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- large and high longwall caving face 大采高
- Phenomenon law of underground pressure in mechanized super longwall caving face 超长综放工作面矿压显现规律
- sub-level longwall caving face 综采放顶煤
- fully mechanized sub level caving working face 综放工作面
- Trails of industrial draw body were carried out by installing marking particles in ore mass to study structure parameters of sub level caving of Meishan Iron Mine. 采用在试验矿体中设置标志颗粒,进行工业放出体试验,对梅山铁矿无底柱分段崩落法的采矿结构参数进行研究。
- According to the field investigation at Dayang coal mine, the paper describes behavior of ground pressure of longwall top coal caving face with soft surrounding rock and movement of overlying strata. 本文通过大雁二矿28%23层采面矿山压力的实测分析,论述了软岩矿井大采放比综放开采矿压显现特征和围岩活动规律。
- fully mechanized longwall caving mining face 综放工作面
- Datuanshan XI #2 orebody at shizishan copper mine is a deep large size orebody,mined by the sub level open stoping method. 狮子山铜矿大团山XI%232矿体系深部厚大矿体,采用分段空场法开采。
- Practices have proved that quick advancing techniqe is applicable in isolated unmined area Comprehensive top coal caving face. 实践证明,孤岛综放工作面快速推进技术是可行的。
- A fast-withdraw technology and relative safety processes of fully mechanized caving face in steeply-inclined coal seam are introduced. 介绍了急倾斜特厚煤层综放工作面回撤工艺及相关安全技术措施。
- This technique has been used successfully in the air-return gate oJ" 1310 fully mechanized roof coal caving face in Zhangcun Coal Mine. 该项研究在漳村1310综放面回风巷的工程实践中得到了成功应用和检验。
- fully mechanized longwall caving mining 综放开采
- The II3123 face is a light type caving face of three-soft coal seam.the roof is cracked,sloughing and roof fall often occur. 石台煤矿II3123工作面为"三软"煤层轻放工作面,顶板破碎易掉,片帮、冒顶时常发生。
- The adaptability of equipments,especially powered supports in full-mechanized caving face in Wanbei minefield is analyzed from a typical working face accident. 从皖北矿区一次典型工作面事故出发,分析了皖北矿区综采工作面设备尤其是液压支架适应性存在的问题。
- Keywords sub level caving;thick unconsolidated aquifers;safety pillars under water bodies;engineering geological model; 工程地质模型;放顶煤开采;厚松散含水层;防水煤岩柱;
- The adaptability of equipments, especially powered supports in full-mechanized caving face in Wanbei minefield is analyzed from a typical working face accident. 摘要从皖北矿区一次典型工作面事故出发,分析了皖北矿区综采工作面设备尤其是液压支架适应性存在的问题。
- In early application of fully mechanized top coal mining,Spontaneous fire took place when the backout of fully mechanized top coal caving face was stopped mining. 在应用综放开采的初期,每当综放工作面停采回撤时,就会发生自燃发火。
- Through the transformation of tailings device of the scraper conveyor behind light caving face,this paper studied tailings mining technology,and achieved good results. 通过对轻放工作面后部刮板输送机进行尾煤装置改造,进行尾煤回收工艺研究,取得良好效果。
- Keywords fully mechanized sub level caving;roadway along gob area;simulation calculation;depressurizing roadway;loosening blasting; 综采放顶煤;沿空巷道;模拟计算;卸压巷;松动爆破;
- Kang T H, Jin Z M.Laws of Coal-Rock Movement and the Technical Parameters on the Fully Mechanized Sub-Level Caving Face of the Gently Inclined Seam [J]. the Ming Engineer, 1995. 康天合;宋选民.;煤层条件对顶煤可放性的影响研究[J]