@article { author = {Zarif shirdel Parhizgar, H. and Ekhtesasi, M.R.}, title = {Comparatives investigation of useful life and hazard risk based on return period watershed projects with AHP approaches (Case study:Khorasan Razavi basins)}, journal = {Extension and Development of Watershed Management}, volume = {2}, number = {6}, pages = {43-47}, year = {2014}, publisher = {Watershed Management Society of Iran}, issn = {2645-4777}, eissn = {}, doi = {}, abstract = {One of the major issues in the construction of drainage structures should be protected in proportionwith the river type. The design flow is based on the useful life period and also takes risks plays a veryimportant role in selecting the location and type of structures and its design, ultimately. In this study,the spatial distribution of watershed management structures based on river order in 13 the study watershedis located in the province of Khorasan. Results expressed that in useful 5 year, With an acceptable hazardrisk of 25% for straw dam and Rocky dam structures, in useful 10 year with hazard risk of 20% for thegabion, in useful 15 year with hazard risk of 15% for the cement dams and in useful 20 year with hazardrisk of 10% for earth dams Based on the analytic hierarchy process had the highest scores. While The rateof return on plan acceptable straw dam structures Rocky dam and gabion structure to the 2x and forcement dams and earth dams 4x values is also used in the design is‌ implemented.}, keywords = {Watershed management Structure,useful life,hazard risk,Analytical Hierarchy Process (AHP),Razavi Khorasan}, title_fa = {بررسی تطبیقی عمر مفید و ریسک خطر در پروژه های آبخیزداری با روش تحلیل سلسله مراتبی AHP (مطالعه موردی: حوزه های استان خراسان رضوی)}, abstract_fa = {}, keywords_fa = {سازه های آبخیزداری,عمر مفید,ریسک خطر,تحلیل سلسله مراتبی (AHP),خراسان رضوی}, url = {https://www.wmji.ir/article_699909.html}, eprint = {https://www.wmji.ir/article_699909_0cbf594549212f8509c63d02bbcc0c1a.pdf} }