您要查找的是不是:
- Buried Ordovician limestone fractured and karstic aquifer in Hongshan and Zhaili coalmines had seriously polluted. 淄博市洪山、寨里煤矿区隐伏的奥陶系灰岩裂隙岩溶水污染严重。
- A study of Shijiazhuang depression revealed a low uplift, which is favorable for geothermal prospecting in Cambrian and Ordovician limestone. 工作结果在石家庄凹陷内发现槐底低凸起存在,是寻找寒武系、奥陶系灰岩类型的地热远景有利地区;
- The assessment and division of ground water environment quality of Ordovician limestone in Lishi-Liulin mining areas are made in this paper. 本文对离柳矿区奥陶系灰岩岩溶地下水的环境质量进行了评价和分区,结合地质条件简述了各区的特点;
- The coefficient of water-invasion is usually used as judgment criterion when the coal seam suffered from Ordovician limestone water invasion. 开采受奥灰水威胁的煤层时,通常都把突水系数作为安全评价的依据,此方法存在一定局限性。
- Shimen Hunan realgar deposit controlled by both dolomite of lower Cambrian Luoshanguao Group, lower Ordovician limestone and fault. 湖南石门雄黄矿床受寒武系下统娄山关群白云岩和下奥陶统灰岩以及断裂构造的双重控制。
- Results indicated that this method is of feasibility for evaluating dangerousness of Ordovician limestone water invasion. 结果表明,该方法评价奥灰突水危险性直观、清晰、简洁,值得推广。
- It was taken the example for the Danhou Mine in this article,and the safety control and utilization of Ordovician Limestone Water in mine was discussed. 本文以单侯矿井为例,论述矿井奥灰水的安全防治与利用。
- Because of the influence of mining, the permeability of footwall strata varies obviously.Confined water from Ordovician limestone might inrush into gob region. 由于受采动的影响,煤层岩层的渗透能力会发生明显的变化,有时会导致承压水突入采空区。
- Since hydrology-geological conditions are quite complex in the Danhou Mine,and Ordovician Limestone Water poses the serious threat to the mine safety in production process. 单侯矿井水文地质条件比较复杂,奥灰水对矿井安全生产构成严重威胁。
- This paper introduces both methods of seismic attribute and pattern recognition and their application to predict Ordovician limestone karst fractured zones in Xuchang Coal Mine. 简单介绍了地震属性技术和模式识别方法及其在许厂煤矿奥陶系灰岩裂隙发育带预测中的具体应用。
- In Feicheng Mi ni ng Area,there are very complex hydrogeological conditions,and high water level and large quantity of water,of Karst water of Ordovician limestone. 肥城矿区水文地质条件极其复杂,奥灰水水位高,水量大,严重制约着煤矿开采的正常进行。
- Based on the lithology, thickness of aquifuge and changes of the rock between Ordovician limestone aquiferous to lower-group coal seam, the watertightness of aquifuge are evaluated. 对矿区内奥灰含水层与下组煤之间隔水层的岩性、厚度及变化进行了分析,并对隔水层的隔水性能做出了综合评价;
- Ordovician limestone karstic water 奥灰岩溶水
- Ordovician limestone water invasion 奥灰突水
- the water in Ordovician limestone 奥灰水
- boreholes in aquifer of Ordovician limestone 奥陶系石灰岩含水层钻孔
- confined area with Ordovician Limestone 奥灰承压区
- Precaution method of Ordovician limestone groundwater in bottom layer 底板奥灰水的防治方法
- Keywords grouting technology:un derground hole;aquifer of Ordovician limestone; 注浆技术;井下钻孔;奥灰含水层;
- First, ore is mixed with coke and limestone. 先把铁矿石和焦碳、石灰石混合在一起。