深埋锦屏大理岩渐进破坏过程中的特征能量分析

doi:10.13722/j.cnki.jrme.2022.0075

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

Download: PDF (634 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Through the MTS815 rock mechanics test system，conventional triaxial loading test and unloading tests with different initial confining pressures and different unloading rates were carried out on the deep-buried marble in Jinping. Based on the energy evolution characteristics of the marble deformation and failure process under different stress paths，the progressive failure stages are divided. The energy change law corresponding to each characteristic stress in the process of rock progressive failure is further explored. It can provide reference for underground geotechnical engineering design and dynamic disaster prevention. The research shows that energy evolution curve of deep-buried marble under different stress paths have obvious stages. It can be divided into four progressive failure stages：elasticity，plasticity，yield expansion and post-peak. During the progressive failure process of marble，the characteristic stress and characteristic energy have obvious confining pressure effects. With the increase of confining pressure，the characteristic stress increases linearly. At the same time，the total characteristic energy，elastic strain energy and dissipation energy are increased. Compared with 25 and 50 MPa，the peak elastic energy at 80 MPa is the largest. The energy released is more at failure. It is manifested as a tendency to explode in the middle rock. Under unloading conditions，the peak stress is smaller. The marble's carrying capacity is reduced. The peak total energy，elastic strain energy，and dissipation energy also decrease. Under the same initial confining pressure，the crack initiation stress，peak stress and unloading rate of deep-buried marble show nonlinear relationship. The damage stress increases linearly with the increase of unloading rate. Contrary to loading，peak total energy，dissipated energy decreases with increasing unloading rate. Marble exhibit no rock explosion tendency at different unloading rates. When the unloading rate is 1 MPa/s，the peak dissipated energy is the smallest. In contrast，the peak elastic energy is the largest. The degree of rock damage is small，and more energy is released during failure.

Key words： rock mechanics energy evolution progressive failure characteristic stress confining pressures unloading rates

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LI Hongying1
	LIU Xiaohui2
	3
	ZHENG Yu1
	XIAO Wengen1

Cite this article:

LI Hongying1,LIU Xiaohui2,3, et al. Analysis of characteristic energy during the progressive failure of deep-buried marble in Jinping[J]. , 2022, 41(S2): 3229-3239.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2022.0075 OR https://rockmech.whrsm.ac.cn/EN/Y2022/V41/IS2/3229

