动态渗压环境下卸荷岩石循环加卸载变形破坏及能量演化过程分析

doi:10.13722/j.cnki.jrme.2023.1218

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Abstract Taking the excavation and unloading of rock mass under seepage pressure environment as the research object，triaxial cyclic loading failure tests were conducted on unloading rock samples under cyclic pore water pressure to explore the influence of pore pressure level and unloading level on the deformation and energy evolution characteristics of rock samples under dynamic cyclic loading. The results show that：(1) The shape of the stress-strain curve of unloaded rock samples under cyclic loading and unloading is greatly influenced by the pore pressure and the unloading magnitude；(2) During the cyclic loading and unloading process，the difference between the peak circumferential strain and the volumetric strain of unloaded rock samples due to the unloading magnitude shows a trend of first increasing and then decreasing with increasing the initial pore pressure level；(3) The characteristic energy of unloaded rock samples shows a non-linear growth trend with increasing the number of cycles，and the total input energy of unloaded rock samples under the cyclic pore pressure environment is generally than that under the constant pore pressure.

Key words： rock mechanics cyclic pore pressure excavation unloading mechanical properties energy allocation

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	Articles by authors
	CHEN Xingzhou
	BAI Yani
	CHEN Lili
	GONG Sheng
	WANG Wenrui
	LI Zhenhan
	SU Zhenkun

Cite this article:

CHEN Xingzhou,BAI Yani,CHEN Lili, et al. Analysis of cyclic loading and unloading deformation and energy evolution process of unloaded rocks under dynamic osmotic pressure environment[J]. , 2024, 43(10): 2356-2367.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2023.1218 OR https://rockmech.whrsm.ac.cn/EN/Y2024/V43/I10/2356

