Rock and Soil Mechanics ›› 2021, Vol. 42 ›› Issue (8): 2099-2108.doi: 10.16285/j.rsm.2021.0076

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental study on the stress wave attenuation effect of filled cracks in rocks under confining pressure

LIU Xin, XU Hong-fa, FAN Peng-xian, GENG Han-sheng, MO Jia-quan, WANG De-rong   

  1. State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, Army Engineering University of PLA, Nanjing, Jiangsu 210007, China
  • Received:2021-01-12 Revised:2021-03-27 Online:2021-08-11 Published:2021-08-16
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (51979280, 11772355) and the Natural Science Foundation of Jiangsu Province (BK20190572).

PDF (Chinese)

189

PDF (English)

7

Abstract: To study the effectiveness of filled cracks as a means of anti-blasting and wave-elimination for underground protective structures, 36 one-dimensional impact tests were carried out on the intact rock specimens and rock specimens with filled cracks using the SHPB apparatus. The transmittance, stress wave velocity and peak stress value of the specimen under different working conditions were obtained. The impacts of confining pressure level, filling thickness and filling material types on stress wave attenuation were analyzed. The results show that, with the increase of the thickness of the filled cracks, the transmittance of the specimen, stress wave velocity, and stress wave peak stress attenuate clearly. The greater the thickness of the filled crack, the smaller the transmission energy of the stress wave during the propagation process. With the increase of confining pressure, the wave- eliminating effect of filled cracks is reduced due to the closure of pores, but still demonstrate stress wave attenuation effect to some extent. Therefore, using particles with higher compressive strength as crack-filling material and increasing filling thickness can effectively improve the wave-eliminating effect in engineering protection.

Key words: filled cracks, confining pressure, SHPB, stress wave, attenuation

CLC Number: 

