采区车场设计.doc

黑龙江科技学院
实验报告
课程名称: 矿山规划与设计
专业: 采矿工程
班级: 采矿06-1班
姓名: 吴天伟
学号: 08
资源与环境工程学院
实验一:方案比较法上机编程
一、实验目的
,通过上机编制通用程序可以大大的减少计算量并能加深对方案比较法的理解。
,从而提高利用计算机和系统的观点解决实际问题的综合能力。
二、实验原理
以矿井优化设计中的方案比较法中的各种经济评价方法如年成本法、净现值法等方法和原理为基本原理。
三、实验学时
4学时。
四、实验仪器设备
计算机及编程软件。
五、实验要求
、净现值、投资偿还期,并进行方案的优劣比较。
,掌握方案比较法,并能应用编制的优化设计程序解决实际应用问题。
六、实验内容及结果
(包括学生在教师的指导下自主设计的已知条件和编制的计算机程序)。
本实验是利用净现值法比较方案的优劣,得到最优方案。
例题
某矿井的设计能力是180t/a,拟提三个方案,矿井第一年,第四年各投总资
50%,移交生产后,前四年为设计产量的50%,第五年达产,服务年限为80
参数如下:
能力建井期吨煤投资吨煤成本售价利率
A 180 5 10%
B 180 6 10%
C 180 7 10%
1,用年成本法评价A、B、C方案的优劣
A方案:
由年成本法公式有:
各年投资的净现值和:


各年运行成本的现值和
万元
所以,A方案的年平均成本:万元
B方案:
由年成本法公式有:
各年投资的净现值和:

万元
各年运行成本的现值和
万元
所以,B方案的年平均成本:万元
C方案:
由年成本法公式有:
各年投资的净现值和:

万元
各年运行成本的现值和
万元
所以,C方案的年平均成本:万元
2,用净现值法评价A、B、C方案的优劣
A方案:
万元
B方案:
万元
C方案:
万元
所以,A方案为方案最优。
在VB中编程序如下:
Dim a As Single, b As Single, c As Single, d As Single, e As Single, f As Single, g As Single, h As Single, i As Single, j As Single, k As Single, l As Single, m As Single, n As Long, o As Single, p As Single, q As Single, r As Single, s As Single, t As Single, u As Single, v As Single, w As Single, x As Single, y As Single, z As Single
Private mand2_Click()
Dim a1 As Single, a As Single, p As Single, b As Single, p0 As Single, c0 As Single
Dim c As Single, f As Single, g As Single, h As Single, i As Single, j As Single
Dim k As Single, l As Single, m As Single, n As Long, o As Single, q As Single
Dim r As Single, s As Single, t As Long, u As Single, v As Single, w As Single
Dim x As Single, y As Single, z As Single, d As Single
a = Val()
b = Val()
p = a * b
e = Val()
i = Val()
n = Val()
f = Val()
g = Val()
h = Val()
j = Val()
k = Val()
l = Val()
m = Val()
o =