摘要
既要防治煤矿突水灾害又要保护矿区水资源,实现保水采煤是绿色开采技术的核心内容之一.通过研究建立了保水采煤的隔水关键层矿压模型,同时提出了可用于指导开发保水采煤技术的隔水关键层原理.隔水关键层模型有3层含意,即软弱层岩性隔水、坚硬层结构隔水和裂隙通道弥合隔水.保水采煤原理可分解为4个步骤,即隔水关键层位置判别、结构稳定性判别与控制、渗流稳定性判别与控制以及渗流突变通道控制.保水采煤的隔水关键层原理在采场顶底板突水灾害防治中得到了成功应用.
It is important to prevent the water inrush as well as to protect the water resource in coal mining. Water-preserved mining is one of the important contents in the green mining technological system. In this paper, a rock pressure model of water-resisting key strata （WKS） in water-preserved mining is proposed, and a principle of WKS is presented for instructing and developing the water-preserved mining technology. The model of WKS has following three meaning： lithologic water-resisting with weak rock layer, structure water-resisting with hard rock layer and water-resisting with the fracture passage closing. The principle of WKS is consist of four steps, including the position determination of WKS, structure stability determination and controlling, seepage stability determination and controlling, and the seepage mutation passage controlling. The principle of WKS in water-preserved mining has been successfully applied to the disaster prevention of water inrush from roof and floor in working face.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2008年第1期1-4,共4页
Journal of China University of Mining & Technology
基金
国家重点基础研究发展计划(973)项目(2007CB209400)
国家自然科学基金项目(50574090)
国家自然科学基金重点项目(50634050)
关键词
绿色开采
保水采煤
隔水关键层
矿压模型
突水灾害防治
green mining
water-preserved mining
water-resisting key strata
rock pressure model
disaster prevention of water inrush
