đồ án kỹ thuật xây dựng Thiết kế hồ chứa nước Sông Lanh - Ninh Thuận

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LỜI CẢM ƠN.
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AB">.1ST+U )*">AB'+-"?;
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"T !/-01234506">D%+,#;-."?"E=
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Sinh viên thực hiện :

-45S;

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MỤC LỤC
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0hi2ijk:l8mg111gggggggggggggggggggg111g11c
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_1aT"E"6"6;-gggggggggggggggggg111gG
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S‰iggggggggggggggggggggggggggggg11az

d1_146V/A"!ggggggggggggggggg1az
•d1a8VRE"!ggggggggggggggggab
•d1t<B"!ggggggggggggggggg111ab
:<nlou0Š<0Ž|ipk0iy02•ggggggggggggggt_
•u1_SI"VV-"?A•ggggggggggggggggg1t_
•u1a0V-gggggggggggggggggggggg1t_
•u1t/3JO )("?A• ‘-%$+;"\)•1gt_
•u1c1eOV-"?A•ggggggggggggggg11tt
:<nloz0<iy0qyl8’:|::€o0}v<fkS‰i4h2r‚
:<ƒe<nlo|gggggggggggggggggggggg1tu
•z1_0AAO 9"D+*ggggggggggggggggggggtu
•z1a10AAO 9\)•ggggggggggggggggggg111ct
•z1t0V$ggggggggg1cz
e<ft
:<nlob0<iy0qy0}h†m2•ggggggggggggggg1G_
•b1_:O )ggggggggggggggggggggg1111G_
•b1a0AAT'Pgggggggggggggggggg1Ga
$3-45S; 2%cd_
2

•b1t0V-&gggggggggggggggggggggg1GG
•b1c0AA35ggggggggggggggggggggggd`
•b1G:Z;-A 9Dggggggggggggggggdc
•b1d0V-R"6gggggggggggggggggggg1dz
:<nlo_`0<iy0qy“e„0ggggggggggggggggz`
•_`1_qKgggggggggggggggggggggggg11z`
•_`1a:V%O )("D"Zgggggggggggggggz_
•_`1t0V-Zgggggggggggggggggggggggggzc
•_`1c0Š<‹‡<:<Ž“e„0gggggggggggggggg111bb
:<nlo__0<iy0qy:‰o2„”n{:gggggggggggggg11_`G

•__1_M$Z"?gggggggggggggggggggggg1_`G
•__1a0AA3;gggggggggggggggggg1g11_`u
•__1t0V-&gggggggggggggggggg111gg__`
•__1cqE;)/$V-35ggggggggggg111__z
•__1G:.Z;-Agggggggggggggggggggg_aG
:<nlo†ii|<oi|0|:’oS€i0}n•o11111111111111111111111111111_az
⇓_a1_1|<oi|0|:’o:–‚wr|y:|:
<x0‰4pS€i0}n•o1111111111111111111111111111111111111_az
⇓_a1a|<oi|0|:’o:–‚wr|y4„p†—<’i1111111111_ab
1.1 :<nlo†iii0Š<0Ž|qy0:„k0n•o8s8~0isk˜og11_t_
•_t1_0O )$/3!AAggggggggggggg1_t_
•_t1a0V-R"6 E35gggggggggggggggg_tt
•_t1t0V-9&- 9D'gggggggggg11g_c`
•_t1c10V- V™gggggggggggggggggg1_G`

$3-45S; 2%cd_
3


e<fi
0hi2ijk:l8m
CHƯƠNG I : ĐIỀU KIỆN TỰ NHIÊN
$3-45S; 2%cd_
4

§1.1.Vị trí địa lý
1.1.1. Đầu mối:<B29"6D\>e%‚#/e%#[
0Dš:6\>e}-)_z$?%0*/70*/8'
0-;"9"6JC
›`›`

