红黏土边坡防护生态轻型桩几何参数优化

为降低公路边坡因水土流失引发的病害，实现红黏土边坡的生态防护，对生态轻型桩进行定义并设计。分析当地大气影响急剧层深度，结合有限元模拟，确定生态轻型桩尺寸，对生态轻型桩几何参数进行优化。结果表明：生态轻型桩深度与土的湿度系数有关；孔径相同时，孔深与边坡坡度成正比关系、坡度相同时，孔径与孔深成反比关系，进而得到生态轻型桩的几何参数设计方法；吕梁地区红黏土边坡生态轻型桩几何参数为深度1.2 m,孔径10 cm,孔深80 cm。为公路边坡生态轻型桩的尺寸设计及优化，提高行车安全，实现边坡生态防护提供理论依据。

Optimization of geometric parameters of ecological lightweight piles for red clay slope protection

In order to reduce the road slope diseases caused by soil erosion and realize the ecological protection of the red clay slope, the ecological light piles are defined and designed. Analyze the depth of the acute layer of local atmospheric influence, combine with finite element simulation, determine the size of ecological light piles, and optimize the geometric parameters of ecological light piles. The results show that the depth of the ecological lightweight pile is related to the soil moisture coefficient; when the hole diameter is the same, the hole depth is proportional to the slope slope, and when the slope is the same, the hole diameter is inversely proportional to the hole depth, and then the geometric parameter design method of the ecological lightweight pile is obtained. ; The geometric parameters of the ecological lightweight piles on the red clay slope in Luliang area are 1.2m in depth, 10cm in diameter, and 80cm in hole depth. It provides a theoretical basis for the size design and optimization of ecological light piles on highway slopes, improving driving safety, and realizing slope ecological protection.