[1]	汪泓，杨天鸿，刘洪磊，等. 循环荷载下干燥与饱和砂岩力学特性及能量演化[J]. 岩土力学，2017，38(6)：1 600-1 608.(WANG Hong，YANG Tianhong，LIU Honglei，et al. Mechanical properties and energy evolution of dry and saturated sandstone under cyclic loading[J]. Rock and Soil Mechanics，2017，38(6)：1 600-1 608.(in Chinese))
[2]	NIU S J，GE S S，YANG D F，et al. Mechanical properties and energy mechanism of saturated sandstones[J]. Journal of Central South University，2018，25(6)：1 447-1 463.
[3]	刘忠玉，董旭，张旭阳. 分级循环荷载下层理煤岩力学特性试验研究[J]. 岩石力学与工程学报，2021，40(增1)：2 593-2 602.(LIU Zhongyu，DONG Xu，ZHANG Xuyang. Experimental study on mechanical properties of bedding coal and rock under graded cyclic loading[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(Supp.1)：2 593-2 602.(in Chinese))
[4]	黄锋，周洋，彭焱森，等. 循环荷载下花岗岩强度及变形特征试验研究[J]. 地下空间与工程学报，2021，17(2)：356-364.(HUANG Feng，ZHOU Yang，PENG Yansen，et al. Study on the strength and deformation characteristics of granite under cyclic loading[J]. Chinese Journal of Underground Space and Engineering，2021，17(2)：356-364.(in Chinese))
[5]	赵军，郭广涛，徐鼎平，等. 三轴及循环加卸载应力路径下深埋硬岩变形破坏特征试验研究[J]. 岩土力学，2020，41(5)：1 521-1 530. (ZHAO Jun，GUO Guangtao，XU Dingping，et al. Experimental study on deformation and failure characteristics of deeply-buried hard rock under triaxial and cyclic loading and unloading stress paths[J]. Rock and Soil Mechanics，2020，41(5)：1 521-1 530.(in Chinese))
[6]	刘涛，杨鹏，吕文生，等. 岩石在不同应力幅值下受低频循环扰动的力学特性试验[J]. 煤炭学报，2017，42(9)：2 280-2 286.(LIU Tao，YANG Peng，LV Wensheng，et al. Rock mechanical properties experiments with low-frequency circulation disturbance under different stress amplitudes[J]. Journal of China Coal Society，2017，42(9)：2 280-2 286.(in Chinese))
[7]	MENG Q B，LIU J F，REN L，et al. Experimental study on rock strength and deformation characteristics under triaxial cyclic loading and unloading conditions[J]. Rock Mechanics and Rock Engineering，2021，54(2)：777-797.
[8]	YIN P F，YANG S Q，GAO F，et al. Experiment and DEM simulation study on mechanical behaviors of shale under triaxial cyclic loading and unloading conditions[J]. Geomechanics and Geophysics for Geo-Energy and Geo-Resources，https：//doi.org/10.1007/ s40948-023-00554-y.
[9]	张培森，许大强，张睿，等. 不同围压及循环载荷下砂岩的渗流、力学特性试验研究[J]. 岩石力学与工程学报，2022，41(12)：2 432-2 450.(ZHANG Peisen，XU Daqiang，ZHANG Rui，et al. Experimental study on seepage and mechanical properties of sandstone under different confining pressures and cyclic loads[J]. Chinese Journal of Rock Mechanics and Engineering，2022，41(12)：2 432-2 450.(in Chinese))
[10]	邓华锋，方景成，李建林，等. 水-岩和循环加卸载次序作用下砂岩动力特性损伤演化规律[J]. 岩土力学，2021，42(2)：343-351.(DENG Huafeng，FANG Jingcheng，LI Jianlin，et al. Damage evolution of dynamic characteristics of sandstone under the sequential action of water-rock interaction and cyclic loading and unloading[J]. Rock and Soil Mechanics，2021，42(2)：343-351.(in Chinese))
[11]	陈兴周，白亚妮，陈莉丽，等. 高渗压与循环加卸载环境下开挖卸荷岩体力学特性试验研究[J]. 岩土工程学报，2024，46(4)：737-745.(CHEN Xingzhou，BAI Yani，CHEN Lili，et al. Experimental study on mechanical properties of excavated unloaded rock mass under high permeability and cyclic loading and unloading environment[J]. Chinese Journal of Geotechnical Engineering，2024，46(4)：737-745.(in Chinese))
[12]	魏元龙，杨春和，郭印同，等. 三轴循环荷载下页岩变形及破坏特征试验研究[J]. 岩土工程学报，2015，37(12)：2 262-2 271.(WEI Yuanlong，YANG Chunhe，GUO Yintong，et al. Experimental research on deformation and fracture characteristics of shale under cyclic loading[J]. Chinese Journal of Geotechnical Engineering，2015，37(12)：2 262-2 271.(in Chinese))
[13]	LIN Q，CAO P，MAO S，et al. Fatigue behaviour and constitutive model of yellow sandstone containing pre-existing surface crack under uniaxial cyclic loading[J]. Theoretical and Applied Fracture Mechanics，2020，109：102776.
[14]	王瑞红，危灿，刘杰，等. 循环加卸载下节理砂岩宏细观损伤破坏机制研究[J]. 岩石力学与工程学报，2023，42(4)：810-820.(WANG Ruihong，WEI Can，LIU Jie，et al. Study on the macroscopic and microscopic damage and failure mechanism of jointed sandstone under cyclic loading and unloading[J]. Chinese Journal of Rock Mechanics and Engineering，2023，42(4)：810-820.(in Chinese))
[15]	谢和平，彭瑞东，鞠杨，等. 岩石破坏的能量分析初探[J]. 岩石力学与工程学报，2005，24(15)：2 603-2 608.(XIE Heping，PENG Ruidong，JU Yang，et al. On energy analysis of rock failure[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(15)：2 603-2 608.(in Chinese))
[16]	谢和平，鞠杨，黎立云. 基于能量耗散与释放原理的岩石强度与整体破坏准则[J]. 岩石力学与工程学报，2005，24(17)：3 003-3 010. (XIE Heping，JU Yang，LI Liyun. Criteria for strength and structural failure of rocks based on energy dissipation and energy release principles[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(17)：3 003-3 010.(in Chinese))
[17]	苗胜军，刘泽京，赵星光，等. 循环荷载下北山花岗岩能量耗散与损伤特征[J]. 岩石力学与工程学报，2021，40(5)：928-938.(MIAO Shengjun，LIU Zejing，ZHAO Xingguang，et al. Energy dissipation and damage characteristics of Beishan granite under cyclic loading and unloading[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(5)：928-938.(in Chinese))
[18]	李欣慰，姚直书，黄献文，等. 循环加卸载下砂岩变形破坏特征与能量演化研究[J]. 岩土力学，2021，42(6)：1 693-1 704.(LI Xinwei，YAO Zhishu，HUANG Xianwen，et al. Investigation of deformation and failure characteristics and energy evolution of sandstone under cyclic loading and unloading[J]. Rock and Soil Mechanics，2021，42(6)：1 693-1 704.(in Chinese))
[19]	孟庆彬，王从凯，黄炳香，等. 三轴循环加卸载条件下岩石能量演化及分配规律[J]. 岩石力学与工程学报，2020，39(10)：2 047-2 059. (MENG Qingbin，WANG Congkai，HUANG Bingxiang，et al. Rock energy evolution and distribution law under triaxial cyclic loading and unloading conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(10)：2 047-2 059.(in Chinese))
[20]	杨小彬，程虹铭，裴艳宇. 不同加载方式下岩石变形及峰后能量演化特征研究[J]. 岩石力学与工程学报，2020，39(增2)：3 229-3 236. (YANG Xiaobin，CHENG Hongming，PEI Yanyu. Study on the evolution characteristics of rock deformation and post-peak energy under different loading methods[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(Supp.2)：3 229-3 236.(in Chinese))
[21]	杨小彬，韩心星，刘恩来，等. 等幅循环加载岩石非均匀变形演化试验研究[J]. 采矿与安全工程学报，2019，36(2)：388-395.(YANG Xiaobin，HAN Xinxing，LIU Enlai，et al. Experimental study on the evolution of non-uniform deformation of rock under constant amplitude cyclic loading[J]. Journal of Mining and Safety Engineering，2019，36(2)：388-395.(in Chinese))
[22]	杨小彬，程虹铭，吕嘉琦，等. 三轴循环荷载下砂岩损伤耗能比演化特征研究[J]. 岩土力学，2019，40(10)：3 751-3 757.(YANG Xiaobin，CHENG Hongming，LV Jiaqi，et al. Energy consumption ratio evolution law of sandstones under triaxial cyclic loading[J]. Rock and Soil Mechanics，2019，40(10)：3 751-3 757.(in Chinese))
[23]	徐颖，李成杰，郑强强，等. 循环加卸载下泥岩能量演化与损伤特性分析[J]. 岩石力学与工程学报，2019，38(10)：2 084-2 091.(XU Ying，LI Chengjie，ZHENG Qiangqiang，et al. Analysis of energy evolution and damage characteristics of mudstone under cyclic loading and unloading[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(10)：2 084-2 091.(in Chinese))