Report
Overseas Field Training：Erosion Protection Method to Irrigation Facilities in Cambodia
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| Erosion occurred along embankment (Takeo Province, Cambodia) | Admixture of soil-cement component material |
Place : Technical Service Centre Phase III, Ministry of Water Resources and Meteorology, Cambodia
Date : 4 August-4 September 2010
＜Report by Pheng Sokline＞
The overseas field training, funded by FOLENS program, was carried out in August 2010 by cooperation with Technical Service Centre Phase III and Ministry of Water Resources and Meteorology of Cambodia. Two sites are selected for this investigation. The main objectives are, to investigate the condition of irrigation facilities in Cambodia and obtain some mechanical properties of soils. The key findings of this training are, deteriorated irrigation facilities are one of the major concerns in field of agricultural development in Cambodia. Most of irrigation in Cambodia is earth-work; therefore, it is easily to erode. Erosion, cracks and high sedimentation are commonly found in most of irrigation project sites in Cambodia. The water washes away some part of canal banks and high sedimentation cause constraint on distribution of water to command areas.
To mitigate the impacts on service life of irrigation facilities, the appropriate measurements are needed in term of economy. The alternatives solutions which are proposed by Technical Service Centre (JICA) and local authority are applied to protect erodibidity of canal banks. Using brick and mortar to stabilize along the canal banks and soil cement stabilization are considered as effective way to mitigate the erosion rate. However, soil cement is found to be more effective in term of economy and construction method. Soil-cement made by mixing the soil from the paddy field, fine sand, and cement. It can reduce about half the cost of conventional hard materials and have the advantage of using soil at the field site and labour.Supervisor / Instructor and students traveled with :
Dr. Yuji Kohgo