The utility model relates to the technical field of roadway support, in particular to a roadway support structure, which includes a support component and an inflation component, the support component is arranged along the surrounding rock surface of the roadway, and there is a gap between the support component and the surrounding rock surface of the roadway, the inflation component includes an air bag, the air bag is arranged in the gap, and the air bag can inflate and expand to fill the gap. The utility model sets up the support components in the roadway, matches the shape of the surrounding rock in the roadway, lays the air bag of the inflatable components between the roof and the rock walls of the two sides and the support components, inflates the air bag under the space limit formed by the support components and the surrounding rock, fills the gap between the support components and the surrounding rock after the expansion of the air bag, can exert the active force on the surrounding rock, and effectively improves the Lane speed to avoid mining connection maladjustment. When the surrounding rock pressure of the roadway is large, the air bag can be compressed to make the pressure flexible, and the supporting effect is good; the air bag and supporting parts can be recycled and reused, and the supporting cost is low.
【技术实现步骤摘要】
一种巷道支护结构
本技术涉及巷道支护
,尤其涉及一种巷道支护结构。
技术介绍
随着煤矿开采深度和强度的不断增加,巷道压力不断加大,巷道变形难以控制,巷道支护难度不断增加,且要求巷道支护速度不断提高。目前煤矿巷道主要采用两种支护方式:一是预应力锚杆索主动支护;二是架钢棚被动支护。预应力锚杆索支护为一种主动支护方式,可有效对围岩施加预应力,抑制围岩原生裂隙的张开,维护围岩自身结构的完整,保持围岩的自承能力,在复杂困难巷道条件下取得良好的应用效果。但是锚杆索支护施工过程包括打孔,输送、搅拌锚固剂,安装预紧锚杆索等环节,施工过程较为繁琐,用时长,成巷速度远远低于工作面回采速度,导致采掘接续紧张,不能满足煤矿高产高效的要求。架钢棚被动支护施工较为简便,成巷速度快。架钢棚为被动支护,钢棚与岩壁不能贴合,中间有空隙。待围岩发生变形,顶板下沉,两帮移近,岩壁与钢棚接触后,钢棚才能提供变形抗力,发挥支护作用。但围岩裂隙已经张开,完整性下降,自承能力丧失,其后期变形难以有效控制。支护效果较差限制架钢棚被动支护只能在地质条件简单,围岩压力较
【技术保护点】
1.一种巷道支护结构,其特征在于:包括支撑部件和充气部件,所述支撑部件沿巷道的围岩表面设置,且所述支撑部件与所述巷道的围岩表面之间具有间隙,所述充气部件包括气囊,所述气囊设置于所述间隙中,所述气囊可充气膨胀充填所述间隙。/n
【技术特征摘要】
1.一种巷道支护结构,其特征在于:包括支撑部件和充气部件,所述支撑部件沿巷道的围岩表面设置,且所述支撑部件与所述巷道的围岩表面之间具有间隙,所述充气部件包括气囊,所述气囊设置于所述间隙中,所述气囊可充气膨胀充填所述间隙。
2.根据权利要求1所述的巷道支护结构,其特征在于:所述支撑部件包括钢拱架,所述钢拱架的形状与所述巷道的围岩表面相配合。
3.根据权利要求2所述的巷道支护结构,其特征在于:所述支撑部件还包括钢筋网,所述钢筋网铺设于所述钢拱架与所述气囊之间。
4.根据权利要求1所述的巷道支护结构,其特征在于:还包括压力检测部件,所述压力检测部件设置于所述气囊与所述巷道的围...
【专利技术属性】
技术研发人员:王子越,姜鹏飞,杨建威,刘畅,郑仰发,
申请(专利权)人:天地科技股份有限公司,
类型:新型
国别省市:北京;11
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。