Bể-lắng-đứng-I.docx - B lng ng I 5.5.1 Nhim v Nc thi...

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B l ng đ ng ể ắ I: 5.5.1 Nhi m v : N c th i t b đi u hòa đ c đ a vào b l ng đ ng đ t I b ng b m có l u ướ ượ ư ể ắ ơ ư l ng b ng l u l ng trung bình. Nhi m v c a b l ng đ ng l l ng t p ch t ượ ư ượ ể ắ phân tán nh (ch t l l ng) d i d ng c n l ng xu ng đáy b và thu các ch t n i ơ ử ướ trên b m t nh : d u m , b t …B l ng đ ng đ c xây d ng v i ph n l ng là ư ể ắ ượ bê tông hình vuông và ph n ch a bùn là hình nón. V t li u ch t o: bê tông c t ế ạ thép 5.5.2 Tính toán b l ng đ t ể ắ I: S d ng l u l ng trung bình đ tính toán cho b l ng I. Ch n b l ng có ti t ư ượ ể ắ ể ắ ế di n m t c t là hình tròn - Di n tích ti t di n t c a ng trung tâm ế ướ f = Q max. s V tt = 0,0041 0,015 = 0,27 m 2 Trong đó: Qmax.s là l
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