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一、长锚索支护技术的发展历史及现状锚索技术在世界上有40余年历史.最早使用锚索技术的国家是阿尔及利亚,1933～1935年该国用来加固舍尔法大坝,一举获得成功.其后二十余年中并无多大进展,直到六十年代以来由于高效率钻机和压力注浆机械的改进以及锚头和预应力技术的发展,锚索技术才在英、美、法、苏、日、意、芬兰、印度、加拿大、澳大利亚等国家再度得到应用与发展.六十年代后期,澳大利亚用15～18米的长锚索加固采场顶柱、上盘以及分层充填法采场顶板;美国用钢丝绳锚索取代木支护控制采场上盘;加拿大用应力长锚索加固地下矿采场顶板、解决了围岩的大量冒
First, the history and status quo of the development of long cable support technology Anchorage cable technology in the world for more than 40 years of history. The earliest use of cable technology in the country is Algeria, the country from 1933 to 1935 to strengthen Scherfa dam in one fell swoop Was not much progress in the following twenty years until the anchor cable technology was developed in the United Kingdom, the United States, the United States and the United States until the 1960s due to the improvement of high efficiency drilling rigs and pressure grouting machines and the development of anchor heads and prestressing technologies. France, the Soviet Union, Japan, Italy, Finland, India, Canada, Australia and other countries have been re-applied and development of the late sixties, Australia with a long anchor 15 to 18 meters to stabilize the stope roof, the upper plate and stratified filling France lawn stope roof; the United States replace the wood support with wire rope anchor to control the stope on the plate; Canada with long stress reinforcement of underground mining stope roof, to solve the large number of rock around the rock