不同围压及循环载荷下砂岩的渗流、力学特性试验研究

doi:10.13722/j.cnki.jrme.2022.0241

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (1685 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to explore the lagging water inrush mechanism of deep coal seam floor and to clarify the seepage and mechanical characteristics of floor strata during mining，the Rock Top multi-field coupling tester was used to carry out stress-seepage coupling experiment of sandstone under different confining pressures(20，30，40 MPa) and cyclic loading. The results show that：(1) The complete stress-strain curve of rock under cyclic loading can be divided into five stages，including primary micro-fracture compression closure stage，elastic compression stage，crack stable development stage，crack rapid development stage and post-peak deformation failure stage；(2) Under different confining pressures，the peak strength of rock under cyclic loading decreases slightly compared with that under conventional triaxial compression，but the stress-strain curve shows obvious hysteresis；(3) With the increase of the number of cyclic loads，the dissipation energy periodically decreases，and the elastic modulus gradually decreases with the increase of the axial stress difference during the first cycle；(4) Under the same hydrostatic pressure，the permeability of sandstone after failure increases significantly compared with that before failure，and with the increase of the unloading level，the permeability increment is consistent with the growth rate；(5) Under different confining pressures and cyclic loads，the pre-peak permeability changes periodically with the increase of the stress difference，and the post-peak permeability decreases obviously with the decrease of the stress difference；(6) Under different confining pressures and cyclic loads，sandstone mainly shows shear failure，and with the increase of the unloading level，the degree of damage increases. Under 20 MPa confining pressure，sandstone shows a single shear failure. Under the cyclic load of 30 MPa and 40 MPa confining pressure，there is a crack network dominated by through shear cracks and supplemented by secondary tension cracks.

Key words： rock mechanics cyclic load seepage characteristics mechanics characteristics failure characteristics

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHANG Peisen1
	2
	XU Daqiang1
	2
	ZHANG Rui1
	2
	ZHANG Xiaole1
	2
	DONG Yuhang1
	2
	MU Weili1

Cite this article:

ZHANG Peisen1,2,XU Daqiang1, et al. Experimental study on seepage and mechanical properties of sandstone under different confining pressures and cyclic loads [J]. , 2022, 41(12): 2432-2450.

URL:

http://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2022.0241 OR http://rockmech.whrsm.ac.cn/EN/Y2022/V41/I12/2432

