台湾特殊地质区水土保持工法之运用

防冲蚀截水草沟藉由在沟槽中加销一或多层具柔韧、耐腐蚀等材质之细网围保护网，并於沟中以50cm间距铺钉一束防冲截留束，可有效强化沟槽抗水流冲刷能力。防渗蚀喷浆式排水沟系藉由沟底增设渗流水截导装置，并以高压推力将泥浆强力的嵌入泥岩沟槽每一缝隙，使沟体等坡面紧密契合，再於两沟侧施设可遇热游移或触水膨胀等功能之防渗措施，有效排除传统排水沟於泥岩坡面施设后沟体易产生裂隙、断裂之问题，使其能稳定发挥其功能。防冲蚀植生挡土栅施工法具材质轻巧、设置简易、可随坡表微地形紧贴坡面，并能蓄积多量植生材料及发挥分段排除坡面水等多种功能，这些特征适可有效因应泥岩恶地各项立地条件。解决昔日坡面植生工程各项问题。

Application of Techniques Used for soil and Water Conservation in Special Soils in Taiwan

in the erosion preventive water interception gully, a layer or multiple layers of protective mesh nets made of soft, elastic and tolerant to weathering materials are installed.In the gully a bunch of hay is nailed in every 50 cm intervals to harden effectively the preventation of water erosion.In the seepage erosion preventive drainage gully, the.bottom of gully is designed to intercept the seepage water.The cement is sprayed forcedly with high pressure to every possible corners so that the body of gully is tightly associated the mudstone slope surface.The two sides of a gully are also designed that they can move freely when swelling as contacting with water or high temperatures.These designs of drainage gully are effective prevent the leaking and broken which are commonly occurred in the traditional drainage gully.The materials and techniques used for erosicn preventive vegetation retaining fences are simple and light in weight.These fences can he easily Installed and are tightly retaining a large amount of vegetation materials as well as draming runoff water.These charaders meet the requirements of mudstohe bad land situations and solve the vegetation problems faced in the past.