本文主要研究内容
作者金解放,王杰,郭钟群,梁晨,袁伟,吴越,张睿,王熙博(2019)在《围压对红砂岩应力波传播特性的影响》一文中研究指出:围压可以改变岩石内部微观结构,导致波阻抗发生变化,进而影响应力波在岩石中的透反射能力。为探索围压对岩石应力波传播特性的影响,通过一维应力波理论推导,得到了岩石应力波透射系数和反射系数随波阻抗值的变化关系。用红砂岩制备短试件和长试件,基于动静组合加载实验系统进行不同围压下的应力波传播试验,分析岩石的纵波波速、波阻抗、反射系数和透射系数与围压的关系。根据岩石波阻抗与围压的经验模型,结合理论分析所得的透射系数与波阻抗的关系,得到不同围压下透射系数的理论值,并与相应的试验值进行对比,证明理论分析结果的正确性。综合分析了岩石的纵波波速、波阻抗、透射系数和反射系数与围压的关系,得到围压对红砂岩应力波传播衰减特性的影响规律。结果表明,岩石短试件和长试件的纵波波速及波阻抗与围压之间均具有正向相关性。随着围压的增加,短试件反射系数的绝对值逐渐减小,透射系数逐渐增大,长试件的透射系数逐渐减小,透射系数和反射系数均与围压呈二次函数关系。纵波波速、波阻抗、透射系数及反射系数与围压的关系都表明,增大围压有利于应力波穿过岩石,减小其幅值的衰减。
Abstract
wei ya ke yi gai bian yan dan nei bu wei guan jie gou ,dao zhi bo zu kang fa sheng bian hua ,jin er ying xiang ying li bo zai yan dan zhong de tou fan she neng li 。wei tan suo wei ya dui yan dan ying li bo chuan bo te xing de ying xiang ,tong guo yi wei ying li bo li lun tui dao ,de dao le yan dan ying li bo tou she ji shu he fan she ji shu sui bo zu kang zhi de bian hua guan ji 。yong gong sha yan zhi bei duan shi jian he chang shi jian ,ji yu dong jing zu ge jia zai shi yan ji tong jin hang bu tong wei ya xia de ying li bo chuan bo shi yan ,fen xi yan dan de zong bo bo su 、bo zu kang 、fan she ji shu he tou she ji shu yu wei ya de guan ji 。gen ju yan dan bo zu kang yu wei ya de jing yan mo xing ,jie ge li lun fen xi suo de de tou she ji shu yu bo zu kang de guan ji ,de dao bu tong wei ya xia tou she ji shu de li lun zhi ,bing yu xiang ying de shi yan zhi jin hang dui bi ,zheng ming li lun fen xi jie guo de zheng que xing 。zeng ge fen xi le yan dan de zong bo bo su 、bo zu kang 、tou she ji shu he fan she ji shu yu wei ya de guan ji ,de dao wei ya dui gong sha yan ying li bo chuan bo cui jian te xing de ying xiang gui lv 。jie guo biao ming ,yan dan duan shi jian he chang shi jian de zong bo bo su ji bo zu kang yu wei ya zhi jian jun ju you zheng xiang xiang guan xing 。sui zhao wei ya de zeng jia ,duan shi jian fan she ji shu de jue dui zhi zhu jian jian xiao ,tou she ji shu zhu jian zeng da ,chang shi jian de tou she ji shu zhu jian jian xiao ,tou she ji shu he fan she ji shu jun yu wei ya cheng er ci han shu guan ji 。zong bo bo su 、bo zu kang 、tou she ji shu ji fan she ji shu yu wei ya de guan ji dou biao ming ,zeng da wei ya you li yu ying li bo chuan guo yan dan ,jian xiao ji fu zhi de cui jian 。
论文参考文献
论文详细介绍
论文作者分别是来自煤炭学报的金解放,王杰,郭钟群,梁晨,袁伟,吴越,张睿,王熙博,发表于刊物煤炭学报2019年02期论文,是一篇关于应力波传播论文,围压论文,波阻抗论文,透反射系数论文,纵波波速论文,煤炭学报2019年02期论文的文章。本文可供学术参考使用,各位学者可以免费参考阅读下载,文章观点不代表本站观点,资料来自煤炭学报2019年02期论文网站,若本站收录的文献无意侵犯了您的著作版权,请联系我们删除。