| 朱立*,刘卫群,王甘林.振动对充填裂隙渗透率影响的实验研究[J].实验力学,2012,27(2):201~206 |
| 振动对充填裂隙渗透率影响的实验研究 |
| Experimental Study the Influence of Vibration on the Permeability of Fractured Sandstone with Sediment Particles |
| 投稿时间：2011-04-01 修订日期：2011-10-19 |
| DOI： |
| 中文关键词: 振动 人工充填 泥沙颗粒 裂隙 渗透率 |
| 英文关键词:vibration artificial filling sediment particles fractured sandstone permeability |
| 基金项目:国家重点基础研究发展计划(973)项目(2009CB219605),国家自然科学基金项目(41074040),江苏省普通高校研究生科研创新计划资助项目(CXLX11-0313) |
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| 中文摘要: |
| 为了研究振动和充填泥沙的共同作用对裂隙岩石渗透率的影响,通过对裂隙试件在充填和振动后条件下的渗流实验,得到了频率和振幅与充填裂隙岩石渗透率的关系曲线。结果表明,充填泥沙后的相对渗透率低于充填前,最小降幅为10.19%,最大降幅为59.74%。在相同的振幅下,试件的相对渗透率随频率的增加都基本呈下降趋势;振动后的渗透率低于振动前的渗透率;充填试件在较大频率振动下,渗透率减小的更为显著。在相同的频率下,充填试件振动后的渗透率基本上都减小了,最小降幅为8.90%,最大降幅为51.23%;而未充填试件振动后的渗透率与振幅存在一定关系;相对渗透率与振幅的变化之间存在拐点,相对渗透率并没有随着振幅的增加而一直减小。 |
| 英文摘要: |
| In order to study the effects of both vibration and sediment particles on the permeability of fractured sandstone, the seepage experiment of fractured sandstone after filling and vibration was carried out to get the relationship between the frequency, amplitude and the permeability. The results show that, the relative permeability of specimen after filling is lower than before,the minimum decrease is 10.19% and the maximum is 59.74%. The permeability after vibration is lower than before, the relative permeability decreases with the increase of frequency under the same amplitude, and the decrease is more obvious under higher frequency. And that, the permeability of specimen filled with sediment particles decreases under the same frequency, the minimum decrease is 8.90% while the maximum is 51.23%, and the permeability of specimens without filling has certain relations with amplitude. Moreover, there is an inflection point between the relative permeability and amplitude, and the relative permeability didn't decrease all the time with the increase of amplitude. |
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