Study on the Rock Mechanical Properties under Different Preloading Values
DOI:
https://doi.org/10.54691/fc8sp741Keywords:
Rock mechanics, Preloading, Single-axis and Triaxial Tests, Confining Pressure.Abstract
In order to study the influence of different preloading values on rock mechanical properties, uniaxial and triaxial compression tests were carried out to analyze rock failure forms, deformation characteristics and strength changes. The results show that the failure of rock mainly consists of compaction stage, elastic stage, plastic stage and fracture stage. In the triaxial compression test, the strength of the rock decreases with the increase of the preload value.
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[1] Qiao Tong, Zhang Guang, Hu Shaohua, et al. Research on constitutive model of microcrack compaction section of brittle rock [J]. China Production Safety Science and Technology, 2017, 13(10): 128-135.
[2] Zhou Jiawen, Yang Xingguo, Fu Wenxi, et al. Research on uniaxial cyclic loading and unloading tests and fracture damage mechanical characteristics of brittle rocks [J]. Journal of Rock Mechanics and Engineering, 2010, 29(6): 1172-1183.
[3] Huang Mingli, Tang Chunan, Zhu Wancheng. SEM real-time study of rock failure and instability process under uniaxial compression [J]. Journal of Northeastern University (Natural Science Edition), 1999, 20(4): 426-429.
[4] Yang Shengqi, Dai Yonghao, Han Lijun, et al. Uniaxial compression test study on deformation and failure characteristics of brittle marble with intermittent prefabricated cracks [J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(12): 2391-2404.
[5] Huang Yanhua, Yang Shengqi, Ju Yang, et al. Experimental study on triaxial compression mechanical properties of discontinuous fractured rock materials [J]. Chinese Journal of Geotechnical Engineering, 2016, 38(07): 1212-1220.
[6] Zeng Sheng, Zhang Ni, Sun Bing, et al. Experimental study on the stress characteristics of rock concrete integrated two-media under dry and saturated conditions [J]. Bulletin of Silicates, 2018, 37(7): 2206-2209, 2213.
[7] Meng Qingbin, Wang Congkai, Huang Bingxiang, et al. Rock energy evolution and distribution rules under triaxial cyclic loading and unloading conditions [J]. Journal of Rock Mechanics and Engineering, 2020, 39(10): 2047-2059.
[8] Yao Wei, Yu Jin, Zhou Xianqi, et al. Damage fracture and permeability characteristics of red sandstone under the combined disturbance of cyclic loading and confining pressure relief [J]. Chinese Journal of Geotechnical Engineering, 2024: 1-9.
[9] Huang Da, Tan Qing, Huang Runqiu. Research on the strain energy conversion process mechanism of marble damage and fracture under high stress and strong unloading conditions [J]. Chinese Journal of Rock Mechanics and Engineering, 2012, 31(12): 2483-2493.
[10] Li Simon, Liu Changyou, Speng Syd, et al. Research on fatigue deformation characteristics and damage model of sandstone under uniaxial graded cyclic loading [J]. Journal of China University of Mining and Technology, 2017(1): 8-17.
[11] Feng Shi, Sheng Hua, Zhang Haijun, et al. Research on the influence of cyclic loading on the mechanical properties of green sandstone with different crack angles [J]. Mining Technology, 2022, 22(03): 45-50.
[12] Zhou Jijun, Shan Renliang, Wang Hui, et al. Research on the strength of damaged and destroyed rocks [J]. Mining Research and Development, 2010, 30(3): 30-33, 108.
[13] Cui Z, Sheng Q, Zhang M, Cao J, Mei X, Luo Q. A New Direct Shear Apparatus for Rock Joints Specialized in Cyclic Loading[J]. Rock Mechanics and Rock Engineering, 2021, 54(8): 4321-4327.
[14] Chang Liuming. Experimental and discrete element simulation research on mechanical properties of the entire failure process of different types of rocks_Chang Liuming (1)[J]. Anhui University of Science and Technology, 2023.
[15] Wu Yanqing, Ding Weihua, Pu Yibin, et al. CT dynamic observation of rock density damage increment under compression conditions [J]. Progress in Natural Science, 2000, 10(9): 830-835.
[16] Wang Rujiang, Ren Meng, Liu Jinsong, etc. Research on the correlation between rock wave speed and strength parameters [J]. Mining Research and Development, 2021, 41(9): 87-91.
[17] Zhao Mingjie, Xu Rong. Research on rock damage characteristics and strength using ultrasonic wave velocity [J]. Chinese Journal of Geotechnical Engineering, 2000(06): 720-722.
[18] Zeng Sheng, Zhang Ni, Sun Bing, et al. Experimental study on the stress characteristics of rock concrete integrated two-media under dry and saturated conditions [J]. Bulletin of Silicate, 2018, 37(7): 2206-2209, 2213.
[19] Zhang Zhiliang, Xu Weiya, Wang Wei, et al. Research on conventional triaxial compression tests and deformation and damage evolution rules of ductile rocks [J]. Chinese Journal of Rock Mechanics and Engineering, 2011(S2): 3857-3862.
[20] Yang Shengqi, Xu Weiya, Su Chengdong. Research on triaxial compression deformation failure and energy characteristics of marble [J]. Engineering Mechanics, 2007, 24(1): 136-142.
[21] Niu Liang, Mu Rui, Chen Jun. Experimental study on mechanical properties of rocks containing natural micro-cracks [J]. Proceedings of the Yangtze Academy of Sciences, 2020, 37(2): 141-146.
[22] Zhang Peisen, Xu Daqiang, Yan Wei, et al. Research on the effects of cyclic addition and removal of confining pressure on rock deterioration and seepage characteristics under different initial damage degrees [J]. Journal of Rock Mechanics and Engineering, 2023, 42(9): 2109-2124.
[23] Qiu Shili, Feng Xiating, Zhang Chuanqing, et al. Experimental study on the unloading mechanical characteristics of deeply buried marble under different confining pressure relief rates [J]. Journal of Rock Mechanics and Engineering, 2010, 29(9): 1807-1817.
[24] Wang Chunping, Wang Lu, Liu Jianfeng, et al. Mechanical properties and failure characteristics of single-cracked granite under uniaxial compression [J]. Journal of Southwest Jiaotong University, 2024, 59(2): 369-376, 446.
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