[2]	谢和平. 深部岩体力学与开采理论研究进展[J]. 煤炭学报，2019，44(5)：1 283–1 305.(XIE Heping. Research review of the state key research development program of China：Deep rock mechanics and mining theory[J]. Journal of China Coal Society，2019，44(5)：1 283–1 305.(in Chinese))
[32]	何满潮. 深部的概念体系及工程评价指标[J]. 岩石力学与工程学报，2005，24(16)：2 854–2 858.(HE Manchao. Conception system and evaluation indexes for deep engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(16)：2 854–2 858.(in Chinese))
[3]	谢和平，高峰，鞠杨，等. 深部开采的定量界定与分析[J]. 煤炭学报，2015，40(1)：1–10.(XIE Heping，GAO Feng，JU Yang，et al. Quantitative definition and investigation of deep mining[J]. Journal of China Coal Society，2015，40(1)：1–10.(in Chinese))
[5]	何满潮，谢和平，彭苏萍，等. 深部开采岩体力学研究[J]. 岩石力学与工程学报，2005，24(16)：2 803–2 813.(HE Manchao，XIE Heping，PENG Suping，et al. Study on rock mechanics in deep mining engineering [J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(16)：2 803–2 813.(in Chinese))
[7]	谢和平，高峰，鞠杨. 深部岩体力学研究与探索[J]. 岩石力学与工程学报，2015，34(11)：2 161–2 178.(XIE Heping，GAO Feng，JU Yang. Research and development of rock mechanics in deep ground engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(11)：2 161–2 178.(in Chinese))
[11]	肖福坤，申志亮，刘刚，等. 循环加卸载中滞回环与弹塑性应变能关系研究[J]. 岩石力学与工程学报，2014，33(9)：1 791–1 797. (XIAO Fukun，SHEN Zhiliang，LIU Gang，et al. Relationship between hysteresis loop and elastoplastic strain energy during cyclic loading and unloading[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(9)：1 791–1 797.(in Chinese))
[14]	倪智伟，吴小刚，陈浩，等. 分级循环加卸载试验下砂岩的力学特性研究[J]. 金属矿山，2021，(10)：21–27.(NI Zhiwei，WU Xiaogang，CHEN Hao，et al. Study on mechanical properties of sandstone under grading cyclic loading and unloading test[J]. Metal Mine，2021，(10)：21–27.(in Chinese))
[1]	谢和平，高明忠，张茹，等. 深部岩石原位“五保”取芯构想与研究进展[J]. 岩石力学与工程学报，2020，39(5)：865–876.(XIE Heping，GAO Mingzhong，ZHANG Ru，et al. Study on concept and progress of in situ fidelity coring of deep rocks[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(5)：865–876.(in Chinese))
[6]	SELLERS E J，KLERCK P. Modeling of the effect of discontinuities on the extent of the fracture zone surrounding deep tunnels[J]. Tunneling and Underground Space Technology，2000，15(4)：463–469.
[4]	赵阳，周宏伟，任伟光，等. 循环荷载下深部煤层工作面顶板砂岩的渗透率演化规律[J]. 煤炭学报，2019，44(5)：1 495– 1 507.(ZHAO Yang，ZHOU Hongwei，REN Weiguang，et al. Permeability evolution of roof sandstone at deep coal seam working face under cyclic loading[J]. Journal of China Coal Society，2019，44(5)：1 495–1 507.(in Chinese))
[8]	邓华锋，胡玉，李建林，等. 循环加卸载过程中砂岩能量耗散演化规律[J]. 岩石力学与工程学报，2016，35(增1)：2 869–2 875. (DENG Huafeng，HU Yu，LI Jianlin，et al. The evolution of sandstone energy dissipation under cyclic loading and unloading[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(Supp.1)：2 869–2 875.(in Chinese))
[9]	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 sandstones under cyclic loading[J]. Rock and Soil Mechanics，2017，38(6)：1 600–1 608.(in Chinese))
[10]	周家文，杨兴国，符文熹，等 .脆性岩石单轴循环加卸载试验及断裂损伤力学特性研究[J]. 岩石力学与工程学报，2010，29(6)：1 172–1 183.(ZHOU Jiawen，YANG Xingguo，FU Wenxi，et al. Experimental test and fracture damage mechanical characteristics of brittle rock under uniaxial cyclic loading and unloading conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(6)：1 172–1 183.(in Chinese))
[20]	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 of 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))
[31]	中华人民共和国国家标准编写组. GB/T50266——99工程岩体试验方法标准[S]. 北京：中国计划出版社，1999.(The National Standards Compilation Group of Peoples Republic of China. GB/T50266——99Standard for tests method of engineering rock masses[S]. Beijing：China Planning Press，1999.(in Chinese))
