Xibing Li
Central South University
Ultimate tensile strengthGeologyEngineeringBrittlenessStrain rateComposite materialSeismologyMining engineeringAcoustic emissionGeotechnical engineeringMaterials scienceOverburden pressureDynamic loadingCompressive strengthExcavationMathematicsComputer scienceRock mass classificationFracture (geology)Computer simulationMechanicsPorosityStructural engineeringSplit-Hopkinson pressure barStress (mechanics)Shear (geology)
204Publications
44H-index
4,534Citations
Publications 203
Newest
#1Qiang Li (CSU: Central South University)H-Index: 3
#2Xibing Li (CSU: Central South University)H-Index: 44
Last. Tubing Yin (CSU: Central South University)H-Index: 14
view all 3 authors...
Abstract null null High-temperature rocks in the geothermal reservoir are susceptible to damage under periodic extraction and reinjection conditions, and variation of the pore structure threatens the efficient production of geothermal energy. We mainly conducted research on the influence of cyclic heating and cooling on the pore structure of granite by nuclear magnetic resonance technology and magnetic resonance imaging (MRI). The results show the significant increase of porosity and the sharp d...
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In deep rock engineering, the rock mass can be subjected to thermal stress caused by sudden changes in temperature, which is referred to as thermal shock (TS). To study the effect of TS on heated sandstone, three cooling methods are used to provide different cooling rates. Then the coupled dynamic and static loading tests are carried out on the heated sandstone by means of a modified split Hopkinson pressure bar (SHPB) system. The test results show that as the heating level increases, the dry de...
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#1Tubing Yin (CSU: Central South University)H-Index: 14
#2Yongjun Chen (CSU: Central South University)
Last. Qiang Li (CSU: Central South University)H-Index: 3
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Elastic modulus is an important parameter in rock mechanics and engineering geology that determines the mechanical properties of rocks. To analyze the effect of temperature and dynamic loading conditions on the elastic modulus of typical rocks, data and results from international publications are classified, analyzed, discussed and summarized. The findings show that the elastic modulus of different rocks is correlated linearly and negatively with temperatures, which can be attributed to dehydrat...
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#1Xibing Li (CSU: Central South University)H-Index: 44
#2Gu Helong (CSU: Central South University)H-Index: 4
Last. Qiyue Li (CSU: Central South University)H-Index: 7
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Abstract null null The study of dynamic fracture mechanism of pre-stressed coal is of great importance to the coal bursts prevention and the coal pillar reinforcement subjected to the dynamic disturbance. In this paper, the effect of pre-static load and dynamic load on the initiation fracture evolution and destruction states of coal were studied using experimental and theoretical approaches. The results show that the coal usually splits into several blocks along the dominant fractures when subje...
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#1Si Xuefeng (CSU: Central South University)H-Index: 7
#2Linqi Huang (CSU: Central South University)H-Index: 6
Last. Fengqiang Gong (SEU: Southeast University)H-Index: 16
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The D-shaped cross section is a commonly used tunnel cross section in underground engineering. To simulate the failure process of a D-shaped hole under deep three-dimensional (3D) high-stress conditions, true-triaxial tests were conducted on cubic granite specimens with a through D-shaped hole, and the failure process of the hole sidewall was recorded in real time. Results show that the spalling failure process of the D-shaped hole sidewall can be divided into four periods: calm, fine particle e...
3 CitationsSource
#1Qiang Li (CSU: Central South University)H-Index: 3
#2Xibing Li (CSU: Central South University)H-Index: 44
Last. Tubing Yin (CSU: Central South University)H-Index: 14
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Abstract Hard rock breaking is a great challenge for deep drilling and mining engineering, and the microwave-assisted rock breaking technique offers a promising solution. However, the lack of knowledge of the effects of microwave irradiation on hard rocks limits the further development of this technology. Laboratory tests have been conducted to investigate the variations of fracture properties of granite subjected to microwave heating. The semi-circular bend (SCB) specimens were prepared, and mo...
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#1Huatao Zhao (CSU: Central South University)H-Index: 6
#2Ming Tao (CSU: Central South University)H-Index: 21
Last. Shibo Xu (Kyoto University)H-Index: 6
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Abstract In this study, the Hoek Brown criteria is primarily employed to calculate the distribution of excavation damaged zone (EDZ) around the cavity buried at 500 m, 1000 m, and 2000 m based on the variation of the in-situ stress and the mechanical properties of the rockmass. Then, the simulation scheme Spectral Element Method (SEM) is applied to investigate the dynamic responses of the excavation-damaged cavity that subjected to the dynamic disturbance, including peak particle velocity (PPV),...
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#1Xiang Li (CSU: Central South University)H-Index: 12
#2Xibing Li (CSU: Central South University)H-Index: 44
Last. Wen-Gui Cao (Hunan University)H-Index: 1
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Abstract This paper presents an information-gap approach (IGA) from a non-probabilistic viewpoint to perform rock tunnel reliability assessment when encountering one particular form of severely deficient information on the variability for the uncertain parameters of rock properties. Such a particular form of severe uncertainty corresponds to the circumstances, where there is nothing available to describe an uncertain rock parameter other than a nominal estimate, with upper and lower error bounds...
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#1Quanqi Zhu (CSU: Central South University)H-Index: 7
#2Chun-de Ma (CSU: Central South University)H-Index: 5
Last. Diyuan Li (CSU: Central South University)H-Index: 20
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The effect of infilling on mechanical response and crack behavior of pre-stressed rock with double rectangular holes under dynamic load was investigated through a series of coupled static–dynamic loading tests on diorite specimens in three different filling states, i.e., no infilling, single infilling and double infilling, using a modified split Hopkinson pressure bar. The deformation, damage and fracture process of specimens were recorded and analyzed by low-speed and high-speed cameras with di...
2 CitationsSource