东曲矿大断面巷道支护问题分析及改进建议

Analysis on the Support of Large Section Roadway in Dongqu Coal Mine and Suggestions for Improvement

东曲矿八采区28806皮带巷现有支护存在着巷道变形严重、巷道两帮收缩严重和大面积底鼓现象等问题。通过对八采区28806皮带巷设计支护方案进行改进,经过现场应用证明巷道支护的强度增强,节约了大量后期巷道维护的费用成本,而且还避免了巷道两帮和底板的鼓出。

In 28806 belt road of mining area 8 of Dongqu Coal Mining there exist such problems as serious deformation of the roadway serious shrinkage of both side the roadway and a large area of foor heave etc. To solve them, this paper analyzes the existing problems in supporting materials and supporting parameters, and improves the design support scheme of 28806 belt lane in 8th mining areas.After feld application,it is proved that the strength of roadway support is enhanced,which not only saves a lot of cost of road maintenance in the latter part of the roadway, but also avoids the bulging of the roadway and the foor.