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کاهش سیلاب در حوضه های شهری با استفاده از LID- BMPS در مدل SWMM و انتخاب گزینۀ برتر با روش AHP- TOPSIS (مطالعۀ موردی: منطقۀ شهرک گلستان سمنان) | ||
اکوهیدرولوژی | ||
مقاله 13، دوره 6، شماره 4، دی 1398، صفحه 1003-1013 اصل مقاله (969.38 K) | ||
نوع مقاله: پژوهشی | ||
شناسه دیجیتال (DOI): 10.22059/ije.2019.284215.1148 | ||
نویسندگان | ||
سیده زهرا میرعمادی1؛ حجت کرمی* 2؛ خسرو حسینی3؛ سید علی اصغر هاشمی4 | ||
1دانشجوی کارشناسی ارشد مهندسی آب و سازه های هیدرولیکی، دانشکدۀ عمران دانشگاه سمنان | ||
2استادیار گروه مهندسی آب و سازه های هیدرولیکی، دانشکدۀ عمران دانشگاه سمنان | ||
3دانشیار گروه مهندسی آب و سازه های هیدرولیکی، دانشکدۀ عمران دانشگاه سمنان | ||
4استادیار مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان سمنان | ||
چکیده | ||
با گذشت زمان و پیشرفت تمدن، دسترسی به منابع آب باکیفیت و کافی به منظور تأمین نیازهای جوامع انسانی بسیار مهم است. با افزایش سطوح نفوذناپذیر در مناطق شهری و مخاطرات سیلاب ناشی از آن، دیدگاه نوین روشهای مدیریتLID- BMPS، برای بهکارگیری رواناب سطحی، کاهش دبی پیک و جلوگیری از سیلاب در حوضههای شهری روی مناطق توسعهیافته یا در حال توسعه مورد توجه قرار گرفته است. در پژوهش حاضر، تأثیر اصلاح ابعاد کانال، طراحی مخزن برای کنترل سیلاب و تأمین آب مورد نیاز فضای سبز منطقه و استفاده از تأسیسات LID شامل اجرای 100 درصد روسازی نفوذپذیر برای سطح پیادهروها و بشکههای باران در دو حالت (استفاده از 100 درصد سطح پشتبام و استفاده از 50 درصد سطح پشتبام) روی کاهش دبی اوج و حجم سیلاب 12 زیرحوضه در محدودۀ مطالعاتی شهرک گلستان واقع در شهر سمنان با مدل SWMM ارزیابی شد. در نهایت، با استفاده از روش AHP- TOPSIS،بشکههای باران (استفاده از 50 درصد سطح پشتبام)، با حدود 81 درصد کاهش دبی پیک سیلاب برای دورۀ بازگشت طراحی 5 سال و 78 درصد کاهش دبی پیک سیلاب برای دورۀ بازگشت طراحی 10 سال، رتبۀ نخست و اصلاح ابعاد کانال، آخرین رتبه را به خود اختصاص دادهاند. | ||
کلیدواژهها | ||
روشهای LID- BMPS؛ کاهش سیلاب؛ مدل SWMM؛ AHP- TOPSIS | ||
عنوان مقاله [English] | ||
Flood Reduction in Urban Basins Using LID- BMPs IN SWMM Model and Selecting The Best Option With AHP- TOPSIS (Case Study: Golestan Area in Semnan) | ||
نویسندگان [English] | ||
Seyedeh Zahra Miremadi1؛ Hojat Karami2؛ Khosrow Hosseini3؛ Sayed Ali Asghar Hashemi4 | ||
1M.Sc Student, Department of Water Engineering and Hydraulic Structures, Faculty of Civil Engineering, Semnan University, Semnan, Iran | ||
2Assistant Professor, Department of Water Engineering and Hydraulic Structures, Faculty of Civil Engineering, Semnan University, Semnan, Iran | ||
3Associate Professor, Department of Water Engineering and Hydraulic Structures, Faculty of Civil Engineering, Semnan University, Semnan, Iran | ||
4Assistant Professor, Agriculture and Natural Resources Research and Education Center of Semnan, Semnan, Iran | ||
چکیده [English] | ||
With the passage of time and progress of civilizations, access to sufficient and high-quality water resources in order to provide the needs of human societies, becomes ever more important. With increasing impenetrable surfaces in urban areas and its resulting flood hazards, the new prespective of management methods of LID- BMPS has been considered in order to use surface run-off, decreasing peak discharge and preventing floods in urban areas on developed or developing parts. In this research, the effect of correction of channel dimensions, reservoir design for flood control and provision of required water for the green area and the use of LID facilities including implementation 100% of permeable pavement for sidewalk areas and rain barrels in two conditions (using 100% of the surface of the roof) and (using 50% of the surface of the roof) on decreasing peak discharge and the volume of flooding 12 sub-basing in the study area of Golestan settlement in Semnan city was evaluated using SWMM model. Finally, by using AHP- TOPSIS methods, rain barrels (using 50% of the surface of the roof) with about 81% reduction of peak discharge flood for the return period of deasining 5 year and 78% reduction of peak discharge flood for the return period of designing 10 years have been allocated themselves the first and the last rank of correction of channel dimensions. | ||
کلیدواژهها [English] | ||
LID- BMPS methods, Reduce flood, SWMM, AHP- TOPSIS | ||
مراجع | ||
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