Experimental Study on the Influence of Joint Fillers on the Crack Initiation Strength of Rock Masses

QU Zhihao; HUANG Feng; Zheng Aichen; GAO Xiaoye

doi:10.13204/j.gyjzG21062915

Volume 52 Issue 8

Aug. 2022

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Abstract

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2022 > 52(8): 175-179

QU Zhihao, HUANG Feng, Zheng Aichen, GAO Xiaoye. Experimental Study on the Influence of Joint Fillers on the Crack Initiation Strength of Rock Masses[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(8): 175-179. doi: 10.13204/j.gyjzG21062915

Citation:

QU Zhihao, HUANG Feng, Zheng Aichen, GAO Xiaoye. Experimental Study on the Influence of Joint Fillers on the Crack Initiation Strength of Rock Masses[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(8): 175-179. doi: 10.13204/j.gyjzG21062915

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Experimental Study on the Influence of Joint Fillers on the Crack Initiation Strength of Rock Masses

doi: 10.13204/j.gyjzG21062915

State Key Laboratory of Mountain Bridge and Tunnel Engineering, School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China

Received Date: 2021-06-29
Available Online: 2022-12-01

Abstract

Abstract

Three kinds of materials—cement, mud and gypsum, were used as fillers to fill jointed rock specimens with single crack, and uniaxial compression tests were conducted on the specimens. The analytical expression about initiation strength of crack for closed crack under uniaxial compression was established and numerical simulations were performed to further study it. The results showed that under uniaxial compression, the initiation strength of crack for specimens simulated by the friction coefficient theory was basically consistent with the peak strength from indoor tests. The larger the friction coefficients of fillers were, the less easier the damage of jointed rock masses, and the initiation strength of crack for rock masses with fillers was greatly improved than that without fillers. The peak strength of cement-filled jointed specimens was highest and mud-filled jointed specimens was lowest. Shear failure was the main failure mode of specimens filled with mud, the failure form of specimens filled with cement and gypsum was complex. With the increase of filler strength, the failure mode of jointed rock mass would change from shear failure to tension failure.
- filler,
- closed crack,
- friction coefficient,
- indoor test,
- initiation strength of crack

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References(16)

References

[1]	吴雪萍, 邱一平, 曹兴国, 等. 单轴压缩下含闭合裂纹大理岩板裂纹扩展的研究J］. 实验室研究与探索, 2015(7):30-33.
[2]	WU S, LI K, YANG Z, et al. Complex analytical study of the stability of tunnel-surrounding rock in a layered jointed rock mass[J]. Mathematical Problems in Engineering, 2020. DOI: 10.1155/2020/5473059.
[3]	KULATILAKE P, HE W, UM J, et al. A physical model study of jointed rock mass strength under uniaxial compressive loading[J]. International Journal of Rock Mechanics & Mining Sciences, 2015, 34(3/4). DOI: 10.1016/S1365-1609(97)00123-8.
[4]	XIONG L X, CHEN H J, LI T B, et al. Experimental study on the uniaxial compressive strength of artificial jointed rock mass specimen after high temperatures[J]. Geomechanics and Geophysics for Geo-Energy and Geo-Resources, 2018(4): 201-213.
[5]	邵伟, 陈有亮, 周有成. 单轴压缩条件下含闭合双裂纹体岩石类材料的破坏机理[J]. 上海大学学报(自然科学版), 2011, 17(2): 216-220.
[6]	LIU G, JIANG Q H, XIONG F, et al. Experimental study of crack propagation and deformation of multiple-jointed rock mass[J]. Rock and Soil Mechanics, 2016, 37:151-158.
[7]	张波, 李术才, 张敦福,等. 含充填节理岩体相似材料试件单轴压缩试验及断裂损伤研究[J]. 岩土力学, 2012(6):1647-1652.
[8]	史玲,蔡美峰,赵坚.充填节理破坏机理及实验[J].北京科技大学学报, 2012, 34(3): 253-259.
[9]	周喆, 张亮, 侯恒军. 填充对节理岩体力学特性及能量演化的影响研究[J]. 水利水电技术, 2020,51(7):117-123.
[10]	刘婷婷, 李建春, 李海波,等. 剪切速率对平直充填节理的剪切力学特性影响研究[J]. 岩土力学, 2017,38(7):1967-1973 ,1989.
[11]	杨庆, 王超. 基于扩展有限元的压剪复合断裂数值分析[J]. 岩土力学, 2011(增刊2):568-572.
[12]	王辉, 高召宁, 孟祥瑞,等. 单一闭合裂纹在单轴压缩下对岩体破裂过程的影响[J]. 中国安全生产科学技术, 2015(2):56-61.
[13]	刘福生, 薛一峰, 杨杰. 填充节理直剪试验颗粒流模拟[J]. 水利水电技术, 2020, 51(3):163-174.
[14]	高啸也. 断层破碎带隧道围岩变形破坏机理研究[D]. 重庆:重庆交通大学, 2018.
[15]	李银平, 伍佑伦, 杨春和. 岩石类材料滑动裂纹模型[J]. 岩石力学与工程学报, 2007, 26(2):278-284.
[16]	YOON J. Application of experimental design and optimization to PFC model calibration in uniaxial compression simulation[J]. International Journal of Rock Mechanics & Mining Sciences, 2007, 44(6):871-889.

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