Method of mitigating the surface erosion of a high-gradient mudstone slope in southwest Taiwan

Der-Her Lee, Po Ying Chen, Jian-Hong Wu, Hui Ling Chen, Yi En Yang

研究成果: Article同行評審

14 引文 斯高帕斯(Scopus)

摘要

Soft mudstone dominates the rock mass at southwest Taiwan. Mudstone slakes significantly when it meets water due to a short diagenetic period and poor cementation. Gulleys are visible on the surface of mudstone slopes after rainfall. The low slaking durability resistance of the mudstone causes not only geographical badland but also erosion problems on the highway slopes in the mudstone area. An effective countermeasure for protecting the mudstone slope must contribute to a reduction in surface erosion; facilitate drainage from the slope surface during rainfall; and incorporate a high-strength structure to fight against swelling stress, preserve vegetation, and contribute to slope stabilization. In this study, a new slope erosion countermeasure, the soil-tyre-vegetation method (STV), was applied to an excavated mudstone slope in southwest Taiwan. STV utilizes waste tyres, H-beams, and geotextile. Waste tyres are good for preserving the soil for vegetation on mudstone slopes, mitigating slope erosion. The H-beams support the weight of the vegetation and the soil-filled tyres. The geotextile prevents the loss of fine-grain soil and guarantees drainage from the slope during heavy rainfall. The experimental results for a mudstone slope with a slope angle of 45° showed that STV protected the mudstone slope and improved the condition of the vegetation on it.

原文English
頁(從 - 到)533-545
頁數13
期刊Bulletin of Engineering Geology and the Environment
72
發行號3-4
DOIs
出版狀態Published - 2013 11月 18

All Science Journal Classification (ASJC) codes

  • 岩土工程與工程地質
  • 地質學

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