锚网钢支架复合型支护的试验研究

Experiment study of the bolting net steel support

软岩巷道支护始终是矿井建设的难点问题之一。在对软岩的物理力学、性质、膨胀性、崩解性等进行试验研究的基础上提出了软岩锚杆与钢支架耦合设计的方法 ,通过现场工业性试验和施工监测 ,得出了新设计方法和支护方案 ,能有效控制围岩的变形 ,确保巷道的长期稳定 ,并取得了良好的技术经济效益。

The soft_rock tunnel support was one of difficult problems in mine construction Based on the experimental study of soft_rock physical mechanics,property,expansibility,collapsibility est ,the coupling design method of soft_rock tunnel bolting and steel support is put forward Through local industry experiment and construction survey,show that the new method and project may effectively control the wall_rock's deformation as well as assure tunnel's long stabilization Good technical and economic benefit is obtained by the new method