随着科学技术的进步，生产能力的提高，地下大断面工程越来越常见，尤其是矿山中的大跨度巷道。由于开采深度的加大，对于此类大跨度巷道的支护加固也变得日益重要。近年来，锚索在地下岩土工程中的应用越来越普遍，但有关锚索减跨作用功能的研究，国内外则很少有人专门研究。通过相似材料模拟试验以及 FLAC3D 数值模拟试验，验证深埋、大跨度地下空间，可采用锚索实现其顶板的减跨支护效果。% With the development of science and technology and enhancement of productivity in our country ,more and more large section engineering programs come out ,especially the large span laneways in mines .As the depth of mine is deeper and deeper ,it is more important to support the large span laneways .In recent years ,the use of anchorage cables are more and more popular in underground geotechnical engineering ,however ,there are few people to do the research on reducing span with them .It is being proved that using cables could realize reducing span for roofs in deep and large span underground through similar material simulation test and numerical simulation experiment ,which has great realistic significance .
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