Abstract：On the analysis of anchoring mechanism for compression dispersion-type anchor cable，three problems that should be considered in the anchor cable design have been put forward，namely the calculation of unit anchor length，the deformation of grouting body near pressure plate and the nonuniform loads of steel strand wires caused by the rock mass deformation after slope completed. The anchorage force has been improved to compare with tension type anchor cable，because the radial expansion deformation of grouting body is restrained by the rock mass. The hard the rock mass is，the stronger the restriction is；and the more the improved anchorage force，otherwise，the smaller. A formula for calculating anchoring length，of which the physical concept is clear and calculation simple，is presented，together with the formula to determine the deformation of the grouting body near pressure plate. In order to eliminate the nonuniform loads，the anchor cable tension method is recommended，in which rock mass permitted displacement after slope completed is considered；and the detailed tension order and the calculation formulas are also given.
周德培1，刘世雄2，刘 鸿1. 压力分散型锚索设计中应考虑的几个问题[J]. 岩石力学与工程学报, 2013, 32(8): 1513-1519.
ZHOU Depei1，LIU Shixiong2，LIU Hong1. SOME PROBLEMS TO BE CONSIDERED IN DESIGN FOR COMPRESSION DISPERSION-TYPE ANCHOR CABLES. , 2013, 32(8): 1513-1519.
程良奎，李象范. 岩土锚固•土钉•喷射混凝土——原理、设计与应用[M]. 北京：中国建筑工业出版社，2008：35-42.(CHENG Liangkui，LI Xiangfan. Geotechnical anchorage•soil nail•sprayed concrete—principle，design and application[M]. Beijing：China Architecture and Building Press，2008：35-42.(in Chinese))
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2013, Vol. 32 
