A Cloud Model-Based Risk Assessment Methodology for Tunneling-Induced Damage to Existing Tunnel

Xu, Tianhong; Song, Zhanping; Guo, Desai; Song, Yuncai

doi:10.1155/2020/8898362

Cited by 6 publications

(4 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ref: [92] Determination of the Groove Dimension Initial Design of the Rubber Gasket shape Ref: [92] Selection of practical rubber gaskets Ref: [92] Evaluation of groove shear capacity…”

Section: Selection Of Design Criteriamentioning

confidence: 99%

State-of-the-Art Review on Failure Mechanism and Waterproofing Performance of Linings for Shield Tunnels

Tang

2022

Advances in Civil Engineering

View full text Add to dashboard Cite

The introduction and development of shield tunnels have led to the innovation of precast segmental linings, which has significant advantages in improving the construction speed compared with in-situ cast concrete linings. However, damage of the linings and water leakage at the lining joints highlight defects in the design and construction of the linings. In this regard, it is necessary to investigate the failure mechanism of linings for shield tunnels and evaluate the waterproofing performance and repercussions of lining joints. The relevant research results published in recent years are reviewed in this paper, focusing on the failure mechanisms of linings and the waterproofing performance of lining joints. Progressive failure and instability of linings are introduced. Progressive failure has three stages: initial elastic stage, local damage stage, and overall failure stage. The performance-based design of joint waterproofing is described in seven steps. Further opportunities for the investigation of this topic are discussed.

show abstract

“…Ref: [92] Determination of the Groove Dimension Initial Design of the Rubber Gasket shape Ref: [92] Selection of practical rubber gaskets Ref: [92] Evaluation of groove shear capacity…”

Section: Selection Of Design Criteriamentioning

confidence: 99%

State-of-the-Art Review on Failure Mechanism and Waterproofing Performance of Linings for Shield Tunnels

Tang

2022

Advances in Civil Engineering

View full text Add to dashboard Cite

show abstract

“…Sadhan et al (2018) utilized AHP, Knowledge Driven, Fuzzy Logic, and Logistic Regression Four models to predict flood-prone areas. Xu et al (2020) proposed a cloud model-based FAHP for risk assessment of tunnels. Moreover, Alireza et al (2021), Shahab et al (2020), Indrajit et al (2020, Guo et al (2022), Zhao et al (2021), Song et al (2021)and other researchers combined methods such as machine learning, Numerical simulation, and the N-K model with FAHP approach to broaden its application scope.…”

Section: Introductionmentioning

confidence: 99%

Risk assessment of deep excavation construction based on combined weighting and nonlinear FAHP

et al. 2023

Self Cite

View full text Add to dashboard Cite

Deep excavation construction safety has become a challenging and crucial aspect of modern infrastructure engineering, and its risk assessment is frequently carried out using the Fuzzy Analytic Hierarchy Process (FAHP). However, when using FAHP to evaluate the risks of deep excavation construction, the results of the weightings obtained through subjective weighting are heavily influenced by the subjective factors of the evaluators. In addition, using linear operators to calculate the risk level can easily cause a weakening effect on the influence of prominent risk factors, resulting in poor rationality of the evaluation results. To address these problems, this paper constructs a deep excavation construction risk evaluation model based on combined weighting and nonlinear FAHP. The WBS-RBS method is used to guide the construction of the risk evaluation index system for deep excavation construction. The combined weighting values of subjective and objective weightings are calculated through the game theory combined weighting method. The fuzzy relation matrix is constructed using the membership degree vector obtained from the expert evaluation method. Nonlinear operators are introduced for comprehensive calculation. According to the maximum membership degree principle, the final risk level of the excavation construction is obtained. The newly constructed model is applied to the risk analysis of the deep excavation construction of the Rongmin Science and Innovation Park project in Xi’an. The evaluation result for the excavation construction risk is N= [0.3125, 0.3229, 0.1939, 0.0854, 0.0854], and according to the maximum membership degree principle, the risk level of the excavation is classified as Level 2, which is a relatively low risk. Based on the deep excavation construction of the Rongmin Science and Innovation Park project, this paper discusses the differences between the new model and the traditional FAHP evaluation method, further verifies the reliability of the new model, optimizes the construction plan based on the evaluation results, avoids risks, and determines its guiding significance.

show abstract

“…In this method, the subjectivity arised in expert weighting method is avoided, and the randomness and uncertainty in risk assessment process is considered. A risk assessment system is constructed using FAHP method based on a cloud model of tunnel construction as suggested by Xu et al [18] . In this method, uncertainties such as fuzziness and randomness in risk assessment system are considered.…”

Section: Introductionmentioning

confidence: 99%

Construction Risk Assessment of Super- Large-Diameter Shield Tunnel in Karst Area Based on FAHP-TOPSIS Method

Wang¹,

Xifeng

Yong

et al. 2023

Preprint

View full text Add to dashboard Cite

In recent years, construction accidents happen frequently in shield tunnel crossing karst caves due to the complex karst geological structure. These are more obvious in super-large-diameter shield tunnel during construction. In the past, the results of risk assessment tended to be subjective since these reviews were mainly based on experience. A super-largediameter tunnel model is constructed by using calculation principle of FAHP-TOPSIS method based on quantitative analysis and objective weighting method to conduct risk assessment in karst area based on risks evaluated in a shield tunnel project under construction in a city. The risk classification is formulated, and the risk assessment system for a super-large-diameter shield tunnel under construction in karst area is developed to perform computation for assessment. The results show that the closeness of the construction risk for shield tunnel with super-large-diameter crossing the karst area is 0.034, and the risk level is V, that is, high risk, which brings great potential safety hazard to tunnel construction. The computation results are consistent with those of site conditions to verify the feasibility and effectiveness of the method. The results have provided reference for the risk assessment of similar engineering practice under construction.

show abstract

A Cloud Model-Based Risk Assessment Methodology for Tunneling-Induced Damage to Existing Tunnel

Cited by 6 publications

References 15 publications

State-of-the-Art Review on Failure Mechanism and Waterproofing Performance of Linings for Shield Tunnels

State-of-the-Art Review on Failure Mechanism and Waterproofing Performance of Linings for Shield Tunnels

Risk assessment of deep excavation construction based on combined weighting and nonlinear FAHP

Construction Risk Assessment of Super- Large-Diameter Shield Tunnel in Karst Area Based on FAHP-TOPSIS Method

Contact Info

Product

Resources

About