履 带 装 备 超 湿 黏 土 壤 土 地 面 通 过 性 研 究

To solve the trafficability problem of track equipment on super-wetting clay soil，this study investigates the evaluation indexes of track equipment trafficability on super-wetting clay soil，and suggests revised trafficability rules of the track equipment on super-wetting clay-soil ground using the equipment driving speed，pretension，ground grade，and soil cohesion modulus. First，soil samples of clay soil are collected and the mechanical properties are tested. The parameters of mechanical properties and ground elevation information are thus obtained，and the power spectral density function of ground roughness is developed. Combined with specific structural parameters of the track equipment，this study also constructed a ground trafficability simulation model of track equipment on super-wetting clay soil，and it considered the load wheels’sinkages as evaluation targets. Based on the results obtained，the maximum settlement of the road wheel is 315. 01 mm，which is less than the ground clearance of track equipment. In addition，it analyzed the influencing factors of track-equipment's trafficability and obtained the changing laws of the crawler equipment trafficability on super-wet clay soil using the equipment speed，crawler pretension，ground grade，and soil cohesion modulus. The research results of this paper have good potential for engineering application，and can provide theoretical guidance and technical support for track equipment design and optimization.