BI TP LN

THU LC CNG TRNH

Trng i hc Thu Li
B mn Thu Lc
H tn sinh vin:

Lp: 57LT

S bi tp:

Ging vin hng dn: PGS. TS. H Vit Hng

Hn np bi tp: Tit 10, th Su, ngy 11/3/2016

Ni dung: Trn sng S s xy mt p trn T nng cao mc nc, nhm a nc vo

knh chnh BC. u knh c mt cng l thin B iu tit lu lng.

Yu cu:
1. p trn thc dng hnh cong khng chn khng, xc nh cao trnh nh p trn Z0
ng vi lu lng thit k, QTK v mc nc thit k, ZTK, trn sng, bit lu lng n
v cho php i vi nn h lu sau p l [q]. V mt ct ngang ca p trn.
2. Xc nh hnh thc ni tip h lu p trn T vi mi cp lu lng v tm lu lng
tnh ton tiu nng. Xc nh kch thc ca b tiu nng. V s dng chy qua p
trn v h lu trc v sau khi c b tiu nng.
3. Thit k mt ct ngang knh chnh BC di 6 km (tnh b v ho). Knh c mt ct ngang l
hnh thang cn vi dc mi m, h s nhm n, dc y knh So. Lu lng thit k
knh l QKTK. Cc lu lng kim tra: Qmin = k1.QKTK v Qmax = k2.QKTK. Mt ct knh
thit k phi tho mn 2 yu cu sau:
0,3 m/s v 1,5 m/s
3

b
6.
ho

Vi mt ct knh chn, xy dng quan h gia lu lng vi su dng chy u,

Q~ho, trn knh t Qmin ti Qmax.
4. Khi dn lu lng QKTK vo knh chnh BC, hy tnh v v ng mt nc trn dc
nc DE bng phng php sai phn.

5. Xc nh cao trnh y cng v b rng cng ly c lu lng thit k ca knh khi

mc nc trong sng l nh nht, lc cng lm vic nh mt p trn nh rng.
Chnh lch mc nc trc v sau cng l Z.
6. Vi mc nc sng thit k ZTK, tnh cao m cng a ly c lu lng QKTK. V
mt ct ngang v dc ca cng theo ng kch thc v t l.

Cc s liu chung
1. Quan h lu lng vi mc nc ngay sau p trn:
3

Q (m /s) 2390
24.85
Zh (m)

Bng 1: Quan h Q~Zh ngay sau p trn

2850 3250 3750 4170 4430 4650
25.35 25.9
26.6
27.2
27.65 28.15

4800
28.65

2. Chiu rng sng thng lu p ly bng 1,4 ln chiu rng ton b p (k c m).
3. Knh h lu p c mt ct ngang l hnh ch nht, chiu rng bng chiu rng ton b
p k c m.
4. Mi khoang p c chiu rng t 1015 m; m tr ca p dy 23 m.
5. Chiu rng mi ca cng t 24 m; chiu dy m cng 0,60,8 m.
6. Cao trnh y cng bng cao trnh y knh.
7. Dc nc DE mt ct ch nht c: chiu di Ld = 300 m, dc y l Sod = 0,01; h s
nhm n = 0,017 v chiu rng bd = 0,7 bknh.
Cc s liu cho tng sinh vin
1. S liu v p trn
Bng 2: Mc nc thit k v lu lng thit k ca p trn T
[q] m2/s
Z01 (m)
Z0 (m)
ZTK (m)
QTK (m3/s)
20,5

19,0

2. Cc s liu v knh chnh BC v cng l thin B

QKTK (m3/s)

So
0,0001

Bng 3: Knh chnh v cng l thin

m
n
k1
k2
0,6

1,4

Z (m)
0,3

Ch :
Bi tp phi vit tay trn giy kh A4, ng ba, ghi r h tn SV, lp. Cc
trang c nh s, trang u tin l bn in bi tp. Cc hnh phi v trn giy
k li theo ng kch thc v t l.

TM TT NI DUNG BI TP LN
Chng 1: TNH TON P TRN NG VI LU LNG THIT K QTK V MC NC
THIT K ZTK

1.1. Chn hnh dng p.

1.2. Xc nh cao trnh nh p trn.
1.3. V mt ct p trn.
Chng 2: XC NH HNH THC NI TIP H LU P TRN T VI CC CP
LU LNG
2.1. Xc nh hnh thc ni tip ng vi mi cp lu lng v tm lu lng tnh ton tiu
nng.
2.2. Tnh ton kch thc ca b tiu nng.
2.3. V dng chy qua p trn v h lu, trc v sau khi c b tiu nng.
Chng 3: TNH TON KCH THC MT CT NGANG KNH CHNH BC, V
NG MT NC TRN DC NC DE
3.1. Xc nh kch thc mt ct ngang ca knh chnh BC.
3.2. Xy dng quan h Q~ho trn knh.
3.3. Tnh v v ng mt nc trn dc nc DE bng phng php sai phn.
Chng 4: XC NH KCH THC CNG L THIN B
4.1. Xc nh cao trnh y cng.
4.2. Tnh chiu rng cng khi mc nc trong sng l nh nht.
4.3. Tnh cao m cng a ly c lu lng QKTK.
4.4. V mt ct ngang, ct dc v mt bng ca cng.

