Mechanism of Progressive Failure and Dynamic Reinforcement Technology for Fractured Rock Slopes in Rainy Regions
The fracturing of rock slopes in rainy regions is a significant issue affecting the operational safety of highways.To further study the deformation and failure process and mechanism of fractured rock slopes on mountainous highways under complex geological conditions in rainy areas,this paper made a detailed analysis on the stability and deformation of the fractured rock slope of the highway,taking the treatment of the slope on the right side from K66+250 to K66+534 of a certain expressway in Guangdong Province as an example,with numerical simulation and macroscopic analysis as the main means.The results show that:1)Microscopically,the failure sliding surface of the fractured rock slope exhibits the characteristics of serrated or stepped shapes developing along joints and bedding planes.Macroscopically,it has an arc-shaped failure mode similar to that of soil slopes.The slope deformation process has obvious characteristics of being deferred,progressive,and phased;2)Based on this,the idea of"giving priority to piles,combining piles with anchors,taking anchors as supplementary,and integrating groundwater drainage"was adopted to successfully treat this slope,and dynamic prevention and control measures and suggestions for this type of highway slope diseases were put forward,which have certain engineering practical significance.
slope diseasefractured rockdeformation stagedynamic prevention and control technology
万方数据
维普
