Research on the Movement Characteristics and Prevention of Dangerous Rocks and Rockfall on the Slope of Changjinghuang Railway
Based on the dangerous rock and rockfall sections at the entrance of Xiwuling Tunnel and Dongshan Tunnel on Changjinghuang Railway,and based on on-site investigation data and the development characteristics of dangerous rock and rockfall,this article uses RocFall software to establish a high steep slope rockfall motion analysis model.It systematically studied the movement trajectory and characteristics of dangerous rocks and rocks,revealed the characteristics of rock bounce and impact kinetic energy,and predicted the trajectory and distribution of falling points.It further verified and analyzed the protective effect of dangerous rock and rockfall on the slopes at the entrance of Xiwuling Tunnel and Dongshan Tunnel.The results indicate that due to the presence of vegetation covering soil on the slope,falling rocks are basically unable to directly fall into the open pit.Therefore,it is proposed to set up protective structures on the top of concrete slope protection and timely clean up dangerous rocks and falling rocks close to the open tunnel opening for prevention and control measures.
mountain railwayrockfallnumerical simulationmotion characteristicprevention and control plan
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