化学腐蚀下深部巷道高强围岩力学性能的实验研究 .pdfVIP

学兔兔 煤 炭 工 程 2013年第3期 doi：10．1 1799／ee201303036 化学腐蚀下深部巷道高强围岩力学性能的 实验研究 刘永胜，杨猛猛 (华东交通大学土木建筑学院，江西南昌 330013) 摘 要：深部巷道复杂的地质条件是影响巷道围岩力学性能及其稳定性的重要因素。文章模 拟深部巷道复杂的地下环境，配制了不同离子浓度和酸碱度的化学溶液，将岩样放置在上述溶液 中浸泡，然后开展高强岩石的轴压实验。实验得到不同条件下的岩石强度和基本力学参数。实验 结果表明，水浸泡、中性盐和碱性溶液对高强岩石的力学性能影响不大，而酸性环境对岩石的强 度影响较大。另外，酸性越强，影响越明显；浸泡时间越长，影响越明显。 关键词：深部巷道；围岩；化学腐蚀；力学性能 中图分类号：TD315 文献标识码：A 文章编号：1671—0959(2013)03—0108—03 Experiment Study on Mechanics Performances of High Strength Surrounding Rock along Mine Roadway in Deep Mine Under Chemical Corrosion LIU Yong—sheng，YANG Meng—meng (School of Civil Engineering and Architecture，East China Jiaotong University，Nanehang 33001 3，China) Abstract：The complicated geological conditions of the deep mine roadway would be the important factor affected to the mechanics features and stability of the surrounding rocks along the gateway．The paper sinmlated the complicated underground environment of the deep mine roadway．The ehemieal solution with dif rent ion concentrations and PH was prepared，the rock samples were and put and soaked in the above solution and then an axial compression experiment of the high strength rock was conducted．The rock strength and basic mechanics parameters under the different conditions were ()btained．The experiment results showed that the soaking in water．neutra1 salt and alkaline solution would have small