Dynamic properties of the grouting-reinforced rock mass and its damage mechanics model

PDF(1659 KB)

Journal of Vibration and Shock ›› 2017, Vol. 36 ›› Issue (10) : 63-68.

Huang Ming1,2 Tang Ke1 Zhan Jin-wu1 Deng Tao1

Author information +

History +

Abstract

It is very significant to carry out the qualitative and quantitative research of the dynamic properties of grouting-reinforced rock mass, which directly reflects the grouting reinforcement effect of broken rock mass and its dynamic stability in engineering. By selecting typical fragments and simplifying the simulation of grouting process, the grouting-reinforced rock mass was prepared using the core machine. In the process, uniformity of rock crack was promised and randomness of the grout diffusion was neglected. Dynamic shock tests of the grouting-reinforced rock mass was carried out by the Split Hopkinson Pressure Bar. The results show that, the quality ratio between the rock mass and cement plays an important role on the dynamic properties of grouting-reinforced rock mass, and the peak strength can reach the maximum under the optimal ratio. In addition, based on the continuum damage theory and statistical strength theory, the dynamic damage mechanics model of the grouting-reinforced rock mass is presented, and the model parameters are fitted, which have a great association with the sample components. There is a good coherence between stress-strain curves calculated from the proposed model and that from experimental data directly. The research results may extend the theory study fields of the properties of grouting-reinforced rock mass.

Key words

grouting-reinforced rock mass / dynamic properties / water content / damage mechanics model

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Huang Ming1,2 Tang Ke1 Zhan Jin-wu1 Deng Tao1 . Dynamic properties of the grouting-reinforced rock mass and its damage mechanics model[J]. Journal of Vibration and Shock, 2017, 36(10): 63-68

