基于土工网的公路土石边坡固土性能

为了提高公路土石边坡的稳定性，拓展土工网新型材料的应用领域，采用室内模拟降雨冲刷装置,分别对公路土石边坡复合毯、三维网、单层网防护的不同坡度边坡进行了大量雨水模拟冲刷试验。分析在不同坡度、不同土工网防护下降雨量、水土流失面积、流失量、侵蚀模量值、抗冲刷时间之间相互关系。结果表明：得到了三种土工网的固土性能；建立了一定坡度下土体累积流失面积与时间关系模型；不同土工网应用于不同的使用条件。可见，不同土工网边坡防护的使用条件为土石边坡土体流失的防护提供了一种新的研究思路。

Study on the Earth-Fixing Performance of Slope With Earth-Rock Based on GeonetWEI Hong-bin1, Li Juan2,3, QIAO Jian-gang3*

In order to improve the stability of highway slope with earth-rock and expand the application of geonet, a large of rainfall simulation tests were carried out by rainfall simulation equipment for slopes of different gradients protected by composite geonet, three-dimensional geonet and single-layer geonet. The rainfall, the area of soil erosion, the amount of soil erosion, the modulus of soil erosion and anti-erision time with different protection measures and slope gradients were analyzed. As a result, the earth-fixing performance of three kinds of geonets is showed. The model between cumulative the area of soil erosion and time with a certain slope is established. And then different kinds of geonets should be appropriately applied to the different conditions. Thus it can be seen that the application conditions of different kinds of geonets provide a new research approach for the soil erosion of slope with earth-rock.