoring Equipment for Tunnel Construction

Dynamic Risk Assessment of Ultra-Shallow-Buried and Large-Span Double-Arch Tunnel Construction

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