[1] 许江，严召松，彭守建，等. 岩石渐进性破坏过程中变形和能量分析[J]. 矿业研究与开发，2019，39(8)：47–53.(XU Jiang，YAN Zhaosong，PENG Shoujian，et al. Deformation and energy analysis in progressive failure of rock[J]. Mining Research and Development，2019，39(8)：47–53.(in Chinese)) [2] 张尧，李波波，许江，等. 基于能量耗散的煤岩三轴受压损伤演化特征研究[J]. 岩石力学与工程学报，2021，40(8)：1 614–1 627. (ZHANG Yao，LI Bobo，XU Jiang，et al. Study on triaxial compression damage evolution characteristics of coal based on energy dissipation[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(8)：1 614–1 627.(in Chinese)) [3] MARTIN C D，CHRISTIANSSON R. Estimating the potential for spalling around a deep nuclear waste repository in crystalline rock[J]. International Journal of Rock Mechanics and Mining Sciences，2008，46(2)：219–228. [4] CAI M，KASIER P K，TASAKA Y，et al. Generalized crack initiation and crack damage stress thresholds of brittle rock masses near underground excavations[J]. International Journal of Rock Mechanics and Mining Sciences，2004，41(5)：833–847. [5] MARTIN C D，CHANDLER N A. The progressive fracture of Lac du Bonnet granite[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1994，6(31)：643–659. [6] 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 Jiebin，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)) [7] 周辉，孟凡震，卢景景，等. 硬岩裂纹起裂强度和损伤强度取值方法探讨[J]. 岩土力学，2014，35(4)：913–918.(ZHOU Hui，MENG Fanzhen，LU Jingjing，et al. Discussion on methods for calculating crack initiation strength and crack damage strength for hard rock[J]. Rock and Soil Mechanics，2014，35(4)：913–918.(in Chinese)) [8] KATZ O，RECHES Z. Microfracturing，damage，and failure of brittle granites[J]. Journal of Geophysical Research-Solid Earth，2004，109(B1)：B01206. [9] EVERITT R A，LAJTAI E Z. The influence of rock fabric on excavation damage in the Lac du Bonnett granite[J]. International Journal of Rock Mechanics and Mining Sciences，2004，41(8)：1 277–1 303. [10] 刘晓辉，郝齐钧，胡安奎，等. 准静态应变率下单轴煤岩特征应力确定方法研究[J]. 岩石力学与工程学报，2020，39(10)：2 038–2 046. (LIU Xiaohui，HAO Qijun，HU Ankui，et al. Study on determination of uniaxial characteristic stress of coal rock under quasi-static strain rate[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(10)：2 038–2 046.(in Chinese)) [11] PETERSON I M，PAJARES A，LAWN B R，et al. Mechanical Characterization of Dental Ceramics by Hertzian Contacts[J]. Journal of Dental Research，1998，77(4)：589–602. [12] 王超圣，周宏伟，裴浩，等. 甘肃北山地区花岗岩破坏过程能量聚集和耗散特征研究[J]. 矿业科学学报，2018，3(6)：536–542. (WANG Chaosheng，ZHOU Hongwei，PEI hao，et al. Study on energy concentration and dissipation of Beishan granite in Gansu during failure process[J]. Journal of Mining Science and Technology，2018，3(6)：536–542.(in Chinese)) [13] NING J，WANG J，JIANG J，et al. Estimation of crack initiation and propagation thresholds of confined brittle coal specimens based on energy dissipation theory[J]. Journal of Engineering，2018，1(51)：119–134. [14] 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)) [15] 侯志强，王宇，刘冬桥，等. 层状大理岩破裂过程力学特性与能量演化各向异性研究[J]. 采矿与安全工程学报，2019，36(4)：794–804.(HOU Zhiqiang，WANG Yu，LIU Dongqiao，et al. Investigation of the anisotropic mechanical behaviors and energy evolution during uniaxial deformation of interbedded marble[J]. Journal of Mining and Safety Engineering，2019，36(4)：794–804.(in Chinese)) [16] 王亚，万文，赵延林，等. 不同围压下茅口灰岩渐进性破坏的试验研究[J]. 河北工程大学学报：自然科学版，2015，32(3)：94–97.(WANG Ya，WAN Wen，ZHAO Yanlin，et al. Experimental study on progressive failure process of Maokou limestone under different confining pressure[J]. Journal of Hebei University of Engineering：Natural Science，2015，32(3)：94–97.(in Chinese)) [17] 徐荣超，靳一鼎，李日运，等. 龙马溪页岩应力–应变门槛值的各向异性特征研究[J]. 岩土工程学报，2021，43(12)：2 291–2 299.(XU Rongchao，JIN Yiding，LI Riyun，et al. Anisotropic characteristics of stress and strain thresholds of Longmaxi shale[J]. Chinese Journal of Geotechnical Engineering，2021，43(12)：2 291–2 299.