摘要
分析几种常见锚杆支护形式 ,提出煤巷预拉力支护体系 ,即高性能预拉力锚杆支护、小孔径预拉力锚索支护、钢绞线预拉力桁架支护及其组合方式 ,进而指出煤巷稳定的关键是顶板形成预应力结构 (梁 ) ,并通过几个典型的工程示例反映该技术的应用水平。
A new supporting system characterized by pretension function is utilized based on the analysis and comparison of commonly used bolting supporting styles. It includes high quality prestressed bolting support, small hole prestressed steel strand cable support, prestressed steel strand truss system, and their combined patterns. Engineering applications show that the formation of the so called 'beam'- a prestressed structure of roof is the key factor influencing the stability of surrounding rock.
出处
《矿山压力与顶板管理》
北大核心
2002年第4期1-4,7,共5页
Ground Pressure and Strata Control
