Stress Intensity Factor of Rock Mass Offset Oblique Crack under Three-Point Bending LoadChinese Full TextEnglish Full Text (MT)
WANG Chao;WU Yongping;ZHAO Zihao;CAO Jian;DUAN Huiqiang;YANG Panpan;Schoolof Mining and Coal ,Inner Mongolia University of Science and Technology;InnerMongolia Key Laboratory of Mining Engineering;Inner MongoliaResearch Center for Coal Safety Mining and Utilization Engineering and Technology;InnerMongolia Cooperative Innovation Center for Coal Green Mining and Green Utilization;School of Energy Sources,Xi′an University of Science and Technology;
Abstract: The roof of underground roadway(chambers) often breaks due to bending and delamination,and the location of the break is closely related to the geometric shape and position of the cracks. To reveal the impact of cracks on rock fracture,a three-point bending model of rock mass with offset oblique cracks was established. The offset coefficient and connectivity ratio of cracks were defined,and the relationship between the offset coefficient,inclination angle,and connectivity of cracks was analyzed. ... More
Keywords:
three-point bending; stress intensity factor; rock mass; offset oblique crack; connectivity ratio;
- DOI:
10.19614/j.cnki.jsks.202402011
- Series:
(B) Chemistry/ Metallurgy/ Environment/ Mine Industry
- Subject:
Mining Engineering
- Classification Code:
TD313
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