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- As the first successful introduction of natural caving method in domestic nonferrous metal mine,Tongkuangyu Mine increases production capacity and reduces production costs. 铜矿峪矿作为国内第一个成功引进自然崩落法技术的有色金属矿山,提高了矿山生产能力,降低了生产成本。
- The caving difficulty research of the natural caving method has undergone the development process of comprehensive evaluation from single factor to multi-factor and from determinacy to indeterminacy. 自然崩落法可崩性研究经历了从单因素到多因素、确定性向非确定性综合评价的发展过程。
- Application and evaluation of natural caving method in China 国内自然崩落法的应用和评价
- Base Stability of Jingchuan Lean Ore Area Mining by Natural Caving Method 金川贫矿区自然崩落法采场底部结构的稳定性
- Numerical simulation of natural caving method based on particle flow code in two dimensions 自然崩落采矿法的颗粒流数值模拟
- Keywords cataclastic rock mass;artifical caving and undercut;natural caving method; 碎裂岩体;放顶拉底;自然崩落法;
- Keywords natural caving method;subsidiary layer;scraper drift;hopper;chute;undercutting;ventilation; 自然崩落法;副层;电耙道;漏斗;溜井;拉底;通风;
- There is a natural cave in the side of the hill. 山坡上有一个天然的洞穴。
- natural caving method 自然崩落法
- Keywords natural caving method;3 D numerical simulation;bottom cutting;size of caved ore;topolo 自然崩落法;三维数值计算;拉底方案;崩落块度;拓扑学;
- According to the theory and method of particle flow code in two dimensions (PFC2D), the block caving law of natural caving mining method was investigated. 以自然崩落采矿法为研究对象,利用二维颗粒流数值模拟(PFC2D)的原理和方法,研究了自然崩落法矿体崩落规律。
- Feasible drawing interval is the basis to study mining equipment of fully-mechanize coal mining with caving method. 综放开采的合理放煤步距是研制综放工作面成套技术装备的基础,是提高综放工作面采出率与煤质的关键之一。
- Sublevel Mechanized caving method shows the characteristics of high out-put,more dust sources,high dust concentration and difficult to control. 煤矿综采放顶煤工作面开采强度大、产尘尘源多、粉尘浓度高，因而对尘毒的治理难度大。
- Tonkuangyu Copper Mine sets up a set of simple and convenient monitoring system of orebody caving state in the mine stope to use block caving method. 铜矿峪铜矿在自然崩落法采场中，建立了一整套简便易行的矿体崩落状态监测系统。
- There were a few natural caves on the reverse solpe. 背面坡上有几个天然的山洞。
- The paper is of important instructive importance to reduce loss and depletion by sublevel caving method without sill pilla... 并对今后无底柱分段崩落法降低损失贫化具有重要的指导意义。
- There were a few natural caves on the reverse slope. 背面坡上有几个天然的山洞。
- To simulate the problem,a numerical analysis method,FLAC3D is applied to analysis the depressurization range of sublevel caving method. 应用FLAC3D对分段崩落法的卸压范围进行了数值分析,据此确定出适于卸压的采场结构,由此形成了无底柱分段崩落法开采倾斜矿体的卸压开采方案。
- Rock, large and small, scattered in hundreds of natural caves. 岩壁上，散布着大大小小上百个天然洞穴。
- Mithraea were dark and windowless, even if they were not actually in a subterranean space or in a natural cave. 太阳洞穴是黑暗和无窗的，即使它们并不是在真正的地下空地或者自然洞穴里面。
