摘要
针对强降雨区域软弱陡坡生态修复需求,本研究通过优化植生水泥土配比,研制兼具抗冲刷性能与生态修复功能的基材。以福建省花岗岩残积土为基材主体,探究水泥(4%~7%)、改良剂(3%~7%)及有机物料(1%~3%)掺量对基材理化性能、抗剪强度及抗冲刷性能的影响。结果表明:水泥掺量增加显著提升基材抗冲刷性能和抗剪强度,但降低孔隙率与有机质含量;改良剂可短期调节基材pH值,有机物则显著提高孔隙率与有机质含量(18.65 g/kg)。综合性能表明,高水泥掺量(7%)配比(如7#、8#)在强降雨条件下兼具力学稳定性与生态适应性,为软弱陡坡生态修复提供了科学依据。
To meet the ecological restoration needs of weak steep slopes in high-rainfall areas,this study optimized the plant-cement soil ratio to develop a base material with both anti-scouring and ecological restoration functions.Using granite residual soil from Fujian as the main material,the study explored how cement(4%-7%),improver(3%-7%),and organic matter(1%-3%)content affect the material's physical and chemical properties,anti-shearing strength,and anti-scouring performance.Results show that increasing of cement content improves anti-scouring and anti-shearing strength but reduces porosity and organic matter content.The improver can regulate pH short-term,while significantly raises porosity and organic matter content(18.65 g/kg)of organic matter.High-cement-content mixes(7#and 8#)show both mechanical stability and ecological adaptability under heavy rain,offering a scientific basis for weak-slope ecological restoration.
出处
《福建建设科技》
2025年第4期66-69,共4页
Fujian Construction Science & Technology
基金
福建省交通运输科技计划项目(202213)
密集沟谷型软弱陡坡地基上超高路堤建造关键技术研究。
关键词
软弱陡坡
抗冲刷
生态修复
基材制备
weak steep slope
anti-scouring
ecological restoration
base-material preparation
