This paper theoretically analyzes the mechanism of truss bolt system, and gives the design of coal roadway support according to the characteristics of the "Three-soft" coal roadway.
从理论上分析了桁架锚杆系统的作用机理，并针对“三软”全煤巷道的特点，制定了全煤顺槽桁架支护方案。
To analyze the deformation characters of soft rock roadway in Fengshuigou Coal Mine, provide corresponding preventive measures and have made good technology economic results.
分析了风水沟煤矿软岩巷道变形的特点，提出了相应的防治措施，在软岩支护方面取得了较好的支护效果和经济效益。
Liangjia Coal Mine in Longkou mining area is a typical "three-soft" mining area, meeting many difficulties in roadway support.
龙口矿区梁家煤矿是典型的“三软”矿区，在巷道支护上遇到了非常大的困难。
This paper puts forward support plan through analyzing strata behavior regularity of coal roadway in seam with soft roof, soft coal and soft floor.
文章通过对永华煤矿“三软煤层”煤巷矿压规律进行分析，提出了支护方案。
According to repairing supporting engineering of 1070 roadway in Wei Jia-di Coal Mine, stability failure mechanism of soft rock roadway engineering under complex stress conditions is analyzed.
针对魏家地煤矿1070巷道返修工程，分析了复杂应力条件下软岩巷道破坏机理。
It was succeeded in practical application. It is an useful exploration for the roadway stability control of fully-mechanized top-coal caving long-wall face in soft and thick coal seam.
并成功进行了实践应用，为进一步完善松软厚煤层长壁综放工作面顺槽稳定性控制理论技术体系进行了有益探索。
It was succeeded in practical application. It is an useful exploration for the roadway stability control of fully-mechanized top-coal caving long-wall face in soft and thick coal seam.
并成功进行了实践应用，为进一步完善松软厚煤层长壁综放工作面顺槽稳定性控制理论技术体系进行了有益探索。
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