| 岩石闭合裂缝的压剪断裂形态 |
| |
| 引用本文： | 周翠云,王良之,龙湘桂,周群力.岩石闭合裂缝的压剪断裂形态[J].岩石力学与工程学报,1999,18(3):259-259. |
| |
| 作者姓名： | 周翠云 王良之 龙湘桂 周群力 |
| |
| 作者单位： | 水利部湖南省水利水电勘测设计研究院,长沙,410007 |
| |
| 基金项目： | 国家自然科学基金!59079407 |
| |
| 摘 要： | 介绍了对含闭合裂缝岩石试件在达到峰值压剪荷载时卸荷的裂缝断裂形态观察结果。结果表明，原有闭合裂缝已张开；裂缝尖端区域岩石晶粒已破碎，并可见碎粒剪切错动与偏转；次生裂缝组的走向与微裂区的形状呈不对称的桑叶状，与张开裂缝（切口）尖端岩石断裂形态相似；岩石压剪主剪断面沿该破裂区上部边界扩展。
|
| 关 键 词： | 岩石断裂力学 闭合裂缝 压剪断裂形态 |
| 收稿时间： | 1998-1-4 |
| 修稿时间： | 1998-4-20 |
COMPRESSION SHEAR FRACTURE FORM OF ROCK WITH CLOSE CRACK |
| |
| Zhou Cuiyun,Wang Liangzhi,Long Xianggui,Zhou Qunli.COMPRESSION SHEAR FRACTURE FORM OF ROCK WITH CLOSE CRACK[J].Chinese Journal of Rock Mechanics and Engineering,1999,18(3):259-259. |
| |
| Authors: | Zhou Cuiyun Wang Liangzhi Long Xianggui Zhou Qunli |
| |
| Abstract: | The observational result of crack fracture form for rock samples with close crack under unloading after the peak compression shear load. The original close crack becomes open and rock grains of crack tip zone are broken. The shear shift and deflection of broken particle can be seen. The induced cracks are of the shape of asymmetrial mulberry leaf, which is similar to the fracture form of open crack (notch ) tip. The principal shear fracture plane of rock under compression shear state is to propagate along the upper boundary of the fracture zone. |
| |
| Keywords: | rock fracture mechanics close crack compression shear fracure form |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《岩石力学与工程学报》浏览原始摘要信息 |
|
点击此处可从《岩石力学与工程学报》下载全文 |
