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Abstract

Many side slope of rural roads in national park areas suffered from shallow landslide and soil erosion as a results of excessive runoff and inefficient drainage system leading to high pore-water pressure during prolonged heavy rainfall. This paper presents a design of bio-engineered slope using flapped soil bags with rows of screw piles and live stakes. This method can be constructed relatively easily without heavy equipment, with low environmental impact, and fast rehabilitation of natural environment which is suitable for national park. Bio-engineering work also employs local workers with suitable skills in planting which can be thought of as a foundation economic stimulus. This study also investigates the bio-engineered slope behaviour after completion by means of instrumentations including soil moisture sensor, tensiometer and tilting of screw piles to check the long term performance.