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- driving roadway along goaf 沿空掘巷
- driving roadways along goaf 沿空掘巷
- 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。
- 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
- 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
- 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。
- 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;
- driving roadway along gob 沿空掘进
- 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 roadway along goaf 沿空留巷
- roadway rock of driving along goaf 沿空掘巷围岩
- retaining roadways along goaf 沿空留巷
- escorting roadways along goaf 沿空送巷
- Water inrush in working face and support failure of the driven roadway caused by underground seepage occur from time to time. 摘要地下水渗流导致巷道掘进工作面突水或成巷段支护失效的灾害在煤矿时有发生。
- remain roadways along goaf 沿空留巷
- driving roadways along goal 沿空掘巷
- retain roadways along goaf 沿空留巷
- retainging roadways along goaf 沿空留巷
- It is a waste to the coal resources,Tunnelling along goaf is an effective measure of safe construction and reducing lose. 采取完全沿空掘巷方法,则是一种安全施工减少资源流失的有效措施。
