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are material constants; σci is the uniaxial compressive strength. Moreover, σtm is the tensile strength of the rock mass. Based on the relationship between plastic potential and plastic strain rate, the rate... J. Cent. South Univ. (2019) 26: 1747-1754 DOI: https://doi.org/10.1007/s11771-019-4130-7 Collapse mode of rock mass induced by a concealed karst cave above a deep cavity HUANG Fu(黄阜), ZHANG Min(张敏......
Province, China, as the test material. The direct shearing instrument uses a TAWJ-100 automatic control rock joint shearing instrument developed by China University of Geosciences (Wuhan) and Changchun.... Synthetical deformation analysis of anchor bolt in jointed rock mass [J]. Rock and Soil Mechanics, 2012, 33(4): 1067-1074. http://www.cnki.com. cn/Article/CJFDTotal-YTLX201204017.htm. (in Chinese) [7] GE......
and normal stress; respectively; σci is the uniaxial compressive strength of a intact rock material; and σtm is the tensile strength; A and B, which change from 0 to 1.0, are non-dimensional material... of rock plug structure is subject to the influence of various factors, such as compressive strength σci, tensile strength σtm, dimensionless material parameters A and B, cavern pressure p, and tunnel......
) Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China ? Central South University Press and Springer-Verlag Berlin Heidelberg 2010 Abstract: An empirical expression... Mechanics and Engineering, 2005, 24(8): 1275-1282. (in Chinese) [6] YU Tian-tang. Modeling of inherent anisotropy for geotechnical material [J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23......
, and it just depends on the heterogeneous degree of rock material. Then, the quantificational formula between the value of rock burst proneness index and the accumulative AE counts in rock sample under...Rock burst proneness prediction by acoustic emission test during rock deformationZHANG Zhi-zhen(张志镇), GAO Feng(高峰), SHANG Xiao-ji(尚晓吉) (1. State Key Laboratory for Geomechanics and Deep Underground......
-ju, LU Jia-hao. Study of design of filling material and setting anti-frost layer for high-speed railway roadbed in seasonally frozen regions [J]. Chinese Journal of Rock Mechanics and Engineering... J. Cent. South Univ. (2020) 27: 2082-2093 DOI: https://doi.org/10.1007/s11771-020-4432-9 In-situ experiment investigations of hydrothermal process of highway in deep seasonal frozen soil regions......
soil varies greatly. The material damping of the lower rock strata is quite small, which is caused by the multiple refraction and reflections due to the interface effect when elastic waves propagate... and rock, and can be characterized as soft in the upper area and hard in the lower area. Figure 3 Soil layers and test bridge 2.2 Test equipment An INV3062SC data acquisition system with a DASP-V11......
a tendency to increase with the increase of stress level. At this time, the creep experiment does not induce clear damage on the rock sample. The results show that rock material undergoes micro-structural... results in a change of the seepage flow and the stress field in the affected zone. The variation of permeability is directly connected to the mechanical damage of rock material. However, fewer......
and surrounding rock conditions can then be analyzed. 3.1.2 Lateral pressure curves and analysis of lateral pressure effect of coal mine waste A lateral pressure curve of bulk material, namely... settlements and maximum lateral pressures under different surrounding rock conditions Note: Elastic modulus of similar material was measured by standard samples artificially made using the same material......
, respectively; σc is the uniaxial compressive strength of the intact rock material; mp, sp, and mr, sr are the material parameters that depend on the properties of the rock masses... in nonlinear rock masses YANG Xiao-li(杨小礼), HUANG Fu(黄阜) School of Civil and Architectural Engineering, Central South University, Changsha 410075, China ? Central South University Press......
