UNIVERSIDAD NACIONAL AGRARIA DE LA SELVA SELVA FACULTA FACULTAD D DE RECURSOS NATURALES NATURALES RENOVABLES DEPARTAMENTO ACADÉMICO DE CIENCIAS DE CONSERVACIÓN DE SUELOS Y AGUA
Informe de Prác!c" TEMA: “DETERMINACION DEL COEFICIENTE DE RUGOSIDAD COMPUESTA”
C U R SO
# HIDRAULICA Y ESTRUCTURA FLUVIAL
ALUMNA
# BARRIENTOS CAJA, Cristhi! L"is
DOCENTE
# I!#$ BUSTAMANTE SCAGLIONI, Er%& Ott' J(i&r
SEMESTRE
# )*+ - I Ti!#' Mr. - P&r/ )*+
I$
INTRODUCCION
E% "s' 0& %'s r&1"rs's hi0r2"%i1's h 3"#0' "! 44&% 4r&4'!0&r!t& &! &% 0&srr'%%' 0& %s s'1i&00&s5 t! &s s., 6"& %s #r!0&s 1i(i%i71i'!&s h! 8%'r&1i0' %s 'ri%%s 0& %'s #r!0&s r.'s$ E! % I!#&!i&r. 9'0&r!, %'s 4r'&1t's 4r 1";rir %s 0&9!0s 0& #", r&6"i&r&! 0& &st"0i's hi0r'%<#i1's & hi0r2"%i1's, 0'!0& % 0&t&r9i!1i4&!0i&!t&?$ D& &s& 9'0', &% 4r29&tr' 6"& /! 0&;& s&r &sti90' &s &% 1'&8i1i&!t& 0& r"#'si00 @ !@, &s &% 92s 0i8.1i% 0& &st;%&1&r$
%$%$ O&'e!(o)
C%1"%r &% 1'&8i1i&!t& 0& r"#'si00 >si94%& 1'94"&st? 0&% 1!% 0& %;'rt'ri' &! 10 tr9', tr(=s 0& % &1"1i
M!!i!#$ D&t&r9i!r &% 1"0% 1'!si0&r!0' &% 1'&8i1i&!t& 0& r"#'si00 si94%&
1'94"&st$ D&t&r9i!r &% tir!t& 4'r tr9' s&#/! &% 1'&8i1i&!t& 1'rr&s4'!0i&!t&$ C'94rr %'s #st's 8'r0's 1'! %'s 1%1"%0's, %'s 1'&8i1i&!t&s 9&0i0's %'s 1'94"&st's, &% tir!t& 9&0i0' 1'! &% 1%1"%0'$
II$
II$%$
REVISION DE LITERATURA
E)c*rr!m!eno +erm"nene *n!forme Pr &st 1'!0i1i
II$,$
Cá-c*-o de- f-*'o *n!forme P"&0& 4%!t&rs& %'s 4r';%&9s 0& 8%"3' "!i8'r9& si#"i&!t&s:
II$,$%$ Cá-c*-o de- !r"ne norm"-. Yn A0&92s 0& , ! S, s'! 0t's &% !1h' ;, &% t%"0 >4r % s&11i4r &% 1s' 0& "! 1'!0"1t' 1ir1"%r ' 0& h&rr0"r?$ D& % &1"1i
Q ∗n S
D'!0&
II$,
/
1 2
2
= A∗ R
Q∗n / S
3
1/ 2
… … (1 )
&s 1'!'1i0'$
M/odo n*m/r!co 0!er"c!one)1$
Pr 10 (%'r 0&% tir!t& !'r9% Y! s& 1%1"% 1'! !, si
AR
2/ 3
AR
2/ 3
s& 1'94r
&s 9'r 6"& ! 0&;& 0is9i!"ir$
II$,$,$ P"r" e- c")o 2*e )e en3" -" cond!c!4n de 2*e e- !r"ne norm"- )e" !3*"- "- cr5!co. +"r" c"-c*-"r e)e 6-!mo )e +rocede de -" m"ner" )!3*!ene# C'!'1i0' , s& ti&!& 6"& stis81&r % r&%1i
II$,$,$%$
M/odo n*m/r!co 0!er"c!one)1
Prr 10 (%'r 0& Y1 s& 1%1"% 2
6"&
K c ,
A / B
K c , 0&;&
2
3
Q /g
&s 1'!'1i0'5 si
2
3
A / T s& 1'94r 1'!
