Fracture Evolution and Energy Characteristics During Marble Failure Under Triaxial Fatigue Cyclic and Confining Pressure Unloading (FC-CPU) Conditions

Wang, Y.; Feng, Wenlin; Hu, Ruilin; Li, C. H.

doi:10.1007/s00603-020-02299-6

Cited by 144 publications

(84 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, for the granite, it is a kind of medium-low grain rock, microcracks exist at the mineral interfaces, water is easily penetrated into rock matrix compared to marble, and a lot of ice lens forms. As proved by other studies that the mesoscopic structural characteristics of rock control its macroscopic mechanical responses [33,[36][37][38][39][40][41], this work further proves this finding. The basic reason causing the difference of frost heaving force evolution is the mesoscopic structures.…”

Section: Maximum Frost Heaving Force Predictionsupporting

confidence: 85%

Experimental Evaluation of Multiple Frost Heaving Parameters for Preflawed Granite in Beizhan Iron Mining, Xinjiang, China

et al. 2021

View full text Add to dashboard Cite

Ice-driven mechanical weathering in cold regions is considered a main factor impacting the stability of rock mass. In this work, the response surface method (RSM) was employed to evaluate and optimize the multiple frost heaving parameters to seek the maximum frost heaving force (FHF), in combination with experimental modeling based on a specially designed frost heaving force measurement system. Three kinds of rocks were prepared with parallel flaws in it having different flaw width, length, and cementation type, and these factors were used to fit an optimal response of the maximum FHF. The experimental results reveal five distinguished stages from the frost heaving force curve, and they are inoculation stage, explosive stage, decline to steady stage, recovery stage, and sudden drop stage. The sensitivity analysis reveals the influential order of the considered factors to peak FHF, which is the rock lithology, flaw width, flaw cement type, and flaw length. For low-porosity hard rock, increasing flaw width, flaw length, and flaw cement strength can improve the probability of frost heaving failure. It is suggested that rock lithology determines the water migration ability and influences the water-ice phase transformation a lot.

show abstract

Section: Maximum Frost Heaving Force Predictionsupporting

confidence: 85%

Experimental Evaluation of Multiple Frost Heaving Parameters for Preflawed Granite in Beizhan Iron Mining, Xinjiang, China

et al. 2021

View full text Add to dashboard Cite

show abstract

“…In addition, in order to provide an objective evaluation basis for the fuzzy comprehensive evaluation, statistical methods are used to obtain the density of subway personnel, Pathfinder is used to simulate the number and distribution of passengers in subway stations, and the accuracy of the evaluation is enhanced based on the analysis results [32,33].…”

Section: Methodsmentioning

confidence: 99%

Developing a Subway Fire Risk Assessment Model Based on Analysis Theory

Yan

Wang

2021

Mathematical Problems in Engineering

View full text Add to dashboard Cite

In order to effectively reduce the risk of subway fires and to improve the safety of passengers, a review of the background to subway fires employing literature and comparative analyses, computer simulation, expert consultation, and other research methods has been employed to conduct an in-depth study of subway fire risk assessment and control measures. A subway fire risk assessment model based on analysis theory was established. Firstly, a subway fire risk evaluation index system was developed, and the weight values of each level were determined using the interval analytic hierarchy process (IAHP), then the evaluation was derived using the fuzzy evaluation method, and the passenger distribution simulation was introduced to improve the objectivity of the evaluation. The results show that the fire evaluation of this subway system is safe. The results show that a subway fire risk assessment model may provide a scientific basis for establishing prevention and control measures, extinguishing methods, passenger safety evacuation schemes, and carrying out fire safety management activities during subway operations.

show abstract

“…rough a series of experiments based on finite element method, Zhang et al [4] studied the displacement, stress, and plastic zone of surrounding rock and the stress of shotcrete lining under different conditions. At the same time, in the research methods of tunnel and other geotechnical engineering problems, the current mainstream research methods mainly include laboratory test, numerical simulation, and field monitoring [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Tunnel Collapse Mechanism and Its Control Strategy in Fault Fracture Zone

Zhang

Wang

2021

Shock and Vibration

View full text Add to dashboard Cite

Complex geological conditions such as fault fracture zone will have a significant adverse impact on tunnel engineering, and collapse, large deformation, and other problems are prominent. The research on the large deformation mechanism and control of tunnel crossing fault fracture zone can provide guidance for tunnel safety construction. Based on the Jingzhai tunnel, combined with geological analysis, theoretical research, numerical simulation, and other means, this paper studies and analyzes the large deformation mechanism of the tunnel. The control effect of different advanced reinforcement measures is studied.

show abstract

Fracture Evolution and Energy Characteristics During Marble Failure Under Triaxial Fatigue Cyclic and Confining Pressure Unloading (FC-CPU) Conditions

Cited by 144 publications

References 37 publications

Experimental Evaluation of Multiple Frost Heaving Parameters for Preflawed Granite in Beizhan Iron Mining, Xinjiang, China

Experimental Evaluation of Multiple Frost Heaving Parameters for Preflawed Granite in Beizhan Iron Mining, Xinjiang, China

Developing a Subway Fire Risk Assessment Model Based on Analysis Theory

Tunnel Collapse Mechanism and Its Control Strategy in Fault Fracture Zone

Contact Info

Product

Resources

About