草皮护坡抗冲性能试验研究
Experimental Research on Erosion-resisting Characteristics of Revetment with Grass Cover
在护岸工程中,草皮作为低渗透性河渠中抵御外部流场的表面防冲层十分有效。室内冲刷试验表明,土壤的结构性质和植被生长的密度及不均匀程度是影响草皮抗冲性能的主要因素。土壤自身的抗冲性能越高,草皮的抗冲性能也越高。植被生长相对稀疏的区域容易出现严重的局部冲刷,加速整块草皮的冲蚀。植被覆盖度高及生长均匀程度好的草皮具有更高的抗冲性能。草皮护坡的抗冲流速与抗冲历时成反比。设置加筋材料能够显著提高天然草皮的抗冲性能。
In revetment engineering, turf is an effectual scour protection upper layer against exterior flow field for river bank that has low permeability. Laboratory scour experiment proves that, the main factors that affect the erosion-resisting characteristics of turf are the structure of soil, and the density and the degree of irregularity of grass. Well-graded soil usually brings high erosion-resisting characteristics of turf. Heavy local scour may occur in a sparse zone of turf, which will accelerate the erosion of the whole turf. Turf with high coverage and well regularity will has higher erosion-resisting characteristics. Resistant velocity of turf is in inverse ratio to its resistant duration. Reinforcement materials can improve the erosion-resisting characteristics of natural turf remarkably.
钟春欣、张玮、应瀚海
治河工程、防洪工程水工材料
草皮护坡,岸坡冲刷三维植被网加筋草皮抗冲性能试验研究
grass coverbank erodingthree-dimensional vegetation neteinforced turfflow resistanceexperimental research
钟春欣,张玮,应瀚海.草皮护坡抗冲性能试验研究[EB/OL].(2005-12-14)[2025-08-23].http://www.paper.edu.cn/releasepaper/content/200512-371.点此复制
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