Ho' cht.fa nud'c Song Trau-Ninh Thu?n PH{) Ll)C 'fINH TOAN CAU.MANG , (V~ trf cau mang k, + 794 - Kenh chinh ) 2.1.TINH TOAN THUY LVC CAU MANG 2.1.1.'fai lieu co ban Luu hrong cau mang QTK = 3,2 m3/s - Qmax = 3,8 m3 Is Qmin = 1,3 m3/s MJ!c mroc thiet ke a) Th uong ltru = +,26,132 MNTK b) H~ hru :MNTK = + 25,772 - - Kenh thirong hru cau mang bk = 2,65 m; hk = 1,51 ; 1ci = 24,622; 1bo = 26,522 MNTK + 26,132, de) doc day kenh i == 0,0003 - Kenh hru cau mang bk= 2,65 m; h, = 1,51 ; Ai= 24,262; 1bo- = 26, 162 MNTK + 25,77 2, m = O,d9 doc day kenh i = 0,0003 so DO T:fN1I TOAN Thuyf':'t minh chung 67 HO' cht.ia nude Song Treu-Ninh Thuen :, jnh toan thuj luc cira vao ;vao tinh toan thuy hrc nhu dap tran dinh rong chay ngap - "· Q = s ip *b*h /2oz hay b= r " ·~' = 1,89 m \ Q · 5rp11 * h~2gz0 3,2 = == 0,985*0,96*1,40 * 4,43~0,08 chon cira vao be = m bng d6 ~ : Q - hru luong cau mang : Q = 3,2 m3 /s £ - H~ so hang ben = 0,985 cpn - he so luu toe = 0,96 h- cot mroc lUU chon z = 0,08 + h, = 1,51-0,08=1,43 m z - t6n that cot mroc cira vao : z = 0,08 m - 2.1.3.Tinh toanthuj hrc than mang Than mang bang BTCT mat c~t hlnh chir nhat, d ... thirc ket cau Cua vao, cira ket cau BTCT Xi phong ong thep ( thep day 10 + 12 mm) Ong xi phong d