植被生长初期机场生态边坡抗冲刷性能

为研究机场生态护坡的植被在生长初期抗冲刷能力的影响因素,对植被生长初期不同防护方式及不同植株密度的草皮进行直剪试验和抗冲刷试验,得到了不同生态防护方式下植株数量和土体粘聚力增量的关系式,不同防护方式不同植株密度植被的抗冲流速和冲刷破坏方式,分析了草株密度和防护方式对生态边坡抗冲刷能力的影响规律,得到了土壤粘聚力与草皮土抗冲流速的关系,并给出了工程应用的条件与方法。

A Study of Anti-erosion Properties on Airport Ecological Slope Vegetation at the Initial Stage of Growth

Aimed at the problems that the factors of the anti erosion capacity influences on the airport ecological slope protection vegetationat the initial stage of growth, this paper performs a direct shear test and anti erosion test on the turf of different planting density and protection modes, and obtains an equation on the numbers of plant and the soil cohesion increment in different ecological protection modes. On the basis of laboratory experiments, the anti erosion velocity and erosion damage modes are investigated. The influence laws of different planting density and protection modes on slope erosion are analyzed. In addition, the relationship between soil cohesion and turf soil impact velocity is explored, and the conditions and methods of the engineering applicationare given.