| 金满铜矿板岩各向异性试验研究 |
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| 引用本文： | 李争荣,余贤斌,陈超.金满铜矿板岩各向异性试验研究[J].有色金属(矿山部分),2011,63(3). |
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| 作者姓名： | 李争荣 余贤斌 陈超 |
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| 作者单位： | 昆明理工大学,昆明,650093 |
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| 摘 要： | 对云南金满铜矿的灰色和紫色两种板岩进行单轴压缩试验。试验结果表明:两种板岩都具有明显的各向异性。灰色板岩在平行层理加载下的抗压强度、平均弹性模量和平均泊松比与垂直层理加载的比值分别为:0.621,.668,.68;紫色板岩的比值为1.63,8.383,4.64。当体积应变εv<0和泊松比μ>0.5时就能反映出岩石在加载过程中产生了扩容现象。在平行层理加载下的体积应变在较低的应力(破坏载荷的5%～20%)处就产生了明显的扩容,而在垂直层理加载下的体积应变临近破坏时才出现扩容现象。
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| 关 键 词： | 各向异性 单轴压缩 体积应变 弹性模量 泊松比 扩容 |
Experimental study on the anisotropy of schist samples in Jinman Copper Mine |
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| Authors: | LI Zhengrong YU Xianbin CHEN Chao |
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| Affiliation: | LI Zhengrong,YU Xianbin,CHEN Chao(Kunming University of Science and Technology,Kunming 650093,China) |
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| Abstract: | Uniaxial compressive tests were carried out with two types of slate samples from Jinman copper mine,Yunnan province.Experiment results demonstrated that both rocks had obvious anisotropy.Values of compressive strength,average elastic modulus and the average Poisson's ratio of the grey slate subjected to loading parallel to bedding stratum corresponding to values subjected to loading perpendicular to bedding were 0.62,1.66 and 8.68 respectively.Which of them in purple slate were 1.63,8.38 and 34.64 respectiv... |
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| Keywords: | anisotropy uniaxial compression volume strain elastic modulus Poisson's ratio dilation |
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