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- water inrush from coal roof 顶板突水
- water inrush from coal seam floor 煤层底板突水
- The Theories and Methods on Water Inrush From Coal Floor 煤层底板突水研究的理论和方法
- 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. 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。
- Water inrush from the bottom coal layer in mining work faced now is rather serious in Northern China coalfield, which constraints seriously the normal economical benefits. 在我国华北煤矿区,回采工作面煤层底板突水问题相当严重,困扰着煤矿经济效益的正常发挥。
- Forecast of water inrush from coal floor based on least square support vector machine 基于最小二乘支持向量机的煤层底板突水量预测
- Study on the Non-linear Forecast Methods for Water Inrush from Coal Floor Based on Wavelet Neural Network 基于小波神经网络的煤层底板突水非线性预测方法研究
- In-situ measurement and physical analogue on water inrush from coal floor induced by progressive intrusion of artesian water into protective aquiclude 承压水沿煤层底板递进导升突水机理的模拟与观测
- A numerical simulation analysis of influence of karstic collapse columns on rock mass yield and water inrush from coal floor 陷落柱影响采场围岩破坏和底板突水的数值模拟分析
- water inrush from coal floor 底板突水
- The article takes water resisting floor as brittle rock mass,and thinks that water inrush from floor is caused by rock mass sliding along a fracture plane. 把隔水底板作为脆性岩体,认为底板突水是由于岩体沿断裂面发生滑动造成的。
- Taking Qidong Mine as a example,based on the data about the water inrush from the fourth aquifer, the parameters are revised, which are calculated by pumping test. 分析了“底含”发育的主要影响因素,并以祁东煤矿为例,利用地下水动力学方法重新计算了“底含”的有关参数,对以往抽水试验参数进行修正,并成功地运用到邻近矿井。
- The water inrush from conglomerate in the coal mine relatives to the water rich property of conglomerate and the pressure bump. 该矿的砾岩出水除与砾岩的富水性有关外,还与矿井的冲击地压有密切关系。
- A Case Study of Rock Failure and Water Inrush from the Coal Seam Roof 煤层顶板破坏与突水实例研究
- Coal is always a main energy sources in our country,and exploitation of coal was threatened by many mine geological disasters,in which the water inrush from mine is the most primary problem. 煤炭一直是我国的主要能源,煤炭开采受到多种矿井地质灾害的威胁,其中最大安全问题是矿井突水事故。
- Influence of fault activation on water inrush from roof Coal Bed 3 in Dongtan Mine 东滩矿断层活化对3煤顶板突水的影响
- This paper gives a description of the grouting technology for controlling water inrush from fault, the selection of grouting materials, the rational arrangement of grouting holes and grouting method. 介绍了断层突水治理的注浆工艺,并对注浆材料的选择,注浆钻孔的合理布置,合理的注浆方法作了祥细的介绍。
- Base on the back ground of Dafosi Mine project,the key strata theory and cusp catastrophe theory was applied to analyze the mine water inrush mechanism from roof. 以大佛寺煤矿工程为背景,运用关键层理论与尖点突变理论分析了采场顶板透水的发生机理,认为基岩关键层突发性破断失稳是顶板突水的诱因。
- Conversion of your heating system from coal to gas will be costly. 你把暖气系统由烧煤改造成烧瓦斯会花好多钱。
- Nylon is made from coal,water and air. 尼龙是用煤、水和空气制成的。