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- Strip-partial mining has an abroad application as an important method of coal mining under buildings. 条带开采是作为"三下"采煤的主要技术措施,在我国有很广泛的应用。
- coal mining under buildings 建筑物下采煤
- Investigation on the Optimum Mining Programme under Buildings of Certain Area of Jiaoxi Coal Mine? 焦西矿四一采区建筑物下最优开采方案?
- Discussion on feasibility of coal mining under building structures with like gypsum material back filling 似膏体充填建筑物下采煤可行性探讨
- Ground building is wrecked by ground coal mining under village. 村庄下压煤开采,造成地面房屋破坏。
- Ground building is wrecked by compressed coal mining under village. 村庄下压煤开采,造成地面房屋破坏。
- It is indispensability of overburden failure law for mining under buildings, water bodies and railways, especially mining under water bodies. 覆岩破坏规律探测是“三下”采煤,尤其是水体下采煤不可缺少的部分。
- This is the fundamental source for the supports crushing during coal mining under the unconsolidated confined aquifer in East China. 这是造成华东矿区部分矿井在部近松散承压含水层开采时工作面发生压架事故的根本原因。
- According to the creep mechanics test parameters, we have constructed a nonlinear creep formula, which provides a theory basis for roadway support in coal mining under the sea. 根据含油泥岩蠕变力学参数,推导出横向各向异性非线性蠕变方程,为海下开采条件下的巷道支护提供了理论依据。
- The fact shows that the single leg type shield support and the technology of discharging coal in the side is an efficient method of coal mining under the condition of steep thick coal seam. 通过井下生产实践表明:单腿支撑柔性掩护支架采煤法和侧向放煤技术相结合是开采大倾角厚煤层一个新的、有效的采煤方法。
- Coal mining can result in groundwater seriously seeping and seriously influencing aquatic environment.Coal mining under water-containing condition in the North Shaanxi area is very necessary. 摘要采煤会造成地下水严重渗漏,同时对生态环境影响巨大,保水采煤在陕北地区是非常必要的。
- The fully mechanized caving coal mining under the railway in mine area will result in difficult maintenance of railway because of great deformation and subsidence speed of terrene and railway. 在矿区铁路下进行放顶煤开采所引起的地表及铁路的变形量大,变形速度快,从而导致矿区铁路维护困难。
- In the other hand ,the denseness materials were studied in application utilizing ,the materials were also used into fire extinguishing and preventing in Jining No.2 coal mine under its special style . 其次对粉煤灰稠化剂这一激活产品进行了应用性研究,结合防灭火注粉煤灰浆特定的工艺在济宁二号煤矿井下防灭火实际中得到应用。
- Analysis on the safety technology of strip mining under buildings 建筑物下条带开采的安全技术分析
- coal mining under surface structure 建筑物下采煤
- coal mining under water- containing 保水采煤
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- Study on Ground Movement and Deformation after Strip Mining under Buildings 建筑物下条带开采地表移动与变形研究
- That coal mine is no longer worked. 那个煤矿已经不经营了。
- TEST RESEARCH ON GROUTING MATERIALS FOR TREATING ABANDONED MINE UNDER BUILDINGS 建筑下老采空塌陷区地基注浆充填材料试验研究
