今年高考水文題目 - 土木
By Yuri
at 2012-07-18T00:47
at 2012-07-18T00:47
Table of Contents
http://wwwc.moex.gov.tw/ExamQuesFiles/Question/101/101090_35150.pdf
不好意思,小弟有點拙,所以想問看看做法
題目是高考第二題的第二小題
│A│ │B│ │C│ │E│
-----------------------
5------4-----3-----2----1
-----------------------
│E│ │F│ │E│ │D│
ABCDE是排水的面積
12345是人孔,中間以下水道連接
要分別求3.2.1人孔的尖峰流量
ABCDF流入時間為7分鐘 E為五分鐘
排水孔間時間為5分鐘
降雨強度是 I=1039/(t+12)^0.75
我的問題是想知道集流時間的取法
人孔3:A區的集流時間17分鐘
B.F區12
C區7
E區15
第二個E5
然後再把六區的Q=CIA 加起來
應該是這樣吧!!
謝謝各位
--
Tags:
土木
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