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ضوابط طراحي تعيين فاصله و عمق زهكش‌هاي زيرزميني

اين نشريه با عنوان «ضوابط طراحي تعيين فاصله و عمق زهكش‌هاي زيرزميني» ابتدا به بيان عوامل موثر در فاصله و عمق زهكش‌ها مي‌پردازد. اين قسمت در برگيرنده مطالبي در مورد شناسايي نيمرخ خاك، هدايت هيدروليك خاك، ضريب زهكشي، آبدهي ويژه، عمق مجاز تثبيت سطح ايستابي و عمق بهينه نصب زهكش زيرزميني است. سپس ضوابط طراحي فاصله زهكش‌ها براساس روش‌هاي متداول در جريان‌هاي ماندگار و غيرماندگار ارائه مي‌شود. در روش‌هاي ماندگار، روابط ارنست - هوخهات و كركهام و در روش‌هاي غيرماندگار، روش گلوور - دم مورد توجه قرار گرفته و روش تعادل ديناميكي نيز تشريح شده است.

کمیته آبیاری و زهکشی
شماره استاندارد و پیش‌نویس 252
شماره معاونت برنامه‌ریزی و نظارت راهبردی 319
تاریخ انتشار 1384
تاریخ پیش‌نویس 1381
دریافت فایل
  تاریخ ثبت : 1391/08/01
 dibagroup
 2554

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