紅壤噴灑黏着劑之防冲效果探討

The Study on the Sprayed Adhesive Effect of Red Soil Erodibility

許中立(Chung-Li Hsu)

《坡地防災學報》 8卷2期 (2009/07) Pp. 45-55

https://doi.org/10.29995/JSHR.200907.0004

摘要

臺灣因地形、地質與氣候的關係故崩塌與土壤流失頗多，加上人為過度開發與土地超限利用結果，遂造成不少土砂災害問題。為了加速國土的復育，水土保持植生工程中常加入黏著劑除使植物種子有效的停留於坡面生長外，也有保護坡面防止土壤沖蝕的目的。本研究乃以亞熱帶地區常見的紅壤為試樣，噴灑常用的三種黏著劑，並在降雨強度50、80與110mm/hr及坡度30、40與55%的情況下進行60min試驗。試驗結果得知，高分子黏著劑較其他二種材料能保持穩定的抗沖蝕效果，壓克力樹脂於高強度降雨沖蝕較多，德國柏油乳劑則坡度愈陡沖蝕愈多。

關鍵字

土壤沖蝕 ； 黏著劑 ； 降雨強度 ； 坡度

並列摘要

Because of the topography, geology and climate, so there are quite many landslides and soil loss in Taiwan. Furthermore, people exceed the land utilized limit for overdevelopment and the result should cause much more sediment disasters question. In order to accelerate national land reconstruction, vegetation engineering of soil and water conservation often put adhesive into the project of sprayed work to make plant seed effective staying and growing, and there is the purpose of protecting slope land surface for soil erosion. This research regard common red soils of Subtropical area as testing samples, spray three kinds adhesive to carry on 60min test with the rainfall intensity 50, 80,110mm/hr and slope gradient 30, 40, 55%. The results show that soil spraying with polymer adhesive treatment can remain stable reodibility more than other two kinds material. Soil spraying with acrylic resin treatment has more soil erosion in high strength rainfall. Soil spraying German bitumen emulsion treatment has more soil erosion in steep slope conduction.

並列關鍵字

Soil erosion ； Adhesive ； Rainfall intensity ； Slope