(in Chinese)) [18] ZONG Y J，HAN L J，WEI J J，et al. Mechanical and damage evolution properties of sandstone under triaxial compression[J]. International Journal of Mining Science and Technology，2016，4(26)：601–607. [19] 孙雪，李二兵，韩阳，等. 卸荷路径下花岗岩变形与破坏特征试验研究[J]. 地下空间与工程学报，2020，16(3)：665–679.(SUN Xue，LI Erbin，HAN Yang，et al. Experimental study on the deformation and failure characteristics of granite under unloading paths[J]. Chinese Journal of Underground Space and Engineering，2020，16(3)：665–679.(in Chinese)) [20] ZHANG Y J，LIU S J，KOU M M，et al. 3-D Numerical Study on Progressive Failure Characteristics of Marbles under Unloading Conditions[J]. Applied Sciences，2020，11(10)：103875. [21] 王传乐，杜广印，李二兵，等. 北山深部花岗岩常规三轴压缩条件下的强度参数演化及能量耗散[J]. 岩石力学与工程学报，2021，40(11)：2 238–2 248.(WANG Chuanle，DU Guangyin，LI Erbin，et al. Evolution of strength parameters and energy dissipation of Beishan deep granite under conventional triaxial compression[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(11)：2 238–2 248.(in Chinese)) [22] 刘鹏飞，范俊奇，郭佳奇，等. 三轴应力下花岗岩加载破坏的能量演化和损伤特征[J]. 高压物理学报，2021，35(2)：44–53.(LIU Pengfei，FAN Junqi，GUO Jiaqi，et al. Damage and energy evolution characteristics of granite under triaxial stress[J]. Chinese Journal of High Pressure Physics，2021，35(2)：44–53.(in Chinese)) [23] 程虹铭，杨小彬，刘隽嘉，等. 基于损伤演化的砂岩能量参数围压效应研究[J]. 矿业科学学报，2020，5(3)：249–256.(CHENG Hongming，YANG Xiaobin，LIU Juanjia，et al. Confining pressure effect on energy parameters of sandstones based on damage evolution[J]. Journal of Mining Science and Technology，2020，5(3)：249–256.(in Chinese)) [24] 何明明，陈蕴生，韩铁林，等. 不同应力路径下砂岩能耗特征的研究[J]. 岩石力学与工程学报，2015，34(增1)：2 632–2 638.(HE Mingming，CHEN Yunsheng，HAN Tielin，et al. Study of energy properties of sandstone under different loading paths[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(Supp.1)：2 632– 2 638.(in Chinese)) [25] 戴兵，赵国彦，杨晨，等. 不同应力路径下岩石峰前卸荷破坏能量特征分析[J]. 采矿与安全工程学报，2016，33(2)：367–374. (DAI Bin，ZHAO Guoyan，YANG Chen，et al. Energy evolution law of rocks in process of unloading failure under different paths[J]. Journal of Mining and Safety Engineering，2016，33(2)：367–374.(in Chinese)) [26] ULUSAY R. The ISRM suggested methods for rock characterization，testing and monitoring：2007-2014[M]. [S. l.]：Springer，2014. [27] 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，et al. 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)) [28] 黄达，黄润秋，张永兴. 粗晶大理岩单轴压缩力学特性的静态加载速率效应及能量机制试验研究[J]. 岩石力学与工程学报，2012，31(2)：245–255.(HUANG Da，HUANG Runqiu，ZHANG Yongxing，et al. Experimental investigation on static loading rate effects on mechanical properties and energy mechanism of coarse crystal grain marble under uniaxial compression[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(2)：245–255.(in Chinese)) [29] 谢和平，彭瑞东，鞠杨. 岩石变形破坏过程中的能量耗散分析[J]. 岩石力学与工程学报，2004，23(21)：3 565–3 570.(XIE Heping，PENG Ruidong，JU Yang，et al. Energy dissipation of rock deformation and fracture[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(21)：3 565–3 570.(in Chinese)) [30] 谢和平，鞠杨，黎立云，等. 岩体变形破坏过程的能量机制[J]. 岩石力学与工程学报，2008，27(9)：1 729–1 740.(XIE Heping，JU Yang，LI Liyun，et al. energy mechanism of deformation and failure of rock masses[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(9)：1 729–1 740.(in Chinese)) [31] 张志镇，高峰. 受载岩石能量演化的围压效应研究[J]. 岩石力学与工程学报，2015，34(1)：1–11.(ZHANG Zhizhen，GAO Feng. Confining pressure effect on rock energy[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(1)：1–11.(in Chinese)) [32] 马德鹏，周岩，刘传孝，等. 不同卸围压速率下煤样卸荷破坏能量演化特征[J]. 岩土力学，2019，40(7)：2 645–2 652.(MA Depeng，ZHOU Yan，LIU Chuanxiao，et al. Energy evolution characteristics of coal failure in triaxial tests under different unloading confining pressure rates[J]. Rock and Soil Mechanics，2019，40(7)：2 645–2 652.(in Chinese)) [33] KIDYBI?SKI A. Bursting liability indices of coal[J]. International Journal of Rock Mechanics and Mining Sciences，1981，18(6)：295–304.