| 基于点荷载试验武当群片岩的风化分组及强度特性研究 |
| |
| 引用本文： | 张宇,干泉,余飞,陈善雄.基于点荷载试验武当群片岩的风化分组及强度特性研究[J].岩土力学,2012,33(Z1):229-232. |
| |
| 作者姓名： | 张宇 干泉 余飞 陈善雄 |
| |
| 作者单位： | 1. 中国科学院武汉岩土力学研究所 岩土力学与工程国家重点实验室，武汉 430071； 2. 中机三勘岩土工程有限公司，武汉 430030 |
| |
| 摘 要： | 针对中元古界武当山群（Pt2wd）片岩,开展大量的现场点荷载试验，基于概率统计的方法，确定全风化、强风化、中等风化（Pt2wd）片岩的点荷载强度（垂直岩层）的均值、方差以及分组区间。通过开展沿片岩不同层面方向的点荷载试验，分析平行岩层和垂直岩层点荷载强度的相关性，确定该种片岩的各向异性指数；结合室内单轴抗压强度的试验结果，给出适用于武当群片岩的点荷载强度IS与单轴抗压强度Rc的经验关系式
|
| 关 键 词： | 点荷载 Pt2wd片岩 风化 各向异性指数 单轴抗压强度 |
| 收稿时间： | 2012-05-09 |
Study of weathering grouping and strength characteristics of Wudang group schist based on point load testing |
| |
| ZHANG Yu,GAN Quan,YU Fei,CHEN Shan-xiong.Study of weathering grouping and strength characteristics of Wudang group schist based on point load testing[J].Rock and Soil Mechanics,2012,33(Z1):229-232. |
| |
| Authors: | ZHANG Yu GAN Quan YU Fei CHEN Shan-xiong |
| |
| Institution: | 1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2.The Third Institute of Geotechnical Investigation and Design of Machinery Industry of Geotechnical Engineering Co., Ltd., Wuhan 430030, China |
| |
| Abstract: | A series of on-site point load tests for the Middle Proterozoic Wudangshan Group(Pt2wd) schist are carried out based on the probability theory and statistics,to determine the grouping interval of the point load strength(vertical rock) of the completely,strongly and moderately weathered(Pt2wd) schist.The point load tests at different levels along the schist direction are carried out;the correlation of point load strength between parallel to the rock and vertical rock is analyzed;and the anisotropy index Iaof the schist is determined;combined with the results of uniaxial compressive strength test indoor,an empirical correlation relationship of the point load strength ISand uniaxial compressive strength Rcof Wudang Group schist is given. |
| |
| Keywords: | point load Pt2wd schist weathering anisotropy index uniaxial compressive strength |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
