GRUNT O‘ZANLI KANALLARNI GIDRAVLIK HISOBLASh MASALALARI UOʻK 631.623(043.3)
Referat
Grunt oʻzanli kanallarni loyihalashning asosiy vazifasi bu ortga qaytmas oʻzan deformatsiyalanishi sodir boʻlmaydigan mustahkam kanal shaklining oʻlchamlarini hisoblashdan iborat. Maqolada grunt oʻzanli kanallarni loyihalash uchun gidravlik hisoblashda oʻzan deformatsiyalanishi sodir boʻlmaydigan mustahkam kanal parametrlarini hisoblash masalalari toʻgʻrisida maʼlumotlar berilgan.
Bunda gidravlik modellash dasturlari yordamida kanalni dinamik mustahkamlikka tekshirish usuli orqali tabiat bilan hamohang ravishda ishlay oladigan dinamik mustahkam kanal parametrlarini qabul qilish zarurligi HEC-RAS dasturi yordamida modellashtirilgan va dala-tajriba maʼlumotlari bilan asoslanadi.
Tadqiqot natijalariga koʻra, grunt oʻzanli kanallarni loyihalash uchun gidravlik hisoblashda oqim va oqiziqning oʻzgaruvchan xarakterini hisobga olgan holda yangicha yondashuv talab qilinadi. Bunda loyqa bosishi tufayli deformatsiyalangan kanal oʻzani tub nishabligining tabiiy ravishda oshishini hisobga olgan holda kanal yon dambalarini mustahkamlash va oqiziq balansining muvozanatini taʼminlaydigan oqim nishabligini tanlash taklif qilinadi.
Taklif etilayotgan usulning mohiyati grunt oʻzanli kanallarni hisoblashda tabiat bilan hamohang va uzluksiz tozalash taʼmirlash ishlarini talab qilmaydigan dinamik mustahkam kanal parametrlarini qabul qilishdan iborat. Buning uchun grunt oʻzanli kanallarni gidravlik modellash dasturlari yordamida oqiziq transportini modellash talab etiladi.
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