... CHUNG 1. 1 GII THIU CHUNG V ON TUYN: on tuyn cn thit k k thut thi cụng t Km0+900 n Km1+900 cú dc ngang sn t 1, 2% n 8,5%, cú cng trũn 1 17 5 ti Km1+00, 1 15 0 ti Km1+527,54, 1 17 5 ti Km1+700 v 2 17 5 ... a c k w N bu y c h xoi 2 .1, 55 1, 75 1, 0m 1, 75 2,5.5 Chiu sõu chõn tng chng xúi : h=hxúi + 0,5 =1, 0+0,5 = 1, 5m Chn h =1, 5m SVTH: Nguyn ỡnh Ninh- Lp 02X3B Trang 15 7 to k lic d o m o m w o ... u -tr a c k c bu y + Nu nn p cao hn 612 m thỡ di dc taluy phi thoi hn (11 ,75) v phn trờn (48)m dựng Taluy 1: 1,5 + Nn ng u cu v dc sụng ta ly cu to dc Taluy 1: 2 cho n mc nc thit k 0,5m + p nn trờn...