无底柱浅孔留矿采矿法60%。
Short-hole shrinkage method without sill pillar occupies 60%.
依据浅埋煤层矿压显现特征,给出浅埋煤层长壁开采工作面支架合理工作阻力及安全界限的确定方法。
Base on the weighing feature of the shallow coal bed, the specifying method of the support working resistance and safety margin is presented in the shallow coal bed.
大采高液压支架是针对上湾矿煤层浅埋深、薄基岩、厚风积沙等特定地质条件而研制的一种高性能综采液压支架。
The high mining height hydraulic support is designed for the special geologic condition of Shangwan Coal Mine, such as shallow buried depth, thin bed rock and thick aeolian sand.
叙述了堡子湾金矿多年来应用浅孔留矿采矿法的生产实践以及对采切工程的改进。
The paper introduced shallow hole shrinkage stoping method that has been used in Baoziwan Gold Mine for many years.
通过对北票矿区浅源地震的分析,认为现今构造应力场和断裂对矿震等地质动力灾害的发生起控制作用。
According to the analysis of shallow earthquake in Beipiao mining area, the author conclude that modern tectonic stress field plays dominant role in occurrence of geo-dynamic disaster.
眉山市芒硝矿以含钙量高、 矿物晶体较大、埋藏浅、规模大为特点,目前采用洞室水溶法开采。
The Meishan mirabilite ores are characterized by high Ca content, large mirabilite crystalline, shallow occurrence depth and giant reserves.
根据铧厂沟金矿矿体的开采技术条件,选用了浅孔留矿采矿法回采。
According to the technical mining condition in Hua Changgou Gold Mine, the short hole shrinkage mining was chosen.
本文探讨了浅孔留矿祛新型变形方案:留矿全面法、静态留矿法、削壁留矿法,以及这些方法的矿岩开采条件,采场主动支护,矿柱回收等。
The paper discusses the new options of short-hole shrinkage: all-over mining, static shrinkage, precipice shrinkage, rock mining conditions, active supporting and ore pillar recovery.
详述了宝丰山铅锌矿的矿床开采技术条件,介绍了浅孔留矿法在应用中存在的问题。
The technical mining conditions of mineral deposit of Baofengshan Lead-Zinc Mine are stated in detail, some problems in application of shorthole shrinkage stoping introduced.
主要容矿岩石为浅变质细碎屑岩,钠长碳酸盐角砾岩及碳硅泥质岩;
The ore-bearing rock are mainly fine elastic rocks, breccia of albite-carbonate and carbonaceous- siliceous argillaceous rock.
平度市金矿利用现有的条件,因地制宜采用“三无”即无底、间、顶矿柱浅扎留矿法,收到了好效果。
Based on the existing conditions, Pindu Municipal Gold Mine preferred short-hole shrinkage stoping without sill, intermediate and crown pillar to other mining methods and obtained excellent result.
浅部石英斑岩为含矿岩体,深部花岗斑岩为矿源岩体。
The shallow quartz porphyry is ore-bearing massif and the deep granite porphyry is ore-origimating one.
我国黄金矿床类理多,但缺少世界级大型矿,且普遍存在探矿深度浅、勘查滞后、储量可靠程度差等问题。
China is rich in types of gold deposit, but is short of world-class large size mine, and is faced with problems such as small prospection depth, lagged surveying and uncertainty of reserves.
通过现场实测,得出了对浅埋煤层高产高效工作面顶板来压特征和不同推进速度的矿压显现规律。
The field investigations show that ground pressure of coal face with high productivity depends on face advance rate.
具有矿体多、矿化均匀、厚度较稳定和埋藏浅等特点。
The deposit shows such characteristics as rich orebody, uniform mineralization, less variable thickness and low embedded depth, etc.
浅孔留矿法对急倾斜薄矿脉的矿体开采是一种有效的采矿方法,具有高效低耗与工艺简单等优点。
Short-hole shrinkage mining is an effective method for mining steep-thin veins, and it has advantages of high-efficiency and low-waste and simple technology.
通过焦家深部金矿床和浅部金矿床对比研究,揭示了新的金矿成矿规律:浅部金矿床和深部金矿床之间为无矿间隔或弱矿化带;
Some new gold metallogenic law be revealed by comparative study for shallow and deep gold deposits. There is ore-free interval or weak mineralized zone between shallow and deep gold deposit.
对于急倾斜极薄矿脉的开采国内外最常用的采矿方法是浅孔留矿法,实践表明,该法存在人工劳动强度大、矿石贫化率高等缺点。
Through an exploratory survey of residual deposit in the sourthern zone of a copper ore mine, inclined thin veins with difficult occurrence and complicated mining conditions were discovered.
随着地表露头矿、浅部矿的减少,地质勘查的任务将更多地是寻找隐伏矿、深部矿及边远地区的矿产。
Concealed ores, deep buried ores and the resources of the border area will be searched more than ever before with the decrease of outcrop ores and shallow ores,.
大冶铁矿露天采场挂帮矿是该矿山露天转地下项目的重要工程,采用浅孔留矿法进行开采。
The hanging wall ore of the open-pit is one of important projects in transition from open pit to underground in Daye iron mine, and the shallow hole shrinkage mining method is adopted in the project.
大冶铁矿露天采场挂帮矿是该矿山露天转地下项目的重要工程,采用浅孔留矿法进行开采。
The hanging wall ore of the open-pit is one of important projects in transition from open pit to underground in Daye iron mine, and the shallow hole shrinkage mining method is adopted in the project.
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