破碎岩体非线性渗流突水机理研究现状及发展趋势

被引：87

作者：

杨天鸿 ^{[1
]}

师文豪 ^{[1
]}

李顺才 ^{[2
]}

杨鑫 ^{[1
]}

杨斌 ^{[1
]}

机构：

[1] 东北大学深部金属矿山安全开采教育部重点实验室

[2] 江苏师范大学机电工程学院

来源：

煤炭学报 | 2016年 / 41卷 / 07期

关键词：

破碎岩体; 突水; 非Darcy渗流试验; Forchheimer方程; 渗流模型;

D O I：

暂无

中图分类号：

TD745 [矿山水灾的预防和处理];

学科分类号：

081903 [安全技术及工程];

摘要：

在收集整理国内外相关资料的基础上,从非线性渗流理论方程、非Darcy渗流试验和非线性渗流数值模型方法等方面总结目前破碎岩体非线性渗流突水研究现状,认为破碎岩体渗流具有突水通道的非Darcy渗流特性、3种流场(Darcy层流、非Darcy高速流及Navier-Stokes紊流)动力学系统的统一性和突水3要素(含水层水源的Darcy流、突水通道的非Darcy流和开采扰动作用)中的应力扰动特性。据此,提出了破碎岩体非线性渗流突水机理研究的发展趋势:从矿山采动岩体渗流突水3要素这一渗流特征出发,通过试验和现场测试研究不同围压、水力梯度和流速条件下破碎岩石渗流规律,建立考虑应力作用的耦合Darcy,Forchheimer和Navier-Stokes方程混合流场的模型,提出有限单元弱形式和有限体积法耦合积分解算混合流场方法,把采动应力作用下含水层、冒落岩体破碎带和巷道整个突水水流路径连接在一起,Forchheimer流域的边界流量压力是动态变化的,可以有效解决破碎岩体非线性渗流模型存在的问题,能比较合理模拟采动应力作用下矿山突水瞬态流动全过程。

引用

页码：1598 / 1609

页数：12

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