深部软岩井筒马头门破坏修复治理技术研究

Study on Repair and control technology for failed ingate in deep soft rock of mine shaft

曲江矿井筒马头门破坏段埋深大,岩性软弱,为了对其进行修复治理,在综合现有修复治理方法的基础上,根据其地质条件和破坏情况,分析了变形破坏机理,制定了修复治理方案,采用深孔注浆、预应力锚索、锚注、槽钢井圈和混凝土反拱等技术,成功地对破坏段进行了修复治理。

The failed section of the ingate in the mine shaft of Qujiang Mine was very deep. The rocks were soft and weak. In order to repair the failed ingate, base on the available repair and control methods, according to the geological conditions and failed conditions, the paper analyzed the deformation failure mechanism and set up the repair and control plan. With the applieation of the deep hole grouting, pre - stressed anchor, bolt and grouting, H steel ring and eonerete reversed arch and other technology, the failed seetion of the ingate was successfully repaired and controlled.