Special slurry improve mechanical properties and control techniques for fractured rock mass in slopes
In order to study the sliding characteristics and control methods of rock slope with cracks,the rock slope with cracks as the research object,the slope sliding characteristics were simulated by FLAC3D software;the influence of different temperatures on the strength of rock masses and the special slurry improve of rock mechanics characteristics were studied by rock mechanics tests and propose a joint reinforcement control technology of"anchor rod+anchor cable+anchor spray+grouting",the joint reinforcement control technology was verified by experiments.The research results show the rock mass of the slope undergoes failure along the sliding slope surface from top to bottom,forming top and bottom stress concentration area are key control area;the slurry promotes the coupling of reinforced rock mass structures,hinders the 2-fold attenuation of rock mass strength with increasing temperature,with water reducing properties,bonding properties,and high temperature resistance;In the effectiveness test,the maximum displacement value of the slope rock mass was 64.9 mm,and the anchoring force remained above 70 kN.
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