充填裂隙渗流特性实验研究  

Experimental Research of Seepage Characteristic for Filled Fracture

作　　者：速宝玉[1] 詹美礼[1] 张祝添[1] 

机构地区：[1]河海大学水电系,南京水利科学研究院水工所

出　　处：《岩土力学》1994年第4期46-52,共7页Rock and Soil Mechanics

基　　金：国家八.五攻关资助课题

摘　　要：本文通过充填裂隙模型实验研究探讨了充填裂隙渗流特性。实验表明，充填裂隙的渗透性主要取决于充填材料的颗粒组成及充填材料在充填后的孔隙率，与充填料的颗粒直径、裂隙宽度之比值有关。在实验研究及总结前人对孔隙介质渗透性研究成果的基础上，经理论分析推演得出了充填裂隙渗透性半经验理论公式，并与实验结果进行了对比，论证了半经验理论公式的合理性。In this paper,the seepage characteristic of filled frcture has been discussed though the model expeimental study. The result shows that the permeability of filled fractre is mainly determined by the granulometric composition of the filling matenal and its porosity after filling. It is related to the ratio of the particle diameter of the filling material and the widthof the fracture.On the basis ofexperimental research ad the induction of predecessors' research results,a semi-empirical formula for the permeability of the frlled fracture is obtained through theoreticalal analysis . The formula is xompared with test data.Through that, the rationality of the semi-empirical formula is verified.

关 键 词：充填裂隙 渗流特性 模型实验 实验研究 

分 类 号：O357.3[理学—流体力学]