Journal of Water and Soil Science
علوم آب و خاک
jwss
Agriculture
http://jstnar.iut.ac.ir
0
user
2476-3594
2476-5554
10.47176/jwss
fa
jalali
1398
9
1
gregorian
2019
12
1
23
4
online
1
fulltext
fa
تعیین حریم رودخانه زایندهرود با استفاده از نرمافزارهای ArcGIS، HEC-RAS و برنامه جانبی HEC-GeoRAS
Determination of the Boundaries of Zayandehrud River Bed Using Arc GIS, HEC-RAS and Hec-GeoRAS Extension
عمومی
Ggeneral
پژوهشي
Research
<div style="text-align: justify;"><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">شبیه</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">سازی</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">رفتار</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">هیدرولیکی</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">رودخانهها</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">و</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">تعیین</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">حریم</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">بستر</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">برای</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">اجرای</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">طرحهای</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">مهندسی</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">رودخانه،</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">پیشبینی</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">خسارات</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">ناشی</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">از</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">سیل</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">در</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">شرایط</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">مختلف</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">و</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">مطالعات</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">توجیهی</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">اقتصاد</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">ی - اجتماعی برنامه</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">های</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">کنترل</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">و</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">مهار</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">سیل</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">و</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">دیگر</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">مطالعات</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">وابسته</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">به</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">سامانه</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">رودخانهها</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">ضرورت</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">دارد</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">. </span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">در</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;"> این پژوهش حریم بستر و نقشه </span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">پهنهبندی</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">سیلاب</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">رودخانه</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">زایندهرود</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">در</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">بازها</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">ی بهطول 155 کیلومتر از سد تنظیمی زاینده</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">رود</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">تا</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">سد</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">انحرافی</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">نکوآباد</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">با</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">استفاده</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">از</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">نرمافزارهای</span></span></strong> <strong><span dir="LTR"><span style="font-size:9.0pt;">ArcGIS</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">، </span></span></strong><strong><span dir="LTR"><span style="font-size:9.0pt;">HEC-RAS</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;"> و برنامه </span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">جانبی</span></span></strong> <strong><span dir="LTR"><span style="font-size:9.0pt;">HEC-GeoRAS</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;"> تعیین شده</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;"> است</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">. </span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">به</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">ا</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">ین منظور نقشه</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">ها</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">ی رقومی 1:250000 پلان رودخانه تهیه و منطقه به 1085 مقطع عرضی تقسیم شد. ضریب مانینگ نیز بهروش کووان تعیین شد. درنهایت داده</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">ها</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">به</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">نرمافزار</span></span></strong> <strong><span dir="LTR"><span style="font-size:9.0pt;">HEC-RAS</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;"> وارد و تجزیه و تحلیل شدند. پس از تعیین محدوده سیل</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">گ</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">یر در دوره</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">ها</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">ی بازگشت 2، 5، 10، 25، 50، 100 و 200 ساله در تمامی مقاطع عرضی، نتایج به محیط </span></span></strong><strong><span dir="LTR"><span style="font-size:9.0pt;">ArcGIS</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;"> وارد شد و نقشه</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">ها</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">ی پهنهبندی سیلاب به</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">دست</span></span></strong> <strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">آمد</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">. </span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">نتا</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">یج این پژوهش نشان داد که از کل اراضی سیل</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">گ</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">یر 200 ساله، 96 درصد اراضی سیل</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">گ</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">یر مربوط به دوره بازگشت 25 سال است. دشت</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">ها</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">ی سیلابی بهدلیل نزدیکی به رودخانه و حاصلخیزی، محل زراعت و سکونت بسیار خوبی بهشمار می</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">رود</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;"> اما برای حفط امنیت و کاهش خطرات سیل باید حریم رودخانه بهطور کامل رعایت شود. در تمامی بازه</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">ها</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">ی مورد مطالعه نقاطی مانند روستاهای مارکده، برنجگان و بیستجان یافت می</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;">شود</span></span></strong><strong><span style="font-family:b lotus;"><span style="font-size:11.0pt;"> که حریم تعیینشده رعایت نشده است و درصورت وقوع سیل خسارات جبرانناپذیری بهبار خواهد آورد.</span></span></strong></div>
<div style="text-align: justify;">Simulation of the hydraulic behaviour of the river basin boundaries is important for river engineering projects, prediction of flood damages in different conditions and economic feasibility studies, flood control, and other social programs related to the system of the river. In this study, river bed and flood zoning map in the range of over 155 km from the Zayandehrud dam to Nekouabad Diversion Dam were addressed by using the software's ArcGIS, HEC-RAS and HEC-GeoRAS extension. For this purpose, a digital elevation map in 1: 250,000 scale was provided and cross-sectional area was divided in 1085. Manning roughness coefficient was determined by Cowan. Finally, data entered into the software HEC-RAS and was analysed. After determining the area of flood in the return periods of 2, 5, 10, 25, 50, 100 and 200 years in all cross sections, the results were entered into the ArcGIS environment and flood zoning maps were obtained. The results showed that of the 200-year flood lands, 96% of the land flood was related to the return period of 25 years.</div>
حریم بستر, HEC-RAS, دوره بازگشت, پهنهبندی سیلاب
Bed Privacy, HEC-RAS, Return Period, Flood Zoning
361
376
http://jstnar.iut.ac.ir/browse.php?a_code=A-10-498-20&slc_lang=fa&sid=1
J.
Abedi Koupai
جهانگیر
عابدی کوپایی
koupai@cc.iut.ac.ir