车轮重复通过时新疆沙漠沙土力学特性的试验研究

Test Study on Dynamic Characteristic of Xin Jiang Desert Sand in the Case of Multiple Passage ofthe Vehicle Wheel

采用反复加、卸载法，以车轮和新疆沙漠沙土为研究对象，进行了车轮重复通过沙地工况的模拟试验，对沙土的动力学特性进行了研究，得出了该沙土的动特性参数的变化规律以及对车轮多次通过性的影响因素。

At the present,study on trafficability of sand off road vehicle is carried out,but the work done almost all focuses on the action between wheel and sand in the case of one time passage of the wheel.In this paper,simulated test with wheel of vehicle and desert sand from Xin Jiang is conducted.During the test,multiple loading and discharging method under repeating passage case is used.Dynamic characteristic of the sand is studied,and the changing law of the characteristic parameters and influence elements are obtained,which provides the foundation for more thorough and systematic study in this area.