岩石膨胀界限抗渗强度及在底板突水评价中应用  

Rock Expansion Boundary Anti-Permeability Strength and Its Application in the Coal Mine Floor Water Inrush Evaluation

作　　者：段宏飞[1] 姜振泉[1] 王一栋[1] 邵明喜 赵丽娟[1] 朱前林[3] 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221116 [2]兖矿集团杨村煤矿,山东邹城272118 [3]中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,湖北武汉430071

出　　处：《采矿与安全工程学报》2012年第1期95-100,共6页Journal of Mining & Safety Engineering

基　　金：江苏省普通高校研究生科研创新计划项目(CXZZ11-0306);中国矿业大学青年科研基金项目(2009A029)

摘　　要：在岩石全应力应变伺服渗透试验的基础上,提出了岩石膨胀界限抗渗强度的概念,并在此基础上建立了底板突水评价模型,模型考虑了底板岩层有效隔水层厚度、岩性、岩体完整程度以及膨胀界限抗渗强度并详细分析了各参数的取值,以兖矿集团杨村煤矿17煤及其2702工作面突水评价为例,证实了以膨胀界限抗渗强度为基础的底板突水评价模型在突水评价上具有可行性。To solve the difficulties in coal mine floor water inrush evaluation,on the basis of the servo-controlled permeability test of rock in the complete stress-strain process,we proposed the concept of rock expansion boundary anti-permeability strength,and established a theoretical evaluation model of floor water inrush.In the model,several factors,such as the floor aquifuge effective thickness,lithology,rock mass integrity,and expansion boundary anti-permeability strength were considered,and the taking values of all factors were described in detail.Taking the No.17 coal seam and 2702 working face in Yangcun coal mine,Yanzhou mining group as an example,it proves that the evaluation model based on the expansive boundary anti-permeability strength is feasible to evaluate the coal mine floor water inrush.

关 键 词：岩石膨胀界限抗渗强度 底板突水 RQD 全应力应变伺服试验 渗透率 

分 类 号：TD323[矿业工程—矿井建设]