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倾斜锚杆支护与一般锚杆支护的不同之处在于它不垂直于支护顶板面。从受力情况分析,它比垂直锚杆受力合理,支护效果要好。就结构型式而论,倾斜锚杆支护,分组合式和单体式两种。前者又称为桁架式整体结构锚杆支护,在国外地下矿山已经得到应用。本文仅就单体式倾斜锚杆支护作用原理谈谈自己的认识,以便抛砖引玉。(一)问题的提出众所周知,在原岩中开凿巷道时,由于巷道围岩由三向压缩状态转为双向压缩状态,巷道周围的原始应力
Tilting anchor support is different from normal anchor support in that it is not perpendicular to the support ceiling surface. From the analysis of the force situation, it is more reasonable than the vertical anchor, support effect is better. In terms of the structure type, inclined bolt support, sub-combined and single two. The former is also known as truss-type integral structure bolt support, which has been applied in foreign underground mines. This article only on the principle of monolithic inclined bolt support to talk about their own understanding, in order to initiate. (A) the question raised As we all know, in the original rock excavation roadway, due to roadway rock from the three-dimensional compression state into two-way compression state, the original stress around the roadway