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Zeqi Zhu, Lan Cui, Youkou Dong, Qian Sheng, Kaiwei Tian and Zhenshan Guo
In order to study the deformation and stability of a fractured rock mass, existing research suggests that fracture deformation, which is usually obtained by evaluating the equivalent deformation modulus, dominates the deformation of a fractured rock mass...
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Liping Qiao, Zhechao Wang, Wei Li, Huan Liu and Lei Yang
It is of great significance to study the mechanical properties of rock fracture for the stability of rock engineering projects. The mechanical properties, including the normal compression and shear properties of rock fracture, are studied by a series of ...
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Xiaoyu Tang, Wen Wan, Zhenxing Lu and Wei Chen
To investigate the influence of non-singular terms (T stress) in the stress field on the composite fractures of hard rock Type I?II, such as rock splitting failure and hydraulic fracture propagation, this study focused on hard rocks in metallic mines. Th...
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Hao Wu and Yongsheng Jia
In rock engineering, the dynamic loads caused by mechanical action and rock blasting have an extremely significant influence on the stableness of surrounding rock masses. To examine the impact of dynamic load on the mechanical properties and fracturing c...
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Xiaowu Huang, Jian Guo, Yusong Miao, Xianqi Xie, Yujin Li, Hailiang Wang and Feifei Huang
The surrounding rock during a coal mine excavation is prone to significant engineering disasters such as considerable deformation and rock bursts. Pressure release can improve the stress field of a deep rock mass and prevent the occurrence of dangers suc...
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Yuan Tian, Bangcheng Han, Xinyu Liu, Kai Shen and Jiangbo Li
Using experimental methods to study the influence of hole and cracks on the mechanical properties and fracture characteristics of rock-like mortar materials under biaxial compression conditions. The double crack specimens with hole depths from 0?100 mm a...
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Jun Zhang, Shengdong Liu, Cai Yang and Juanjuan Li
The deformation and fracturing of coal rock is a crucial part of coal and rock dynamic disasters and is accompanied by variations in the electrical field of the rock. In this study, the self-potential characteristics of coal rock were measured to dynamic...
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Zhi Li, Haoyu Mao, Biao Li, Xiang Zhou, Guo Liao and Jianjun Chen
Numerous large hydropower projects have been built, are being built, or are planned to be developed in southwest China as a result of the increasing demand for clean energy in China?s social and economic development. Based on engineering geological data,...
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Na Wu, Zhengzhao Liang, Yan Tao, Ting Ai and Guijie Li
The existence of fractures has a significant influence on the mechanical properties of a rock mass. The sensitivity of the rock mass?s mechanical properties to the fracture?s geometric parameters is conducive to improving the measurement accuracy of frac...
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Tingting Wang, Pingfeng Li, Chun?an Tang, Bingbing Zhang, Jiang Yu and Tao Geng
Frozen fractured rock mass is often encountered during the implementation of geotechnical engineering in cold regions. The tensile strength parameters of frozen rock play an important role in the construction of rock slopes involving tensile failure. In ...
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Peitao Wang, Cao Liu, Zhenwu Qi, Zhichao Liu and Meifeng Cai
The geometry of the joint determines the mechanical properties of the rock mass and is one of the key factors affecting the failure mode of surrounding rock masses. In this paper, a new rough discrete fractures network (RDFN) characterization method base...
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Chaojie Cheng, Johannes Herrmann, Bianca Wagner, Bernd Leiss, Jessica A. Stammeier, Erik Rybacki and Harald Milsch
The long-term sustainability of fractures within rocks determines whether it is reasonable to utilize such formations as potential EGS reservoirs. Representative for reservoirs in Variscan metamorphic rocks, three long-term (one month each) fracture perm...
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Andrea Spagnoli
This Special Issue covers the broad topic of structural integrity of non-metallic materials, and it is concerned with the modelling, assessment and reliability of structural elements of any scale. In particular, the articles being contained in this issue...
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Ru Jia, Bo Liu, Xiaofei Fu, Lei Gong and Zhida Liu
Faults have complex internal structures, which can be divided into the fault core and the damaged zone. During the fault formation process, the damaged zone will develop a large number of fractures cross cutting the adjacent host rocks, where the size an...
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Diyuan Li, Zhi Sun, Quanqi Zhu and Kang Peng
The specific application or a potential application of the work is related to deep mining and tunneling engineering.
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Zhenhua Han, Luqing Zhang and Jian Zhou
Rock is an aggregate of mineral grains, and the grain shape has an obvious influence on rock mechanical behaviors. Current research on grain shape mostly focuses on loose granular materials and lacks standardized quantitative methods. Based on the CLUMP ...
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Yi Hu, Yiwei Liu, Can Cai, Yong Kang, Xiaochuan Wang, Man Huang and Feng Chen
Due to the advantages of good fracture performance and the application of carbon capture and storage (CCS), supercritical carbon dioxide (SC-CO2) is considered a promising alternative for hydraulic fracturing. However, the fracture initiation mechanism a...
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Kun Zhang, Pengbo Chang, Jianxi Ren, Zheng Liu and Ke Wang
The fractured rock mass in the western cold region is affected by freezing and thawing disasters and is prone to local damage and fracture along the fissures? ends. The fatigue damage induced by repeated frost heave and traffic loads seriously endangers ...
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Dong Tang, Huixiang Jian, Min Song and Zhongming Jiang
During the operation of underground water-sealed oil storage caverns, a large amount of oil vapor is generated due to volatilization. Oil vapor can easily leak into the surrounding rock, and fractures in the surrounding rock are usually the dominant chan...
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Juntao Ma, Xue Ling, Qin Zhou, Zhiqiao Wang and Hongjie Liu
In order to study the mechanism of crack propagation in rock cutting, experiments and discrete element numerical simulation of rock cutting at different depths were adopted in this paper. The rock fragmentation can be divided into mini-size fragmentation...
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