动荷载作用下砂岩力学特性试验研究
|
摘要
为研究岩石的动态强度和破坏特性,采用霍普金森压杆(SHPB)实验装置,对长径比为1的砂岩进行不同应变率下冲击压缩试验,试验结果表明:随着应变率的增大,砂岩动态强度和峰值应变均增大,且呈现幂函数型增长,表现明显的应变率效应。砂岩破裂面沿着轴向方向,应变率较低时,砂岩破坏的尺寸较大;应变率较大时,砂岩碎块尺寸变小、数量增加。
引文
[1] KUMAR A.The effect of stress rate and temperature on the strength of basalt and granite,Geophysics,1968,33(3):501-510.
[2] FRIEDMAN M,PERKINS R D,GREEN S J.Observation of brittle-deformation features at the maximum stress of westly granite and solenhofen limestone[J].International Journal of Rock Mechanics and Mining Sciences &Geomechanics Abstracts,1970,7(3):297-306.
[3] PERKINS R D,GREEN S J.Uniaxial stress behavior of porphyritic tonalite at strain rates to 103/second[J].International Journal of Rock Mechanics and Mining Sciences &Geomechanics Abstracts,1970,7(5):527-528,IN5-IN6,529-535.
[4] JANACH W.The role of bulking in brittle failure of rock under rapid compression[J].International Journal of Rock Mechanics and Mining Sciences &Geomechanics Abstracts,1976,13(6):177-186.
[5] 于亚伦.高应变率下的岩石动载特性[J].北京科技大学学报,1992,14(2):128-134.
[6] 陆岳屏,杨业敏,寇绍全,等.霍布金生压力杆测定砂岩、石灰岩动态破碎应力和杨氏模量[J].岩土工程学报,1983,5(3):28-38.
[7] 夏昌敬,谢和平,鞠杨.孔隙岩石的SHPB试验研究[J].岩石力学与工程学报,2006(5):896-900.
[8] DEMIRDAG S,TUFEKCI K,KAYACAN R,et al.Dynamic mechanical behavior of some carbonate rocks[J].International Journal of Rock Mechanics and Mining Sciences,2010,47(2):307-312.
[9] 刘石,许金余,刘军忠,等.绢云母石英片岩和砂岩的SHPB试验研究[J].岩石力学与工程学报,2011,30(9):1864-1871.
[10] ZHOU Y X,XIA K,LI X B,et al.Suggested methods for determining the dynamic strength parameters and mode-I fracture toughness of rock materials[J].International Journal of Rock Mechanics &Mining Sciences,2012(49):105-112.
[2] FRIEDMAN M,PERKINS R D,GREEN S J.Observation of brittle-deformation features at the maximum stress of westly granite and solenhofen limestone[J].International Journal of Rock Mechanics and Mining Sciences &Geomechanics Abstracts,1970,7(3):297-306.
[3] PERKINS R D,GREEN S J.Uniaxial stress behavior of porphyritic tonalite at strain rates to 103/second[J].International Journal of Rock Mechanics and Mining Sciences &Geomechanics Abstracts,1970,7(5):527-528,IN5-IN6,529-535.
[4] JANACH W.The role of bulking in brittle failure of rock under rapid compression[J].International Journal of Rock Mechanics and Mining Sciences &Geomechanics Abstracts,1976,13(6):177-186.
[5] 于亚伦.高应变率下的岩石动载特性[J].北京科技大学学报,1992,14(2):128-134.
[6] 陆岳屏,杨业敏,寇绍全,等.霍布金生压力杆测定砂岩、石灰岩动态破碎应力和杨氏模量[J].岩土工程学报,1983,5(3):28-38.
[7] 夏昌敬,谢和平,鞠杨.孔隙岩石的SHPB试验研究[J].岩石力学与工程学报,2006(5):896-900.
[8] DEMIRDAG S,TUFEKCI K,KAYACAN R,et al.Dynamic mechanical behavior of some carbonate rocks[J].International Journal of Rock Mechanics and Mining Sciences,2010,47(2):307-312.
[9] 刘石,许金余,刘军忠,等.绢云母石英片岩和砂岩的SHPB试验研究[J].岩石力学与工程学报,2011,30(9):1864-1871.
[10] ZHOU Y X,XIA K,LI X B,et al.Suggested methods for determining the dynamic strength parameters and mode-I fracture toughness of rock materials[J].International Journal of Rock Mechanics &Mining Sciences,2012(49):105-112.