[39]	陈运平，席道瑛，薛彦伟. 循环载荷下饱和岩石的应力–应变动态响应[J]. 石油地球物理勘探，2003，(4)：409–413.(CHEN Yunping，XI Daoying，XUE Yanwei. Dynamic stress-strain response of saturated rock under cyclic loading[J]. Oil Geophysical Prospecting，2003，(4)：409–413.(in Chinese))
[41]	吴再海，宋朝阳，谭杰，等. 不同分级循环加卸载模式下岩石能量演化规律研究[J]. 采矿与安全工程学报，2020，37(4)：836–844.(WU Zaihai，SONG Zhaoyang，TAN Jie，et al. The evolution law of rock energy under different graded cyclic loading and unloading modes[J]. Journal of Mining and Safety Engineering，2020，37(4)：836–844.(in Chinese))
[12]	徐敏，张向阳，罗磊，等. 循环荷载模式下砂岩的力学特性及能量演化研究[J]. 矿业研究与开发，2021，41(7)：123–128.(XU Min，ZHANG Xiangyang，LUO Lei，et al. Research on mechanical properties and energy evolution of sandstone under cyclic loading mode[J]. Mining Research and Development，2021，41(7)：123–128.(in Chinese))
[13]	李浩，徐卫亚，王苏生. 致密砂岩循环加载试验及能量演化分析[J]. 河海大学学报：自然科学版，2020，48(2)：176–181.(LI Hao，XU Weiya，WANG Susheng. Cyclic loading test and energy evolution analysis of tight sandstone[J]. Journal of Hohai University：Natural Science，2020，48(2)：176–181.(in Chinese))
[15]	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))
[17]	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))
[19]	王瑞红，李建林，蒋昱州，等 .循环加卸载对岩体残余强度影响的试验研究[J]. 岩石力学与工程学报，2010，29(10)：2 103–2 109. (WANG Ruihong，LI Jianlin，JIANG Yuzhou，et al. Experimental research on influence of cyclic loading and unloading on rock mass residual strength[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(10)：2 103–2 109.(in Chinese))
[21]	李世平，李玉寿，吴振业. 岩石全应力应变过程对应的渗透率–应变方程[J]. 岩土工程学报，1995，17(2)：231–235.(LI Shiping，LI Yushou，WU Zhenye. The permeability-strain equations relating to complete stress-strain path of the rock[J]. Chinese Journal of Geotechnical Engineering，1995，17(2)：231–235.(in Chinese))
[23]	胡大伟，周辉，潘鹏志，等. 砂岩三轴循环加卸载条件下的渗透率研究[J]. 岩土力学，2010，31(9)：2 749–2 754.(HU Dawei，ZHOU Hui，PAN Pengzhi，et al. Study of permeability of sandstone in triaxial cyclic stress tests[J]. Rock and Soil Mechanics，2010，31(9)：2 749–2 754.(in Chinese))
[24]	MORROW C A，ZHANG C B，BYERLEE J D. Effective pressure law for permeability of westerly granite under cyclic loading[J]. Journal of Geophysical Research，1986，91(B3)：3 870–3 876.
[26]	王如宾，徐波，徐卫亚，等. 不同卸荷路径对砂岩渗透性演化影响的试验研究[J]. 岩石力学与工程学报，2019，38(3)：467–475. (WANG Rubin，XU Bo，XU Weiya，et al. Experimental research of the influence of different unloading stress paths on permeability evolution of sandstone[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(3)：467–475.(in Chinese))
[28]	刘先珊，王科，许明. 低渗储层砂岩渗流–应力–损伤渐裂过程的渗透特性演化研究[J]. 岩土工程学报，2018，40(9)：1 584– 1 592.(LIU Xianshan，WANG Ke，XU Ming. Permeability evolution of low-permeability reservoir sandstone considering hydraulic-mechanical-damage coupling effect during gradual fracturing process[J]. Chinese Journal of Geotechnical Engineering，2018，40(9)：1 584–1 592.(in Chinese))
[30]	俞缙，李宏，陈旭，等. 渗透压–应力耦合作用下砂岩渗透率与变形关联性三轴试验研究[J]. 岩石力学与工程学报，2013，32(6)：1 203–1 213.(YU Jin，LI Hong，CHEN Xu，et al. Triaxial experimental study of associated permeability-deformation of sandstone under hydro-mechanical coupling[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(6)：1 203–1 213.(in Chinese))
[35]	MARTIN C D. The effect of cohesion loss and stress path on brittle rock strength[J]. Canadian Geotechnical Journal，1997，34(5)：698–725.
[37]	汪斌，朱杰兵，严鹏，等. 大理岩损伤强度的识别及基于损伤控制的参数演化规律[J]. 岩石力学与工程学报，2012，31(增2)：3 967–3 973.(WANG Bin，ZHU Jiebing，YAN Peng，et al. Damage strength determination of marble and its parameters evaluation based on damage control test[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.2)：3 967–3 973.(in Chinese))