BI TP LN
THY LC CNG TRNH
Lp 57LT. Hc k I - nm hc 2015-2016
H v tn

TT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39

Trn Duy

Anh

Trn Vn

Anh

Nguyn Ngc

Cng

Nguyn Hong

Dng

Phm Quang

L Th Thu

Bi Vn

Hi

L Thanh

Hi

Nguyn Vn

Hi

Nguyn Vn

Hi

Nguyn Th

Hin

Nguyn Th

Hin

L c

Hiu

Trn c

Ha

o Th

Hu

Nguyn Vn

Hng

Nguyn Trng

Huy

L Th Thu

Huyn

Nguyn Th

Huyn

Phan Th Thu

Huyn

Trng

Khi

Hong

Long

Nguyn Danh

Long

Nguyn Thnh

Lun

Nguyn Tin

Mnh

Nguyn Th

Minh

Trn Th

Ngc

Ha Th

Nh

Phm ng

Phong

Ng nh

Phng

Nguyn Th Mai

Phng

inh Xun

Quang

Nguyn Quang

Sn

on Phng

Tho

L Vn

Thng

L Xun

Thng

Bi Thanh

Th

H Th

Thu

Nguyn Th

Thu

[q]
(m /s.m)

ZTK
(m)

QTK
(m3/s)

QKTK
(m3/s)

41
41.1
41.2
41.3
41.4
41.5
41.6
41.7
41.8
41.9
42
42.1
42.2
42.3
42.4
42.5
42.6
42.7
42.8
42.9
43
43.1
43.2
43.3
43.4
43.5
46.8
43.6
43.7
43.8
43.9
44
44.1
44.2
44.3
44.4
44.5
44.6
44.7

45
45.1
44.5
44.6
44.7
44.8
44.9
45
45.1
45.2
45.3
45.4
38.6
38.7
38.8
38.9
44
44.1
44.2
44.3
44.4
44.5
44.6
44.7
46.1
44.4
44
44.1
44.2
44.3
44.6
44.7
47.4
47.5
47.6
47.7
47.8
47.9
44

4380
4390
4400
4310
4320
4330
4340
4350
4090
4100
4110
4120
4130
4140
4150
4160
4170
4180
4190
4200
4210
4220
4230
4240
4250
4260
4480
4270
4280
4290
4300
4310
4320
4330
4340
4420
4430
4440
4450

56.1
56.2
61.8
61.9
50
50.1
50.2
56.8
56.9
57
57.1
57.2
57.3
57.4
57.5
57.6
57.7
57.8
57.9
58
58.1
58.2
58.3
58.4
58.5
58.6
61.1
58.7
58.8
58.9
59
59.1
59.2
60.3
60.4
60.5
60.6
60.7
60.8

0.75
1
1.25
1.5
0.5
0.75
1
1.25
1.5
0.5
0.75
1
1.25
1.5
0.5
0.75
1
1.25
1.5
0.5
0.75
1
1.25
1.5
0.5
0.75
1
1.25
1.5
0.5
0.75
1
1.25
1.5
0.5
0.75
1
1.25
1.5

0.015
0.017
0.012
0.013
0.014
0.015
0.017
0.012
0.013
0.014
0.015
0.017
0.012
0.013
0.014
0.015
0.017
0.012
0.013
0.014
0.015
0.017
0.012
0.013
0.014
0.015
0.017
0.012
0.013
0.014
0.015
0.017
0.012
0.013
0.014
0.015
0.017
0.012
0.014

Ghi
ch

TT
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55

H v tn
Nguyn Vn

Thy

Nguyn Huyn

Thng

Nguyn Tin

Thng

Nguyn T

Tin

Khc

Trc

Nguyn Minh

Trng

Trn Anh

Cao Mnh

Tun

L Vn

Tun

Thanh

Tng

Nguyn Tin

Tng

Nguyn Th Bch

Vn

Kiu Th

Xinh

[q]
(m /s.m)
44.8
40,9
41
41.1
41.2
41.4
41.5
41.6
41.7
41.8
41.9
42
42.1
42.2
42.3
42.4
3

ZTK
(m)
44.1
44.2
44.3
44.5
44.6
44.7
44.8
44.9
45
45.1
45.2
45.3
45.4
45.5
45.6
45.7

QTK
(m3/s)
4460
4000
4010
4020
4030
4050
4060
4070
4080
4090
4100
4110
4120
4130
4140
4150

QKTK
(m3/s)
60.9
56
56.1
56.2
56.3
56.5
56.6
56.7
56.8
56.9
57
57.1
57.2
57.3
57.4
57.5

0.5
1
1.5
0.5
0.75
1
1.25
1.5
0.5
0.75
1
1.25
1.5
0.5
0.75
1

0.017
0.012
0.013
0.014
0.015
0.017
0.012
0.013
0.014
0.015
0.017
0.012
0.013
0.014
0.015
0.017

Ghi
ch

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