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在松软岩层中尚未解决的安全、经济的顶板支护问题之一是把锚固装置固定在较松软岩层内。本文介绍一种低费用 ,可缩性支护机构 ,它是解决动态支护的有效方法。可缩性支护具有很多优点 :设计和安装简易 ,可重复性和价格低廉。同时 ,操作人员可以通过对弯曲盘形状变化的直接观察评估支柱的状态和岩层的性能。因此 ,该支护系统可以用作岩层应力和支护荷载状况的预警。
One of the unsolved unsafe, unsafe roof support problems in soft rock formations is anchoring the anchoring device in the softer rock formation. This article describes a low cost, retractable support mechanism, which is an effective way to solve the dynamic support. Retractable support has many advantages: design and ease of installation, repeatability and low cost. At the same time, the operator can evaluate the status of the stanchion and the performance of the stratum by direct observation of the shape of the flexural disc. Therefore, the support system can be used as an early warning of rock stress and supporting load conditions.