[16]	杨计先，罗明坤，张晓悟，等. 循环加卸载条件下花岗岩力学特性及疲劳损伤演化研究[J]. 采矿与岩层控制工程学报，2021，3(3)：91–98.(YANG Jixian，LUO Mingkun，ZHANG Xiaowu，et al. Mechanical properties and fatigue damage evolution of granite under cyclic loading and unloading conditions[J]. Journal of Mining and Strata Control Engineering，2021，3(3)：91–98.(in Chinese))
[18]	李启龙，贾朝军，傅鹤林. 不同围压下砂岩循环加卸载动力特性研究[J]. 铁道科学与工程学报，2019，16(10)：2 459–2 466.(LI Qilong，JIA Zhaojun，FU Helin. Experimental study on dynamic characteristics of sandstone under cyclic loading and different confining pressures[J]. Journal of Railway Science and Engineering，2019，16(10)：2 459–2 466.(in Chinese))
[22]	王伟，郑志，王如宾，等. 不同应力路径下花岗片麻岩渗透特性的试验研究[J]. 岩石力学与工程学报，2016，35(2)：260–267.(WANG Wei，ZHENG Zhi，WANG Rubin，et al. Experimental study of permeability properties of granitic gneiss under different stress paths[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(2)：260–267.(in Chinese))
[29]	段敏克，蒋长宝，俞欢，等. 分级加–卸载条件下原煤的渗透及能耗特征研究[J]. 岩土力学，2018，39(4)：1 346–1 354.(DUAN Minke，JIANG Changbao，YU Huan，et al. Experimental research on energy dissipation and seepage properties of coal under loading-unloading conditions at different stress levels[J]. Rock and Soil Mechanics，2018，39(4)：1 346–1 354.(in Chinese))
[40]	谢耀社，季明，徐营. 矿山岩体力学[M]. 徐州：中国矿业大学出版社，2016：100–107.(XIE Yaoshe，JI Ming，XU Ying. Mechanics of mine rock mass[M]. Xuzhou：China University of Mining and Technology Press，2016：100–107.(in Chinese))
[25]	BERNABE Y V E S. The effective pressure law for permeability during pore pressure and confining pressure cycling of several crystalline rocks[J]. Journal of Geophysical Research，1987，92(B1)：649–657.
[33]	徐则民，黄润秋，王士天. 隧道的埋深划分[J]. 中国地质灾害与防治学报，2000，(4)：8–13.(XU Zemin，HUANG Runqiu，WANG Shitian. Tunnel classifying in light of depth[J]. The Chinese Journal of Geological Hazard and Control，2000，(4)：8–13.(in Chinese))
[42]	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))
[44]	周家文，杨兴国，符文熹，等. 脆性岩石单轴循环加卸载试验及断裂损伤力学特性研究[J]. 岩石力学与工程学报，2010，29(6)：1 172–1 183.(ZHOU Jiawen，YANG Xingguo，FU Wenxi，et al. Experimental test and fracture damage mechanical characteristics of brittle rock under uniaxial cyclic loading and unloading conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(6)：1 172–1 183.(in Chinese))
[27]	赵阳，周宏伟，任伟光，等. 循环荷载下深部煤层工作面顶板砂岩的渗透率演化规律[J]. 煤炭学报，2019，44(5)：1 495–1 507. (ZHAO Yang，ZHOU Hongwei，REN Weiguang，et al. Permeability evolution of roof sandstone at deep coal seam working face under cyclic loading[J]. Journal of China Coal Society，2019，44(5)：1 495–1 507. (in Chinese))
[34]	LI H C，WANG Q P，QUAN Y P. Study on stress distribution and reasonable size of coal pillar in a coal face[C]// Proceedings of 11th International Conference on Ground Control in Mining. [S. l.]：[s. n.]，1992：30–37.
[36]	王宇，李晓，武艳芳，等. 脆性岩石起裂应力水平与脆性指标关系探讨[J]. 岩石力学与工程学报，2014，33(2)：264–275.(WANG Yu，LI Xiao，WU Yanfang，et al. Research on relationship between crack initiation stress level and brittleness indices for brittle rocks[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(2)：264–275.(in Chinese))
[38]	张培森，赵成业，侯季群，等. 高温与不同水压下深部砂岩渗透特性试验研究[J]. 岩石力学与工程学报，2020，39(6)：1 117–1 128. (ZHANG Peisen，ZHAO Chengye，HOU Jiqun，et al. Experimental study on seepage characteristics of deep sandstone under high temperature and different hydraulic pressures[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(6)：1 117–1 128.(in Chinese))
[45]	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))
[43]	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，Lü 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))