References

[1] 周建昆, 吴坚. 岩石公路隧道塌方风险事故树分析[J]. 地下空间与工程学报, 2008, 4(6): 991-998. (ZHOU Jian-kun, WU Jian. Fault tree analysis of the collapse risk in rock highway tunnel[J]. Chinese Journal of Underground Space and Engineering, 2008, 4(6): 991-998. (in Chinese))
[2] 谢忠球, 万志清, 钱海涛. 抽水引起岩溶区路基塌陷的机理分析及其控制[J]. 公路,2006,7(7):25-29.(XIE Zhongqiu, WAN Zhiqin,QIAN Haitao. A study on mechanism of karst collapse of subgrade induced by pum-ping and its control [J]. Highway, 2006, 7(7): 25-29.(in Chinese))
[3] 张旷成, 李继民. 杭州地铁湘湖站“08.11.15”基坑坍塌事故分析[J]. 岩土工程学报, 2010, 32(增刊1): 338–342. (ZHANG Kuang-cheng, LI Ji-min. Accident analysis for “08.11.15” foundation pit collapse of Xianghu station of Hangzhou metro[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(S1): 338-342. (in Chinese))
[4] 詹松, 汤连生, 杨文浦. 广东高速公路路堑边坡失稳原因与防治分析[J]. 工程地质学报, 2006, 14(2): 184-188. (ZHAN Song, TANG Lian-sheng, YANG Wen-fu. Causes and preventive measures of cut slope failures on expressways in Guangdong province[J]. Journal of Engineering Geology, 2006, 14(2): 184-188. (in Chinese))
[5] 陈炎光，陆士良，徐永圻. 中国煤矿巷道围岩控制[M]. 徐州：中国矿业大学出版社，1994.(CHEN Yanguang，LU Shiliang，XU Yongqi. Control technology of surrounding rock of roadway in China[M]. Xuzhou: China University of Mining and Technology Press, 1994.(in Chinese))
[6] 温帅, 汪家林, 刘道华, 等. 辉绿岩脉复合灌浆试验加固效果研究[J]. 岩石力学与工程学报, 2009, 28(6): 1231-1238.(WEN Shuai，WANG Jialin，LIU Daohua，et al. Experimental research on reinforcement effect of compound grouting on diabase dikes[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(6): 1231-1238.(in Chinese))
[7] 张民庆，张文强，孙国庆. 注浆效果检查评定技术与应用实例[J]. 岩石力学与工程学报, 2006, 25(增2): 3909-3918.(ZHANG Minqing, ZHANG Wenqiang, SUN Guoqing. Evaluation technique of grouting effect and its application to engineering[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(Supp.2)：3909-3918. (in Chinese))
[8] 曹胜根，刘长友. 高档工作面断层破碎带顶板注浆加固技术[J]. 煤炭学报，2004，29(5)：545-549.(CAO Shenggen，LIU Changyou. Grouting reinforcement technique in fault broken roof in working face with individual props[J]. Journal of China Coal Society, 2004, 29(5): 545-549.(in Chinese))
[9] 牛学良,付志亮,高延法.岩石注浆加固实验与巷道稳定性制[J].采矿与安全工程学报, 2007,2 4(4):439-443. (NIU Xue-liang,FU Zhi-liang, GAO Yan-fa. Grouting Reinforcement Test of Surrounding Rocks and Stability Controlling of Roadways[J]. Journal of Mining&Safety Engineering, 2007, 24(4): 439-443.(in Chinese))
[10] 葛家良. 软岩巷道灌浆加固机制及灌浆技术若干问题的研究[D]. 北京：中国矿业大学,1995.(Ge Jialiang. Grouting reinforcement mechanics in roadway of soft rock and several issues in grouting techniques[D]. Beijing: China University of Mining and Technology, 1995.(in Chinese))
[11] 许宏发, 耿汉生, 刘伟东, 王晨. 基于BQ的破碎岩体注浆加固强度增长理论[J]. 岩土工程学报, 2014, 36(6): 1147-1151.(XU Hong-fa, GENG Han-sheng, LI Wei-dong, WANG Chen. Theory of strength increment of grouting-reinforced bodies for broken rock mass based on BQ[J].Chinese Journal of Geotechnical Engineering, 2014, 36(6): 1147-1151.(in Chinese))
[12] 谢理想, 赵光明, 孟祥瑞. 岩石在冲击载荷下的过应力本构模型研究 [J]. 岩石力学与工程学报, 2013, 32(增1): 2772-2781.(XIE Li-xiang, ZHAO Guang-ming, MENG Xiang-rui. Research on excess stress constitutive model of rock under impact load[J]. Chinese Journal of Rock Mechanics and Engineering, 2013, 32(Supp.1): 2772-2781.(in Chinese))
[13] 宫凤强, 李夕兵, 刘希灵. 三轴SHPB加载下砂岩力学特性及破坏模式试验研究[J]. 振动与冲击, 2012, 31(8): 29-32. (Gong Feng-qiang, Li Xi-bing, Liu Xi-ling. Test for sandstone mechanical properties and failure model triaxial SHPB loading[J]. Journal of vibration and shock, 2012, 31(8): 29-32)
[14] 樊鸿, 张盛, 王启智. 用应变片法确定混凝土动态起裂时间的研究[J]. 振动与冲击, 2010. 29(1): 153-156. Fan Hong, Zhang Sheng, Wang Qi-zhi. Determinating dynamic fracture initiation time for concrete with strain gauge method [J]. Journal of vibration and shock, 2010. 29(1): 153-156
[15] SHAN R, JIANG Y, LI B. Obtaining dynamic complete stress–strain curves for rock using the split Hopkinson pressure bar technique [J]. International Journal of Rock Mechanics and Mining Sciences, 2000, 37(6): 983-92.
[16] 唐春安. 岩石破裂过程中的灾变[M]. 煤炭工业出版社, 1993. (TANG Chun an. Catastrophe in rock failure process[M]. Beijing: China Coal Industry Publishing House, 1993.(in Chinese)