  • TU 451
[1] PING Qi, SU Hai-peng, MA Dong-dong, ZHANG Hao, ZHANG Chuan-liang, . Experimental study on physical and dynamic mechanical properties of limestone after different high temperature treatments [J]. Rock and Soil Mechanics, 2021, 42(4): 932-942.
[2] LIU Hai-feng, ZHENG Kun, ZHU Chang-qi, MENG Qing-shan, WU Wen-juan. Brittleness evaluation of coral reef limestone base on stress-strain curve [J]. Rock and Soil Mechanics, 2021, 42(3): 673-680.
[3] XIONG Zhong-ming, LÜ Shi-hong, LI Yun-liang, ZHAO Qi-feng, LI Jin, TAN Shu-shun, ZHANG Xiang-rong, ZHU Yu-rong, JIANG Lei, YANG Qi-fan, ZHANG Ning-bo, ZHANG Zi-dong. Research on dynamic properties and energy dissipation of loess under passive confining pressure conditions [J]. Rock and Soil Mechanics, 2021, 42(3): 775-782.
[4] ZHANG Yu-fei, LI Jian-chun, YAN Ya-tao, LI Hai-bo, . Experimental study on dynamic damage characteristics of roughness joint surface based on SHPB [J]. Rock and Soil Mechanics, 2021, 42(2): 491-500.
[5] LI Wei-yi, QIAN Jian-gu, YIN Zhen-yu, ZHOU Chuang, . Simulation of seepage erosion in gap graded sand soil using CFD-DEM [J]. Rock and Soil Mechanics, 2021, 42(11): 3191-3201.
[6] WANG Li-an, ZHAO Jian-chang, YU Yun-yan, . Propagation characteristics of Rayleigh wave in non-homogeneous saturated foundation [J]. Rock and Soil Mechanics, 2020, 41(6): 1983-1990.
[7] HOU Zhi-qiang, WANG Yu, LIU Dong-qiao, LI Chang-hong, LIU Hao. Experimental study of mechanical properties of marble under triaxial unloading confining pressure after fatigue loading [J]. Rock and Soil Mechanics, 2020, 41(5): 1510-1520.
[8] LIU Hong-bo, ZHOU Feng-xi, YUE Guo-dong, HAO Lei-chao. Propagation characteristics of thermoelastic wave in unsaturated soil [J]. Rock and Soil Mechanics, 2020, 41(5): 1613-1624.
[9] TIAN Shu-ping, GAO Meng, WANG Ying, CHEN Qing-sheng. Numerical analysis and field experiment on vibration isolation for Duxseal [J]. Rock and Soil Mechanics, 2020, 41(5): 1770-1780.
[10] LI Zong-ze, JIANG De-yi, FAN Jin-yang, CHEN Jie, LIU Wei, WU Fei, DU Chao, KANG Yan-fei. Experimental study of triaxial interval fatigue of salt rock [J]. Rock and Soil Mechanics, 2020, 41(4): 1305-1312.
[11] WEI Gang, ZHANG Xin-hai, LIN Xin-bei, HUA Xin-xin, . Variations of transverse forces on nearby shield tunnel caused by foundation pits excavation [J]. Rock and Soil Mechanics, 2020, 41(2): 635-644.
[12] FU Hong-yuan, JIANG Huang-bin, QIU Xiang, JI Yun-peng, . Seepage characteristics of single-fracture silty mudstone under low stress and overlying water environment [J]. Rock and Soil Mechanics, 2020, 41(12): 3840-3850.
[13] CAI Yuan-qiang, ZHOU Yue-fu, WANG Peng, SHI Li, WANG Jun, . Calculation on the settlement of dredged slurry treated by vacuum preloading method with consideration of clogging effects [J]. Rock and Soil Mechanics, 2020, 41(11): 3705-3713.
[14] WU Yang, CUI Jie, LI Neng, WANG Xing, WU Yi-hang, GUO Shu-yang, . Experimental study on the mechanical behavior and particle breakage characteristics of hydraulic filled coral sand on a coral reef island in the South China Sea [J]. Rock and Soil Mechanics, 2020, 41(10): 3181-3191.
[15] ZHOU Feng-xi, LIU Hong-bo, CAI Yuan-qiang, . Analysis of propagation characteristics of Rayleigh waves in saturated porothermoelastic media [J]. Rock and Soil Mechanics, 2020, 41(1): 315-324.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] YAO Yang-ping, HOU Wei. Basic mechanical behavior of soils and their elastoplastic modeling[J]. , 2009, 30(10): 2881 -2902 .
[2] XU Jin-ming, QIANG Pei, ZHANG Peng-fei. Texture analysis of photographs of silty clay[J]. , 2009, 30(10): 2903 -2907 .
[3] XIANG Tian-bing, FENG Xia-ting, CHEN Bing-rui, JIANG Quan, ZHANG Chuan-qing. Rock failure mechanism and true triaxial experimental study of specimens with single structural plane under three-dimensional stress[J]. , 2009, 30(10): 2908 -2916 .
[4] SHI Yu-ling, MEN Yu-ming, PENG Jian-bing, HUANG Qiang-bing, LIU Hong-jia. Damage test study of different types structures of bridge decks by ground-fissure[J]. , 2009, 30(10): 2917 -2922 .
[5] XIA Dong-zhou, HE Yi-bin, LIU Jian-hua. Study of damping property and seismic action effect for soil-structure dynamic interaction system[J]. , 2009, 30(10): 2923 -2928 .
[6] XU Su-chao, FENG Xia-ting, CHEN Bing-rui. Experimental study of skarn under uniaxial cyclic loading and unloading test and acoustic emission characteristics[J]. , 2009, 30(10): 2929 -2934 .
[7] ZHANG Li-ting, QI Qing-lan, WEI Jing HUO Qian, ZHOU Guo-bin. Variation of void ratio in course of consolidation of warping clay[J]. , 2009, 30(10): 2935 -2939 .
[8] ZHANG Qi-yi. Study of failure patterns of foundation under combined loading[J]. , 2009, 30(10): 2940 -2944 .
[9] YI Jun, JIANG Yong-dong, XUAN Xue-fu, LUO Yun, ZHANG Yu. A liquid-solid dynamic coupling modelof ultrasound enhanced coalbed gas desorption and flow[J]. , 2009, 30(10): 2945 -2949 .
[10] TAO Gan-qiang, YANG Shi-jiao, REN Feng-yu. Experimental research on granular flow characters of caved ore and rock[J]. , 2009, 30(10): 2950 -2954 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd