降雨条件下土工布对边坡侵蚀影响分析
Analysis of Influence of Geotextiles on Slope Erosion Under Rainfall Conditions
王会军 1王桂新 1王震 1岳智强 1王绪勇2
作者信息
- 1. 青岛地质工程勘察院(青岛地质勘查开发局),山东 青岛 266000
- 2. 青岛地矿岩土工程有限公司,山东 青岛 266000
- 折叠
摘要
自然因素和人类活动对库岸边坡稳定性有不利影响,严重时导致库岸边坡滑坡灾害.为此,本文依托水库边坡工程,设计了降雨条件下库岸边坡试验模型.通过对比裸坡、土工膜和土工布方案下降雨收集率、泥沙量以及泥沙含量结果,确定了合理的护坡方案.系统对比了不同土工布间隔和宽度下的试验结果,优化了本工程土工布参数.研究表明,土工布护坡方案比土工膜护坡方案在泥沙量和泥沙含量的改善效果更好;土工布宽度越大、间隔越小时,降雨对边坡的侵蚀作用被削弱的最为明显,土工布宽度5cm、间隔0.2m的护坡方案最佳.本文研究方法和内容可为类似工程提供指导.
Abstract
Natural factors and human activities have adverse effects on the stability of the bank slope of the reservoir,and lead to the landslide disaster of the bank slope in serious cases.Therefore,based on the reservoir slope project,this paper designs the reservoir bank slope test model under rainfall conditions.By comparing the results of rainfall collection rate,sediment amount and sediment content under bare slope,geomembrane and geotextile schemes,a reasonable slope protection scheme is determined.The test results under different geotextile spacing and width are compared systematically,and the geotextile parameters are optimized.The results show that the geomembrane slope protection scheme has a better effect on the improvement of silt and sediment content than the geomembrane slope protection scheme.The larger the geotextile width and the smaller the interval,the most obvious erosion effect of rainfall on slope is weakened.The slope protection scheme with geotextile width of 5cm and interval of 0.2m is the best.The research methods and contents of this paper can provide guidance for similar projects.
关键词
库岸边坡/降雨条件/土工布/边坡侵蚀Key words
bank slope/rainfall conditions/geotextile/slope erosion引用本文复制引用
出版年
2024
NETL
NSTL
万方数据