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- The shrink quantity,theory value and test result of retaining roadways along goaf are the same,this shows the exantness of the mechanics model. 可缩量、理论值与现场沿空留巷试验测结果相同,说明了这种力学模型的正确性。
- retaining roadway along goaf 沿空留巷
- Practical Benefit of Retaining Roadways Along Goaf at Coal Face 采煤工作面沿空留巷的实用效益
- retaining roadways along goaf 沿空留巷
- retain roadways along goaf 沿空留巷
- This paper introduces the application of bolting with wire mesh in roadway along goaf in Qitaihe Cleaned-Cleaned Company. The better supporting result has made. 七台河精煤集团公司在沿空留巷时使用锚索锚杆支护巷道,经过实践取得了良好的支护效果。
- Supporting technology of roadway along goaf with high strength bolt 高强度锚杆支护巷道沿空留巷支护技术
- Keywords replacement face;old goaf partial ponding;sending roadway along goaf; 接替面;老空区局部积水;沿空送巷;
- retaining roadway along roaf 沿空留巷
- Study of strata behavior of Driving the Roadway along Goaf in longwall with top-caving mining face of coal seams with extra-thickness and softness 特厚软煤层综放工作面沿空送巷矿压显现规律研究
- Test and Study of Pressure-relief Supporting Technology for Surrounding Rock Wriggoling in Driving the Roadway along Goaf 沿空送巷围岩蠕进卸压支护的试验研究
- driving roadway along goaf 沿空掘巷
- Experimental Study on the Support of Retained Roadway along NextGoaf Reinforced by Cable Anchor in Fully Mechanized Mining 综采沿空留巷锚索加强支护试验研究
- retaining roadways along goal 沿空留巷
- Study on retaining roadway on original site in goaf after coal mining face crossing rise 综采工作面过上山原位留巷技术研究
- roadway rock of driving along goaf 沿空掘巷围岩
- retain roadways along goat' 沿空留巷
- driving roadways along goaf 沿空掘巷
- escorting roadways along goaf 沿空送巷
- remain roadways along goaf 沿空留巷
