塔克拉玛干沙的承载能力特性研究

Study on the Loading Capacity of Takelamagan Desert Sand

为较精确分析、计算车辆驱动轮的受力,预测提高车辆沙地牵引通过性,采用平板的载荷—沉陷试验方法,对塔克拉玛干沙进行了载荷倾角在0°～25°之间变化的倾斜载荷沉陷实验。结果表明,随着载荷倾角的增大,平板沉陷量增加,沙土承载能力降低。提出一种利用垂直载荷—沉陷关系预测倾斜载荷—沉陷关系的新方法,并对预测结果与实测值进行比较,二者基本一致。

A series of plate-sinkage tests with load inclination angle of 0°-25° were conducted on Takela-magan desert sand. The results indicated that increase of load inclination causes increase of plate sinkage and a decrease of sand bearing capacity. A new method which evaluates sand inclinating load capacity by using vertical load was proposed.