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涨壳式锚杆简单的机械锚杆是楔缝式锚杆,但现在已主要为涨壳式锚杆所取代。涨壳式锚杆的优点是安装、存放和运输比较简便。这种锚杆很适合加固脆性岩石,也可以配用金属网把涨壳锚定在坚硬的上覆岩层内,这是层状矿床开采中所常用的一种方式。强烈的振动可能导致锚杆松动,必须进行高水平的技术检测。这种型式的裸锚杆由于锈蚀不宜作永久加固装置,但是,在锚杆孔内灌注砂浆或树
Rising shell type anchor The simple mechanical anchor is the wedge type anchor, but now has been replaced by the up shell and rock bolt. The advantage of a rising shell anchor is that it is easy to install, store and transport. This type of anchor is well suited for strengthening brittle rocks, and can also be fitted with a metal mesh to anchor the ascending shell within a rigid overburden, a common practice in stratiform deposit mining. Strong vibration may cause the anchor to loosen and a high level of technical testing must be performed. This type of bare anchor due to rust should not be used for permanent reinforcement, but in the anchor hole filling mortar or tree