脆塑性非完全充填裂隙渗流特性研究  

Study on Seepage Characteristics of Brittle-plastic Incomplete Filling Fissures

作　　者：张哲元 陈鑫[1] 张森森[1] Zhang Zheyuan;Chen Xin;Zhang Sensen(School of Mechanics and Safety Engineering,Zhengzhou University,Henan Zhengzhou 450001)

机构地区：[1]郑州大学力学与安全工程学院,河南郑州450001

出　　处：《山东煤炭科技》2021年第9期174-175,183,共3页Shandong Coal Science and Technology

摘　　要：为研究脆塑性非完全充填裂隙的渗流特性,采用微机控制的万能材料试验机,通过轴向压缩、侧向约束,以水泥砂浆混合物作为裂隙壁,砂岩、橡皮作为脆性和弹塑性充填介质,研究同材料、不同隙宽下的非完全充填裂隙的渗流特性。研究结果表明:当充填宽度减小时,流量趋于最小值的位移也逐渐减小;脆性充填裂隙的应力-流量曲线与弹塑性充填裂隙的应力-流量曲线相比,整体曲线趋势相似。In order to study the seepage characteristics of brittle-plastic incomplete filling cracks,a microcomputer-controlled universal material testing machine is used to study the seepage characteristics of incomplete filled cracks with the same material and different gap width by axial compression and lateral restraint,using cement mortar mixture as fracture wall and sandstone and rubber as brittle and elastic-plastic filling media.The results show that when the filling width decreases,the displacement that the flow tends to the minimum decreases gradually,and the overall curve trend of the stress-flow curve of brittle filling fracture is similar to that of elastic-plastic filling crack.

关 键 词：脆塑性 充填裂隙 渗流特性 

分 类 号：TU45[建筑科学—岩土工程]