Reliability Evaluation and Prediction of Deep Buried Tunnel Based on Similarity Theory and Model Test

Wu, Pengfei; Fang, Zhichun; Wang, Xue; Zhu, Guangyi

doi:10.1007/s12205-023-0386-4

Cited by 5 publications

(2 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…as well as D ′ a,m−1 F a,1 . In Figure 2c,d, the expression for the rate of energy dissipation in velocity discontinuities D a,0 F a,0 as well as D a,0 F a,1 in region A-2 is presented by expression (26).…”

Section: Energy Dissipation Ratementioning

confidence: 99%

“…Wu et al [26] developed a reliability assessment algorithm for deep tunnels which analyzed and predicted the time-dependent reliability of the excavation process of the deeply buried tunnel. Cai et al [27] calculated the complex ground stress through physical model experiments and three-dimensional numerical simulation and researched the non-linear mechanical and strength characteristics of the tunnel excavation in different burial depth rock strata.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Calculation Method for Reliability Index of a Deep–Bedded Karst Tunnel Construction with Cavity Located Ahead of Tunnel Working Face

Wu,

Sun,

Meng

2024

Buildings

View full text Add to dashboard Cite

For the purpose of reliability quantitative assessment of the surrounding rock of the deeply embedded karst tunnel and the geological body around the cavern in the case of the cavern in the forepart of the tunnel face, on the basis of the upper bound limit analysis method, the energy dissipation theory, as well as the reliability theory, the dimensionless performance function of each damage area of the deeply buried karst tunnels could be established in the case of the cavern in the front of the tunnel face. Subsequently, the probability of failure and the reliability index of each damage region of the deep–bedded karst tunnel in the case of the cavern in the front of this tunnel face should be calculated through the Monte Carlo simulation sampling approach. The investigation has demonstrated that the larger the cohesion of the geotechnical body and the larger the internal friction angle within the geotechnical body, the larger the reliability indexes of the geotechnical bodies around the tunnel. The larger the diameter of the cavern and the larger the tunnel burial depth, the greater the probability of failure in the left part of the geotechnical body around this cavern, and the smaller the reliability indexes of these damage areas.

show abstract

Section: Energy Dissipation Ratementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Calculation Method for Reliability Index of a Deep–Bedded Karst Tunnel Construction with Cavity Located Ahead of Tunnel Working Face

Wu,

Sun,

Meng

2024

Buildings

View full text Add to dashboard Cite

show abstract

Experimental and numerical study of the failure mechanism and stability of tunnel linings under different cavity conditions

Liu,

Xie,

Han

et al. 2024

Engineering Failure Analysis

View full text Add to dashboard Cite

Study on formation mechanism of mud-inclusion-type underground debris flows using natural caving method

Niu,

Hou,

Bao

et al. 2024

Sci Rep

View full text Add to dashboard Cite

This study aimed to investigate the formation mechanism of the mud-inclusion-type underground debris flows of natural caving underground mines. The characteristics of fine moraine particles flowing through the coarse-grained ore bed were used to analyze the formation process of mud inclusions in the caving ore bed through a physical model test. Based on the movement behavior of the mud inclusions of moraine in the caving ore bed, a formation-mechanism generalized model of underground debris flows with mud inclusions was established. The model was used to examine the formation mechanism of mud-inclusion-type underground debris flows in natural caving. The results showed that the fine moraine particles had good cross-flow characteristics in the process of drawing coarse-grained ore. The accumulation of fine moraine in the ore bed was a prerequisite for the formation of mud inclusions, and the fluid inclusions were formed by a mixture of the particles with the infiltrated water. When mud inclusions in moraine are affected by many factors, such as ore-drawing vibrations, blasting vibrations, and groundwater, the inclusions undergo multiple migration–stop–migration cycles, resulting in separation or fusion. However, the inclusions are released along the optimal random pore path to the outlet, forming a certain scale of underground debris flows accidents. The accuracy and reliability of the formation mechanism were verified through geophysical explorations based on the equivalent inverse flux transient electromagnetic method. This study not only broadens the research on debris flow, but also provides theoretical guidance for the prevention and control of underground debris flows.

show abstract

Reliability Evaluation and Prediction of Deep Buried Tunnel Based on Similarity Theory and Model Test

Cited by 5 publications

References 32 publications

A Calculation Method for Reliability Index of a Deep–Bedded Karst Tunnel Construction with Cavity Located Ahead of Tunnel Working Face

A Calculation Method for Reliability Index of a Deep–Bedded Karst Tunnel Construction with Cavity Located Ahead of Tunnel Working Face

Experimental and numerical study of the failure mechanism and stability of tunnel linings under different cavity conditions

Study on formation mechanism of mud-inclusion-type underground debris flows using natural caving method

Contact Info

Product

Resources

About