考虑根系作用的草本植物护岸平行水流冲刷机理与量化

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中图分类号：TV442. 3+2 文献标识码：A 文章编号：1001-9235（2025）08-0089-09

Mechanism and Quantification of Parallel Flow Erosion of Herbaceous Plant Revetment Considering Root Action

WANG Qi’，MAO Shuo ，ZHAO Jinyong'，DING Yang'，WANG Weijie'，XUE Yang？，CUI Ziteng  CHEN Wangyang

（1.ChinanstituteofWaterResouresandHdropoerReseacheijing8，Cina;2.NrtheasteUivesityatQigdao Qinhuangdao O660O4， China; 3. China Water Investment Co.，Ltd.，Beijing 10o053，China）

Abstract：Theexisting studiesonerosionofherbaceousplantrevetmentoften haveunclearanalysisofmechanismand processand inconsistentassumptionsofcalculationequationswiththeactualerosionphenomena.Todeterminetheantierosioncharacteristicsof ecologicalrevetmentbasedonherbaceousplantsundertheconditionofparalelflow，thispapersystematicallyanalyzestherosion processandquantitatieexpresinarameters.Iisroposedthatterosionrocssexperencstwstagesmelyoioat anddestruction，whichcanbequantifiedwitherosionrateanderosiondestructionvelocity，espectively，withthecoesoding calculationformulasproposed.Theformulasareverifiedbytheexperimentsofparallelflowerosionandplantrootmeasurementin laboratorywithsamplescolectedfromoriginalecologicalrevetmentwithgrassedslopesalong theYongdingRiverdiversionchanel. Theresultsshowtattheforulasaeingodcfoityndtherosinlossefienthasasigcantexpoetialorelawith theerosiontime.ThecoeficientoflowvelocityreductioncausedbyherbaceousvegetationisO.661～0.781.Theeroris5. 08% for the destruction velocity （2.56m/s ）calculated by the erosion destruction formula in comparison with the measured destruction velocity 一 2.69m/s ）.Theresearchresultscanbeappliedtothedesignof herbaceous vegetationforecologicalrevetment，thedeterminationof therecurrenceperodofvegetatiodsignandtheevaluatiooftefectofexistingrevetment，hicheofgeatsigificaceforte ecological protection and restoration of rivers.

Keywords：ecological revetment; plant roots;erosion loss coefficient;erosion rate

河岸冲刷问题在河流生态治理工作中具有普遍性和严重性，抗冲流速往往是河道设计工作者最为关心的安全参数，但生态护岸抗冲性能往往难以定量表达。（剩余12469字）