DING Wuxiu, FENG Xiating. Damage effect and fracture criterion of rock with multi-preexisting cracks under chemical erosion[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(6): 899-904.
Citation:
DING Wuxiu, FENG Xiating. Damage effect and fracture criterion of rock with multi-preexisting cracks under chemical erosion[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(6): 899-904.
DING Wuxiu, FENG Xiating. Damage effect and fracture criterion of rock with multi-preexisting cracks under chemical erosion[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(6): 899-904.
Citation:
DING Wuxiu, FENG Xiating. Damage effect and fracture criterion of rock with multi-preexisting cracks under chemical erosion[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(6): 899-904.
1.School of Resources and Civil Engineering Northeastern University Shenyang 110004 China 2.Department of Civil Engineering Luoyang Institute of Science and Technology Luoyang 471023 China 3.State Key Laboratory of Geomechanics and Geotechinical Engineering Institute of Rock and Soil Mechanics Chinese Academy of Sciences Wuhan 430071 China
Through the analysis of strength,meso-structure and crack coalescence mode of rock corroded by different chemical solutions,the corrosive and damage charateristics of rock strength,meso-structure and crack coalescence mode are studied.It is known that the material properties of rock skeleton part are worse and the void ratio increases when the rock specimen with multi-preexisting cracks is corroded by chemical solutions.For fracture rock,the fracture stress will be reduced and the crack length will increase under the chemical corrosion.The fracure criterion of rock,with multi-preexisting cracks under the chemical corrosion is proposed considering the reduction of fracture stress and the increment of crack length caused by chemical damage.