The ore and surrounding rock in Luoyang mining area of Panluo Iron Mine are of stable type, where open stoping method is adopted.
潘洛铁矿洛阳采区矿石及围岩均属稳固类型，开采方法采用空场法。
Medium and deep hole casting blast sublevel open stoping method is suggested and its suitability to the stope ground pressure is expounded.
提出了中深孔抛掷爆破分段空场法，并阐明其对采场地压的适应性。
To fully exploit the resources, Qingtonggou Mercury-antimony Mine adopts the sublevel open stoping with delayed filling to recover the remanent ore-body at the medium stage of 550~600 m.
青铜沟汞锑矿为充分开采井下资源，选择采用分段空场嗣后充填采矿法回采550~600m中段的部分残矿体。
This paper introduces the results of sublevel open-stoping method and improving measures in Piaotang Tungsten Mine and makes a discussion about the mining method to the string thick-bedded ore body.
介绍了分段空场采矿法在漂塘钨矿的应用效果与改进措施，并对细脉带厚矿体采矿方法作了探讨。
This paper introduces the results of sublevel open-stoping method and improving measures in Piaotang Tungsten Mine and makes a discussion about the mining method to the string thick-bedded ore body.
介绍了分段空场采矿法在漂塘钨矿的应用效果与改进措施，并对细脉带厚矿体采矿方法作了探讨。
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