tu_`tG__ ÷
4L"98'
C
›`›`
Ga_`zG`_`z ÷
q"9
1.1.2.Khu tưới:8-!%+V $)##H$F
R+Vbaz#9\>e%‚#/e%#[0D1
§1.2 .Đặc điểm địa hình, địa mạo
1.2.1. Đặc điểm địa hình vùng I (Xây dựng hồ chứa nước Lanh Ra).
4?V0*/\>e%O$UHF+>/H-3_``#$?V8'F+>/
HX;/=-%0*/8'C#$?VF+>/H2:;/
=-%0*/78'"A!2}+>/H/™;$;
Z-"9;-"?D-™\*/+&9B%F+V
$&z`
a
1
1.2.2. Đặc điểm địa hình vùng II (khu tưới của hồ chứa nước Lanh Ra).
q%B%2}9+)" ‘*H/E A]
$UH\" ‘"%;]-"9œab"A3:V
(/072*:ZF-"9œ__1
4%"T"E$U/EAM$UH$$U" ‘-3F
M"T"E"6
Cq%F-"9-#"9+"6%1
C<%+("6]0*/1
CST ‘ 6'? ^$" H1
4%"T"E"6%3$]F/AD$]FM/A
D"E V3%1
§1.3 Đặc điểm khí tượng ,thuỷ văn
1.3.1.Đặc điểm khí tượng:

qVD$U+&‘-$&"%FU#8•3
$&$--)zG`18A5aUžSU
$U#U '"!]_"Az#-Ÿ/$-G#d
\ZMD%*/3•.•E>#U '"!]b
"A_a#/FcUA]u` ¡z` 
)5#%D?Z$-a_`$__12%
"9;+¢*/3•%10•%\N/?Z$-a_`
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1. Nhiệt độ không khí:
$3-45S; 2%cd_
5

]^A"9 B\;T"%F* B\;-5
+O$V A"9#V"%ž1:3"9M"9
FZ$"9XZ]GCd
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:1"9 /!
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2. Độ ẩm không khí:
w--K5#F"?F%] ER$-3T+UT
V&"%/0V-8' !O%-V•
X19N$= E";3u` 10]G"Az"9NZZ\Z
\[uG +-AK)(B£O10]b"A_`"9N5$)
+!]__"Ac51
3.Nắng:
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Oa``¤#Ÿ]d"A__' ]_z`"A
a``¤1

4.Gió:
4U+&6)^A"9FUUFV-5FU
"$FU;14DF +-"9]a¤"At¤
5.Bốc hơi:
Bảng 1.1:Phân phối lượng chênh lệch bốc hơi trong năm theo bảng
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6.Lượng mưa TBNN lưu vực:
2* =-%+!]"*/#]" ‘"A
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;"-$U; -0;0*SV*/#V";<$

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+-$&
†-$ § zG`
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6
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$&2}zG`J1
7.Lượng mưa gây lũ:
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*/3•%*/3DI-;103K'
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Bảng 1.3:Thống kế một số trận mưa lớn trong vùng
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.;<V-*/•1qAK)V-_/%
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Bảng 1.4:Lượng mưa thiết kế 1 ngày lớn nhất (mm)
e `1`_ `1a _ _` :
†¥¦ dzb ccG tac _du †-§bt1cš:$§`1dcš:§a1cb
8. Lượng mưa khu tưới:
:.;<";+-%#AK)V-
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Bảng 1.5:Lượng mưa khu tưới thiết kế
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Bảng 1.6:Phân phối lượng mưa tháng khu tưới (mm)
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1.3.2 Đặc điểm thuỷ văn
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}1
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7
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-;(2})/=-%0*/78')/
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1.Các đặc trưng dòng chảy năm:
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Bảng 1.7:Phân phối dòng chảy năm thiết kế (m
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Bảng 1.8: : Các đặc trưng lũ thiết kế hồ Lanh Ra - Công thức CĐGH

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3. Dòng chảy lớn nhất trong mùa kiệt:
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Tập 1: #™#X#9\\#\#*%X"A$]# ?+/
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Holocen thượng
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Z10!(/A#9#X$V 9™#+/-)t1
2.Kiến tạo:
03 )"2;7:}#$&¶‘-"O$6ZH
7A;-9e}7H:H;-"\*DFR]
¯9"A:=9#B6•7:$-
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3. Điều kiện địa chất thuỷ văn:
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;&"6FED\™‘%!K°-1%T[-H
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4.Động đất :
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1.4.2. Đặc điểm địa chất vùng lòng hồ:
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"#(/A**/ªX¥n§G7_`¦#"9=(X1
œ)5M%(B0;$6V+&A\*/+&/A"D
2};-B\K+>/H-1w-"F"-%+/Z
2}1Z"Z;-3 eV8'$eV"?"\*D$"
!VFR¯$:=#Z;-#VB¬#%1:$F
?+/Z%#OXZt``7c``10$M%-&
Z$&\K1e!%(^W V¬F
!9XZZ%;#FE+,"AZ%$$D/!
"K*\QJZ-?"D1
$3-45S; 2%cd_

