Two- and three-dimensional stability analysis of underground storage caverns in soft rock (Cappadocia, Turkey) by finite element method

Sarı, Mehmet

doi:10.1007/s11629-021-7047-1

Cited by 5 publications

(2 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The on-site construction of underground caverns is a step-by-step process, and the deformation and failure of surrounding rock are affected by various factors. Many studies have used numerical methods to verify or predict the stability of underground caverns (Sari, 2022;Vo et al, 2022). However, since the mechanical parameters of the surrounding rock used in numerical simulations are often empirical or measured in the laboratory and differ from the actual situation in the field, it will inevitably lead to a certain degree of inaccuracy.…”

Section: Discussionmentioning

confidence: 99%

“…Vo et al (2022) utilized numerical methods to evaluate the stability of an underground cavern in Vietnam. Sari (2022) used the finite element method to analyze the two-and three-dimensional stability of underground storage caverns in the soft rock of Cappadocia, Turkey, and found that 15 m seems to be the best depth for digging typical underground storage caverns. Rezaei and Rajabi (2018) used numerical analysis to predict the vertical displacement of the roof and floor of the powerhouse cavern under different conditions.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Back Analysis and Stability Prediction of Surrounding Rock During Excavation of the Shuangjiangkou Underground Powerhouse

Li,

Xiao,

Feng

et al. 2024

Journal of Civil Engineering and Management

View full text Add to dashboard Cite

The underground powerhouse of the Shuangjiangkou hydropower station is one of the largest caverns under construction in China, and its stability during construction is crucial for safe construction. To study the stability of the surrounding rock during excavation, the displacement and stress of the surrounding rock were monitored by multi-point displacement meters and bolt stress meters. Based on the monitoring data, the elastic modulus, Poisson’s ratio, friction angle, and cohesion of surrounding rock were inversely analyzed by the PSO-BP algorithm. Then, the back-analyzed parameters were used to simulate the subsequent excavations and predict the stability of surrounding rock during the following construction. The analysis results show that the surrounding rocks were generally stable during the initial four stages of excavation, and the main factors affecting their stability were blasts and unfavorable geological structures, including the lamprophyre vein and the F1 fault. These unfavorable geological structures also significantly decrease the mechanical parameters of surrounding rock as demonstrated by back analysis, and the stability prediction results show that the omnibus bar cave and the tailrace tunnel were at the greatest risk of instability during the subsequent excavations. This study provides a practical analysis for engineering excavation of the underground caverns.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Back Analysis and Stability Prediction of Surrounding Rock During Excavation of the Shuangjiangkou Underground Powerhouse

Li,

Xiao,

Feng

et al. 2024

Journal of Civil Engineering and Management

View full text Add to dashboard Cite

show abstract

Hybrid stacking ensemble algorithm and simulated annealing optimization for stability evaluation of underground entry-type excavations

Liu,

Zhao,

Liang

et al. 2024

Underground Space

View full text Add to dashboard Cite

Study on Energy Distribution Law and Numerical Simulation of Mining Roadway Surrounding Rock

Zhang

Duan

et al. 2022

Geofluids

View full text Add to dashboard Cite

In underground engineering, the deformation and failure process of the surrounding rock of the roadway is always accompanied by the occurrence of energy. The study of the energy distribution law of the surrounding rock of the roadway plays an important role in its stability. This paper first theoretically analyzes the stress and energy distribution law of the surrounding rock of the roadway, then with the help of numerical simulation method, combined with the existing physical and mechanical parameters, based on the existing support parameters of Dongrong No. 2 Mine, gradually compares and analyzes the distribution of vertical stress and energy under the three support methods of no support, original support, and combined support, and the results found that the vertical stress distribution law under the three support methods is basically the same. High-stress areas appear on the two ribs of the roadway, and low-stress areas appear on the roof and floor. The range of high-stress areas from no support to combined support continues to decrease and becomes more evenly distributed. The energy distribution pattern is basically the same. The overall energy of the coal seam is high. There are high-energy areas at 2 m left and right of the roadway, and the roof and floor energy of the roadway is the smallest. The low energy area extends 5 m up and down, respectively. The range of high-energy areas from no support to combined support is shrinking, and the energy distribution is more uniform.

show abstract

Two- and three-dimensional stability analysis of underground storage caverns in soft rock (Cappadocia, Turkey) by finite element method

Cited by 5 publications

References 52 publications

Back Analysis and Stability Prediction of Surrounding Rock During Excavation of the Shuangjiangkou Underground Powerhouse

Back Analysis and Stability Prediction of Surrounding Rock During Excavation of the Shuangjiangkou Underground Powerhouse

Hybrid stacking ensemble algorithm and simulated annealing optimization for stability evaluation of underground entry-type excavations

Study on Energy Distribution Law and Numerical Simulation of Mining Roadway Surrounding Rock

Contact Info

Product

Resources

About