&s 9'r 6"&
0is9i!"ir Y1 (i1&(&rs$
II$,$7$ C"-c*-o de -" +end!ene S'! 1'!0"1t's , !, Y, &% !1h' ;, &% t%"0 s& ti&!&: 2 Q∗n S= … … ( 3) 2/ 3 A∗ R
(
)
Si &% t=r9i!' AR
/
2 3
s& 1%1"% 1'! &% tir!t& !'r9% Y!, % 4&!0i&!t& S
1'rr&s4'!0& % 4&!0i&!t& !'r9% ' "!i8'r9& S!5 si s& 1%1"% 1'! &% tir!t& 1r.ti1' Y1, 1'rr&s4'!0& % 4&!0i&!t& 1r.ti1 S1, si s& 1%1"% 1'! 1"%6"i&r 'tr' tir!t& Y, 1'rr&s4'!0& % 4&!0i&!t& 0& 8ri11i
II$,$8$ Cá-c*-o de- 3")o C'!'1i0's S, !, &% tir!t& Y, &% !1h' ;, &% t%"0 , &% 12%1"%' 0&% #st' &s 0ir&1t' 1'! % &1"1i
II$,$9$ Cá-c*-o de -" n de M"nn!n3 Est& 4r';%&9 &s 0& i!t&r=s 4r21ti1' 1"!0' s& ti&!& 9&0i1i'!&s 0& tir!t&s (&%'1i00&s$ D& s&r 4'si;%& s& 0&;& 9&0ir tir!t&s (&%'1i00&s &! 0's s&11i'!&s &% 0&s!i(&% &!tr& &%%'s 1'! ;st!t& 4r&1isi
K ¿ =[ AR
2 /3
] …. (5) I
D& % &1"1i
II$,$:$ Secc!one) com+*e)")
E! '1si'!&s, % s&11i
m
Q=V ∗ A =
∑ = i
1
2 /3
A i∗ Ri V i∗ Ai =S ∗ ni i=1 2
m
∑
L (&%'1i00 9&0i &! t'0 % s&11i
1
A
/
1 2
∗S
∑ = i
/
2 3
m
A i∗ Ri ni
1
Eist&! tr&s 1rit&ri's 6"& s& "ti%i7! 4r 1%1"%r &% (%'r 0& !, %%90 &6"i(%&!t&, &! 1!%&s 0& s&11i
II$,$:$%$
;oron
n
[
=
]
/
2 3
m
( P ∗n ∑ = i
i
V 1=V 2= …V m
1
P
1.5 i
)
E! 1!%&s 1'! s&11i'!&s tr4&7'i0%&s s& 4"&0& r&s'%(&r % si#"i&!t& &1"1i
(= )
Yni+1
nQ √ So
0.6
III$
∗( b + 2 Yni √ 1 + m
2
)
0.4
b + mY ni
MATERIALES Y METODOS
III$%$ L*3"r de e'ec*c!4n L 4r21ti1 “D&t&r9i!1i
III$,$ M"er!"-e) = m/odo)
*+ C!% 0& %;'rt'ri' 0& 4&!0i&!t& (ri;%&$ *+ i!1h$ *+ Vs' 0& 4r&1i4it1i0=1i9 0& s&#"!0'?$ *+ Ni(&% 0& 1r4i!t&r'$ * # 0& 4i&0rs 0& 19 0& 0i29&tr'$
III$7$ Meodo-o35" S&#/! &% 1"0r' 03"!t', %'s 4r'1&0i9i&!t's 4'r r"#'si00 0&% 1!%, s'! 4'r 10 9t&ri%, +K (i0ri', )K #r(s 1'9' si#"&: Pr &% 1!% 1'! r&(&sti9i&!t' si94%& >(i0ri'?: +$ D&t&r9i!r &% 0&s!i(&% 0&% 1!% 1%1"%r % 4&!0i&!t& &! "! %'!#it"0 0& )9$ )$ C%1"%r &% #r0i&!t& &! 10 "!' 0& %'s tr9's, +, ), , , $ Est& r&s4&1t' % %'!#it"0 1"9"%0 8i!% &! =%$ $ E!1&!0&r % ;'9; &s4&rr * s&#"!0's hst 6"& s& &st;i%i1& &% 8%"3' 4'r &% 1!%$ $ A8'rr &% !/9&r' 0& &!s's !&1&sri's 4r &st& r&(&sti9i&!t' >(i0ri'?$ $ M&0ir % 4r'8"!0i00 0&% #" Y! >9? 0&92s &%&9&!t's #&'9=tri1's 0&% 1!% &! 10 "!' 0& %'s tr9's >+, ), , ?$ $ C%1"%r %s 4r'4i&00&s #&'9=tri1s 1'rr&s4'!0i&!t&s$ $ D&t&r9i!r &% 1'&8i1i&!t& 0& r"#'si00 1'! 0i1hs 1r1t&r.sti1s &% #st' 0&% 8'r' r&s4&1ti('$ $ Asi#!r %'s !"&('s 1'&8i1i&!t&s 0& r"#'si00 !+, !) ! &! 10 "! 0& %s s&11i'!&s 0& %'s tr9's +, ), , $ $ D&t&r9i!r “!” 1'94"&st' 4'r 10 s&11i
IV$ V$ VI.
RESULTADOS CONCLUSION DISCUSION
