02-09-2015 дата публикации
Номер: CN104879150A
Принадлежит:
The invention relates to an anchor cable support method for a deep soft rock roadway without stable rock stratum. The method comprises the following steps: (1), shotcrete-bolt support is performed on the surface layer of the rock stratum, rheology of surrounding rock is controlled, and anchor cable support is adopted on the basis; (2), anchor cables go deep in the rock stratum more than 4 m for anchoring; (3), enlarged bolt plates are adopted, long anchor bolts are adopted to reinforce weak parts after shotcrete-bolt, and damaged parts are reinforced with knocking and shot blasting measures. The anchor cable support method for the deep soft rock roadway without the stable rock stratum has the advantages as follows: through joint application of reinforcement support by the anchor cables, shotcrete-bolt anchor beams and the anchor bolts, problems in a support process are solved, anchor cable support of the deep soft rock roadway without the stable rock stratum is realized, U-shaped steel ...
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