改善强烈受天气影响的泥石斜坡的透特性,用大米灰灰
Honghuan Cui1,2, Biao Ma3, Zhiqiang Hu1
1School of Architecture and Construction, Hebei University of Architecture, Hebei, 075000, China.
Scientific reports
|March 4, 2026
概括
米灰 (RHA) 改善了土壤的特性,增强了保留水的能力,降低了染的泥石坡上的水流. 这项农业废物修正案提供了一种可持续的解决方案,以减轻降雨引起的斜坡故障.
科学领域:
- 地质技术工程 地质技术工程
- 土壤科学 土壤科学
- 环境工程 环境工程
背景情况:
- 经过气候变化的泥石斜坡表现出膨胀-收缩特性,增加了易受降雨引起的不稳定性.
- 农业废物,如大米灰 (RHA),为土壤稳定提供了潜在的可持续修正.
研究的目的:
- 调查米灰 (RHA) 作为土壤修补剂的有效性,以改善透特征和耐候泥石斜坡的稳定性.
- 量化不同RHA剂量对土壤保留水,透性和湿面迁移的影响.
主要方法:
- 利用压力板装置和一维的垂直透试验来评估土壤的液压性能.
- 研究了从0%到8%的RHA剂量对土壤样本的影响.
- 开发并验证了一种优化的Green-Ampt模型,其中包括RHA剂量和土壤可塑性.
主要成果:
- RHA显著提高了土壤的水容量.
- 不和的液压导电性降低了,并且随着RHA含量的增加,湿面的前进速度减慢了.
- 在6%的RHA下,湿前部迁移时间到40厘米深度翻了一番,表明透性有所改善.
- 优化的Green-Ampt模型准确地预测了透行为,超过了传统模型.
结论:
- 米灰有效地改变了土壤孔隙结构,增强了不透性并减轻了斜坡失效的风险.
- 该研究为广泛的泥石区域在地质工程中利用RHA提供了理论基础.
- RHA提供了一种实用和可持续的解决方案,以提高易受降雨影响的斜坡的稳定性.
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