A Method and Equipment for Continuously Testing the Permeability Coefficient of Rock and Soil Layers by Wei Chen, Datian Cui, Meng Xu, Rongchao Xu

“…The water pressure test and steady-flow pumping test are still commonly used for measuring the permeability coefficient of rock and soil strata. Limited by the fact that the average value of the permeability coefficient could be obtained only by this testing method, the accuracy of the experimental results of the permeability coefficient for special rock and soil strata is not good. …”
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Deformations and seepage-induced erosion of fractured rocks in fault under confined settings by Wenbin SUN, Dianjin TIAN, Cheng MA, Yanchao XUE, Can YANG, Kaipeng ZHU

“…MethodsUsing a deformation-seepage experiment system for fractured rocks, this study investigated the characteristics of compressive deformations and seepage-induced erosion of fractured rocks in faults. …”
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Investigation of the Models of Flow through Fractured Rock Masses Based on Borehole Data by Long Tan, Wei Xiang, Jin Luo, Qingbing Liu, Xu Zuo

“…These relationships were then used to establish a model for estimating the permeability coefficient of rock mass that takes into account the influence from the confining pressure on the seepage flow. …”
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Study on Seismic Response Characteristics of Shield Tunnel in Soil-Rock Combination Stratum by Guang-Biao Shao, Xi-Sen Fan, Jin-Hua Shang, Li-Xin Lu

“…The sharp change of stiffness in the soil-rock combination stratum is the weak point in the seismic design of the tunnel structure. …”
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Research on Structural Characteristics of Dynamic Nuclear Zone in Dynamic System of Coal and Rock by Hai Rong, Bing Liang, Hongwei Zhang, Feng Zhu

“…In order to calculate the concrete scale range of coal and rock mass in rockburst of different degrees of danger and to prevent and control rockburst in coal mines, the concept of dynamic system of coal and rock is put forward in this paper. …”
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Mechanical Behavior of Cracked Rock in Cold Region Subjected to Step Cyclic Loading by Liang Zhang, Fujun Niu, Minghao Liu, Jing Luo, Xin Ju

“…In order to analyze the mechanical behavior of cracked rock in cold region subjected to cyclic loading, step cyclic loading and unloading (SCLU) triaxial tests with different stress paths have been designed. …”
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Experimental Study on Seepage Anisotropy of a Hexagonal Columnar Jointed Rock Mass by Yanxin He, Zhende Zhu, Wenbin Lu, Yuan Tian, Xinghua Xie, Sijing Wang

“…Many columnar jointed rock masses (basalt) are present at the Baihetan hydropower dam site, and their seepage characteristics have a significant impact on the project’s safety and stability. …”
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Flow Field Simulation of Swirling Abrasive Jet Nozzle for Hard Rock Breaking by Zhang Dongqing, Li Jingbin, Hu Xiao, Liu Xin, Cheng Kang

“…Radial jet drilling (RJD) technology has been proved to be an economical and efficient stimulation technology for oil and gas, geothermal, hydrate, etc. but conventional RJD technology adopts pure water jet to break rock and form laterals, which has low rock breaking efficiency and is unable to effectively break hard rock such as shale. …”
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Loading-Rate Dependency of Young’s Modulus for Class I and Class II Rocks by Hailong Zhang, Seisuke Okubo, Cancan Chen, Yang Tang, Jiang Xu

“…Understanding the time-dependent behavior of rocks is important for ensuring the long-term stability of underground structures. …”
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MINERALOGY AND GENESIS OF ULTRAMAFIC ROCKS FROM THE KURTUSHIBA OPHIOLITE BELT (WESTERN SAYAN) by V.A. Simonov, A.I. Chernyshov, A.V. Kotlyarov

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Application of rock phosphate enriched composts increases nodulation, growth and yield of chickpea by Allah Ditta, Juma Muhammad, Muhammad Imtiaz, Sajid Mehmood, Zheng Qian, Shuxin Tu

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Single Pick Cutting Rock Load Identification Based on Improved Regularization Method by Lei Dong, Siyu Zhai, Bukang Wang, Liang Dong, Junyuan Wang, Ruimin Shi

“…A single pick cutting rock test equipment was built, which could simulate the actual working conditions of pick cutting rock in the underground or tunnel. …”
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On the Experimental Determination of Poisson’s Ratio for Intact Rocks and Its Variation as Deformation Develops by Lu Dong, Hongfa Xu, Pengxian Fan, Zhichou Wu

“…In this paper, in order to explore the behavior of Poisson’s ratio, uniaxial compression tests according to The International Society for Rock Mechanics and Rock Engineering are performed on standard specimens of granite, marble, red sandstone, carbonate rock, coral concrete, etc. …”
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Macro-Micro Failure Mechanisms and Damage Modeling of a Bolted Rock Joint by Gang Wang, Yongzheng Zhang, Yujing Jiang, Shugang Wang, Wenjun Jing

“…The results indicate a clear relationship between the mechanical response of a bolted rock joint and the mechanical properties of the anchoring angle. …”
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Study on Dynamic Constitutive Model of Weakly Consolidated Soft Rock in Western China by Lei Wang, Hongming Su, Yue Qin, Shiguan Chen

“…It was also found that the constitutive equation was applicable to express the dynamic mechanical properties of rock-like materials such as hard rock, soft rock, frozen soil, raw coal, and concrete. …”
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Investigation for Influences of Seepage on Mechanical Properties of Rocks Using Acoustic Emission Technique by Saisai Wu, Xiaohan Zhang, Junping Li, Zhao Wang

“…The behavior of rock mass is governed by the properties of both the rock material and discontinuities in the rock mass. …”
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Prediction of Grade Classification of Rock Burst Based on PCA-SSA-PNN Architecture by Zhenyi Wang, Yalei Wang, Xiaoliang Jin

“…The uncertainty and complexity of rock burst brings great difficulties to the prediction of rock burst grades. …”
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The Study on Large-Diameter Drilling Prevention Method of Rock Burst in the Xinxing Coal by Gao Xu, Zuo Minghui, Shu Yanmin

“…Based on the engineering background, the 41051 working face of the 65th coal mine in Qitaihe Xinxing Mine was regarded as the engineering background, by using of the comprehensive research methods such as theoretical analysis and calculation, FLAC3D numerical simulation, physical parameters of coal and rock in laboratory, and the field industrial measurement, to research on the large drilling relieving rock burst mechanism and parameter setting in reasonable. …”
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Scale Dependence of Waviness and Unevenness of Natural Rock Joints through Fractal Analysis by Yingchun Li, Shengyue Sun, Hongwei Yang

“…No obvious stationarity threshold has been found for the three rock joint samples, indicating the surface roughness of natural rock joints should be quantified at the scale of the rock mass in the field.…”
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Detrital zircon geochronology of Paleoproterozoic metasedimentary rocks from Jämsä, Central Finland by Perttu Mikkola, Matti Kurhila, Hannu Huhma

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