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锚索桁架支护技术在支护原理方面提出了重要的创新,能同时在巷道顶板内部施加铅锤和水平方向的支护力。在锚索桁架推广使用的过程中,先后出现了多种支护形式。简述了单式锚索桁架、反对称布置控制技术、内嵌组合布置控制技术和复合锚索桁架的主动控制技术原理,分析并得出各种技术的特点和对不同跨度巷道的适应性。
Anchorage cable truss support technology presents important innovations in support principles that apply both plumb bob and horizontal support forces in the roof of the roadway at the same time. In the process of promoting the use of cable trusses, a variety of support forms have emerged. The principle of active control of single-type anchor truss, anti-symmetrical arrangement control technology, in-line combined arrangement control technology and composite anchor truss is briefly introduced. The characteristics of various technologies and the adaptability to different span roadway are analyzed.