破碎岩体渗流的试验及理论研究综述  

Summarization on the Experimental and Theoretical Researches of the Vadose in Broken Lithosome

作　　者：李顺才[1] 陈占清[2] 缪协兴[2] 

机构地区：[1]徐州师范大学机电工程学院,江苏徐州221116 [2]中国矿业大学理学院,江苏徐州221008

出　　处：《山东科技大学学报（自然科学版）》2008年第3期37-43,共7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(50634050);国家自然科学基金项目(50674087);江苏省自然科学基金项目(BK2007029)

摘　　要：阐述了破碎岩体渗流的研究意义,对其试验及理论研究现状分别进行了总结,给出了破碎岩体通过试验得到的各种非线性渗流公式,指出承压破碎岩体的渗流随着孔隙率的减小,渗透率减小,而Darcy流偏离因子的绝对值增加;然后根据破碎岩体渗流的非稳态非线性渗流动力学模型,通过平衡态的稳定性分析,指出破碎岩体渗流动力系统存在鞍结分岔及折叠突变;最后展望了破碎岩体渗流的研究趋势,指出破碎岩体变形场与渗流场的动态耦合及温度场与渗流场的耦合研究有待于深入。The research significance of vadose in broken lithosome is expounded, and the corresponding research status concerning the experiment and the theory are reviewed respectively, and some important formulas of nonlinear vadose in broken lithosome by means of experiments are listed, accordingly, it is pointed out that with the decrease of the porosity of the confined broken lithosome, its permeability reduces and the absolute value of coefficient deviated from the Darcy-vadose increases; then, according to the non-steady and non-linear dynamic model of vadose, and by analyzing the stability of the steady-states, it is pointed out that there are saddle-node bifurcations and fold catastrophes in the dynamic vadose systems of broken lithosome; at last, the corresponding research trend is expected. And the research status indicates that the dynamic coupling between the deformation field and the vadose field, and the coupling between the temperature field and the vadose field need to be studied deeply.

关 键 词：破碎岩体 渗流 研究现状 分岔 突变 

分 类 号：O357.3[理学—流体力学]