11

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$"!VHQ10!(33F ?+/%¥?+/K
a1`¦#)&$DWO"$%?**/ªX1<!H"
9F"9+%14$D/#)5;^FF)5\)/#A\>/
O"X1
œq)5 '0-$&)-)&$D°-#%#
-"Z" ?T 6 -W\F;1w,"A 6 '#!"
HJV-+VB1
œq)5D$ D\*/+&B<2}+&A\*/
+&F+VTO"X10-W/">F+*
•ZV1:O^F#A(/A&Z1
w-"F+*%[!++99+*X$UD%1
1.4.3. Đặc điểm địa chất cụm công trình đầu mối
1.Đập chính:
 4\"6%"6!$&/A"DV(/A+&$-AK(
-)-#AV,/3+;14U/A"!
Oii -%"6!1
2%_:;6\#\*#;™T# V¬#
* ^W
2%aZV™\*$;#;6#;T$]#
FO#>-%1 VR1e* "?3;$?

2%tZ™±\*$;#;6#;T$]1
 VR1e* )3;$?
2%cZ™±C\*#*"X#$;#;+¬-?C
+¬-BT$]1 V1e* )3;$?
2%G:;6C,+59X\#\*#$;#;
™T# V¬

2%d}V---"Z™CT#WFV+5I
;T$]CT1"Z\\#$;1e* (/A^$)"D1
V
2%u<ª+5;#9)#"Z™*"X#9)
c` Cd` #V%t`Cd`#F;10;"*/T9)5FV%
%_1`Ca1`1V¥+•¦1e* ^$$"DV
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2.Đập Phụ:
 0=--)-$V-W">\"6"6
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Lớp 8:-V--;#\\#B¬O"1:=B
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* Đánh giá điều kiện địa chất công trình tuyến đập phụ I
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3.Tuyến tràn xã lũ:
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 Lớp 7 :<ª+5;#9)#"Z™*"X#9)
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Lớp 9:0!V AZ\\#O#VB¬1
* Đánh giá điều kiện địa chất công trình
0/A" V$(/A"DV1"O/3
"6Z+./A31 F X!(2%u1:-"/P
+&A"T--3"--±#"%"F)56&1
$3-45S; 2%cd_
14

<ZX#") )-"9R"610/$D/#-K#"E";
"-"TFFE+U R"E"-F1•
/-5"9B¬("14$D/#!F J#;A
B¬("1
4.Các tuyến cống lấy nước:
:Z/%" V$6V#_ V$6V$)"DI_#
a V$)"DVOi
œ:Z/%_
6!/A%
 2%z-V--;#\\#B¬O"1:=BZ

™ ^™1ª----1
 2%b-V\\#O#VB¬1
w./A%31:-"/+&A"T--
3?"--;#B¬O"¥2%z¦10=-V"6Z
$512%/FZ%"O$6%1$D/!F 
U;A5"9B¬$!J\=\™A-I
"E5)5ZA!A1
+ Cống lấy nước số 2
6!+./A%
C2%aZV™\*$;#;6#;T$]#
 VR1F"9*]`"Aa1G1
2%d!V AZ---"Z™CT#W
FV+5I;T$]CT1"Z\\#$;1F"9*]a1G
"AG1G
2%z%-F;("!V AZ#"ª"Z#"B
¬;$P+5IX1q=B"Z™"!/"Z™#;B'1
8V+.=-*$"D)16!"Z"+./AF!(%a
!" F X1:-"/F3"T--3?"--
--¥2%z¦12%/F)56&•Z1

§1.5 Vật liệu xây dựng:
1.5.1. Đất đắp đập:
$3-45S; 2%cd_
15

1.Vị trí các mỏ vật liệu đất đắp đập:
:5B$-AK))-"6Z#:X$D"E"'"D2
 -
1:X$D‘-W8-X$D‚#8#Y$‚Y^
9$6V"D`1G"Aa

1:X$D‘-W
CSX$Dw¥"Z™¦‘^;"DI-%3V_#$6
V"D-)a#G
CSX$D:^;"DI#$6V"DI-)_#G1
CSX$Do^<;"D:V#$6V"DV-)u``1
2.Diện tích và trữ lượng:
Bảng 1.12:Thống kê trữ lượng các mỏ vật liệu đất
00 03 >42
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t 8>428 _u#`` `#G` _#`` zG1```#`` _u`1```#``
c 8>42Y aG#`` `#G` _#a` _aG1```#`` t``1```#``
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3.Chỉ tiêu cơ lý của đất :
Bảng 1.13:Chỉ tiêu cơ lý của đất đắp từ các mỏ
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4.Đánh giá vật liệu đất đắp đập:
$3-45S; 2%cd_
16

