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介绍了“三软”煤层孤岛沿空煤巷锚杆支护的矿压观测方法、手段及取得的主要结论,探讨了该条件下的锚杆支护机理。沿空掘巷采用锚网支护,要求不仅要保证巷道围岩的稳定性,而且应控制围岩的变形量,使变形后的巷道尚能满足生产过程中对断面的要求。
This paper introduced the rock pressure observation methods and measures and the main conclusions obtained in the “three soft” seam gob-side entry coal roadway bolting support. The bolt supporting mechanism under the condition was discussed. Roadway driving along with bolting support requires not only to ensure the stability of roadway surrounding rock, but also to control the deformation of surrounding rock so that the deformation of the roadway is still able to meet the production requirements of the section.