摘要
通过对3种不同粗糙度的人造节理试件进行压剪条件下的应力-渗流耦合特性试验,分析了剪切应力、法向位移、节理水力开度及透过率在剪切过程中随剪切位移变化的趋势和规律,获得了节理粗糙度对应力-渗流耦合特性的影响规律。结果表明:节理表面粗糙度是节理特性中对岩体力学和水力学性质有重要影响的指标之一,当节理面在开始产生较小的剪切位移时,节理的应力、位移和水力开度及透过率等特性会产生较大变化,而节理表面粗糙度越大,对节理应力-渗流耦合特性影响越明显。
Based on the stress-seepage coupling experiment of three kinds of man-made joints with different roughness under compression and shear, law of shear stress, normal displacement, joint hydraulic opening and transmittance were analyzed as the shear displacement changed,obtaining the rule of influence of joint roughness on stress- seepage coupling characteristics. The results show that joint roughness has a great effect on the mechanical and hydraulic properties of rock; when the smaller range of shear displacement appears in the joint surface,such stress- seepage coupling characteristics as stress, displacement, hydraulic opening and transmittance will have larger changes,and the more roughness of joint surface,the more apparent effect on the joint stress-seepage.
出处
《山东科技大学学报（自然科学版）》
CAS
2012年第6期30-35,共6页
Journal of Shandong University of Science and Technology(Natural Science)
基金
国家自然科学基金重点项目(51034003)
国家自然科学基金项目(51104094
51274135)
国家重点基础研究发展计划("973"计划)项目(2011CB411906)
教育部博士学科点专项科研基金项目(20103718110001)
山东省优秀中青年科学家科研奖励基金项目(BS2010NJ013)
山东省高等学校科技计划项目(J10LE04)
关键词
节理
粗糙度
应力-渗流耦合
剪胀
水力开度
joint
roughness
stress-seepage coupling
shear dilatation
hydraulic opening