C0M"Z"'"D-H#"B"(/3!$?"Z"'
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C:&/$D/E"Z"'"D-;$]_"At1
C:Z"Z"'4?VZ#O^#>""?^X3
! V$D"Z$-]$6V-*"D-J"E )-")"?¹
-$A1
CZXw"Z™""?6+U$DZ-*"D1
1.5.2. Vật liệu cát, đá.
1. Cát:FE-W2}^$;/A
"D#Z )-")-\*/"H$!.10M-)c``1```
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1:X"‘^$&V0*//A"D¥"!"D)¦"F
\'#%10!e-#;#´=$9V -#

=+-gZ9-;"QB#FE"9#"+5#M
-)a™1
1:XHV*/$&#/A"DV¥i ¦_#G1F
\'#""=# ?T-F'10!-$D
0;#e-#´=# --=# -$9V-$DI=+-#
19-;B#FE+U"¬#M-)`#G7_#`
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CHƯƠNG II: TÌNH HÌNH DÂN SINH KINH TẾ
$3-45S; 2%cd_
17

§2.1. Điều kiện đân sinh kinh tế
2.1.1.Tình hình dân cư:
0R+V"? U)FT ‘aud#cG1<ª.$++;-
Wt`91
2.1.2.Tình hình đất đai:
0=-AK)V-#O%J"\"6$%+V%
_`G`#
8$IœHU t_Gš
8$Iœ0$IU t_Gš
0$Iœ$I ca`š
Bảng 2.1:Cơ cấu cây trồng khu tưới hồ Lanh Ra
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0 _ a t c G d u z b _` __ _a 5
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C:-"9T9
03-%:-"9/"R]aa#`"Aab#`
CHƯƠNG III : PHƯƠNG HƯỚNG PHÁT TRIỂN KINH TẾ VÀ
NHIỆM VỤ CÔNG TRÌNH
§3.1.Phương hướng phát triển kinh tế
$3-45S; 2%cd_
18
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0-A-;"!E([2
9-M"!."E1
†*/+&<B%2}I$I%&)/-_`G`"Z
$Z%;--a``;1

§3.2.Giải pháp thuỷ lợi
03OO)\Z$;#O%K/
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+*-$U#A$%"?&3">*V1o)
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

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19
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PHẦN II
THIẾT KẾ CƠ SỞ VÀ LỰA CHỌN PHƯƠNG ÁN
CHƯƠNG 4 : CẤP CÔNG TRÌNH VÀ CÁC CHỈ TIÊU THIẾT KẾ
§4.1 Cấp công trình
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20
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)a1au0:†w4azGCa``aFZiii
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§4.2 Các chỉ tiêu thiết kế chính
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§4.3 Các tiêu chuẩn sử dụng trong thiết kế:
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CHƯƠNG 5:XÁC ĐỊNH CÁC MỰC NƯỚC ĐẶC TRƯNG
§5.1 Xác định mực nước chết

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21
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5.1.1.Mục đích và ý nghĩa:
1.Dung tích chết:
2!+%U(-%#!$-K"?A+W
)/(1
$I(+VAMA U"A--%-
$(#*-"!%--•?*V
-%#") )-9%E"E"#$") )-+V
I$I#-#$D)1
2.Mực nước chết:
S&%A¥S:¦-%;3(+VA#&%
E") )-$,-;"9 1
5.1.2.Nguyên tắc xác định mực nước chết,dung tích chết:
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/"%Z#-T") )-9%E-$"-
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´1) )--;#)^"A+6-$&
0-;$"/\"6=-"?$
5.1.3. Các tài liệu cơ bản:
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5.1.4.Cách xác định MNC, dung tích chết:

1.Xác định theo điều kiện a:
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5.2.1.Mục đích và ý nghĩa:
1.Dung tích hiệu dụng:
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2.Mực nước dâng bình thường:
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5.2.3.Các tài liệu cơ bản
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%W;-)\)\;1FV%\)]1
5.2.5.Các bước tính toán
0&Z$V-V"H+!18"! AKV%(
BK"-;#)QRZ(B+-Z#+- O
F‘"O)$V-#""KV%(

1"F#+U"K"FV-FE"ARZ=-B
"> /31:U"+V+I(BK!V
-"H+!#Z/"KV%(!V%"EV--!V
A=-1
a.Xác định dung tích hồ khi chưa kể đến tổn thất
$3-45S; 2%cd_
25