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以深圳市境内观澜河流域为例,在野外调查和试验研究资料的基础上,利用回归相关等分析方法,对工业机械夷平地侵蚀形式与特征进行了研究。结果表明,机械夷平地的主要侵蚀形式:开挖陡坡为重力侵蚀、开挖平地为雨滴溅蚀和片侵、堆积平地为切沟侵蚀、堆积陡坡为切沟侵蚀和片蚀;切沟的径流泥沙含量峰值先于雨强峰值出现,堆积陡坡坡面则滞后于雨强峰值;决定侵蚀量大小的主要因子是降雨强度,引起侵蚀最大 30min雨强的临界值为10.00mm/h;机械夷平地堆积陡坡坡面侵蚀模数达58 428 t/(km~2·a);机械夷平地规模的大小直接影响到河流泥沙含量的高低,受到机械夷平地明显干扰的河流断面泥沙含量是受到干扰较小河流断面的 2.5～5.5倍。
Taking Guanlanhe basin in Shenzhen as an example, based on the field investigation and experimental research data, the forms and characteristics of the erosion of industrial machinery were studied by means of regression analysis and other analytical methods. The results show that the main erosion forms of mechanical levee are: steep slope excavation is gravitational erosion, rapids splashing and intrusion on the flat ground, gully erosion on the flat surface, gully erosion and erosion on the steep slopes; The peak value of sediment content appeared before the peak of rainfall intensity, and the slope of steep slope landed behind the peak value of rainfall intensity. The main factor to determine the amount of erosion was the rainfall intensity, the critical value of rainfall intensity which caused the maximum erosion 30min was 10.00mm / h, The modulus of erosion on the steep slopes of the landfill is 58 428 t / (km ~ 2 · a). The scale of the mechanical levee directly affects the sediment content of the river. The sediment content of the river section disturbed by the mechanical levee is 2.5 to 5.5 times less disturbed river sections.