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- Technology for sublevel caving working face with light weight hydraulic powered supports passed through mine used roadway 轻型支架放顶煤工作面过老巷技术
- Technology of high efficient mining for fully mechanized sublevel caving working face to sideway pass through sunk column 综放工作面遇陷落柱高效开采技术
- Through the research of high gas and multi-water-bursting hazards prevention techniques in Jiaozuo coal mine regions, the mining coal method of caving working face is found. 通过对焦作矿区高瓦斯多水害防治技术研究，找出适合该条件下的炮采放顶煤模式的采煤方法。
- Through the research of high gas and multi-water-bursting hazards prevention techniques in Jiaozuo coal mine regions,the mining coal method of caving working face is found. 通过对焦作矿区高瓦斯多水害防治技术研究,找出适合该条件下的炮采放顶煤模式的采煤方法。
- The ground pressure behavior anomaly in fully-mechanized top-coal caving working face is a trans-normally and detrimentally dynamic pressure phenomenon. 综放采场矿压显现异常是发生在综放采场的超出常规预计、对安全生产造成较大危害的动压现象。
- Drawing test in fully mechanized working face with sublevel caving after mining the up-seam of contiguous seams 近距离煤层顶层预采综采放顶煤试验
- combined mining caving working face 综放
- fully mechanized sub level caving working face 综放工作面
- Technical Discuss of Light Caving Working Face through the Upper Vacant Roadway 轻放工作面通过上层空巷的工艺探讨
- Sublevel caving without sill pillar is used in Xishimen Iron Mine. 西石门铁矿采用无底柱分段崩落采矿法开采。
- Feeblezation technique with preliminary demolition in top coal caving work face 放顶煤工作面顶煤预爆破弱化技术
- Using hydraulic supports in heavy grade longwall face with sublevel caving,anti-topple and antiskid are the key factors. 在大倾角倾斜煤层进行综放开采,支架的防倒、防滑成为决定放顶煤开采成功与否的关键。
- As a result,the new scheme of sublevel caving with footwall drifts,is raised. 为此，提出自放顶、设回收进路的无底柱分段崩落法新方案，实施后成效显著。
- Application of Deep Hole High-pressure Water Infusion in Dustproof of Blasting with Caving Working Face 深孔高压注水在炮放工作面防尘中的应用
- The pre - support technology and its practice along goof roadway in comprehensie caving working face 综放工作面沿空巷道超前支护技术与实践
- Study and application of technology of preventing coal self-ignition in caving working face of coal mine 放顶煤工作面综合防灭火技术研究与应用
- It is key problem to raise the top coal recovery rate of the fully mechanized sublevel caving mining. 提高顶煤放出率是综放开采的一个重大课题,预注水弱化顶煤是解决这一问题的有效方法之一。
- The top coal's recovery ratio in fully-mechanized sublevel caving face controls the stowing degree of the goaf, thereby influences the stability of hard and massive overlying roof. 摘要综放采场顶煤放出率控制着采空区的充填状况，从而影响着大厚度坚硬顶板的稳定性。
- Characteristics of Coal Spontaneous Combustion and Its Control in Gob Area of Fully Mechanized Caving Working Face 综放开采采空区煤炭自燃特征及其控制研究
- Non-pillar sublevel caving may be used in the mining of gently inclined medium thick orebody when footwall cutting technology is adopted. 在采用下盘切岩工艺后,无底柱分段崩落法可以在缓倾斜中厚矿体中应用。
