sd'dinh mrtg.;dgtfli6n xdy dung cAu treo ddn sinh do Vienchi6n lu-o... oirr, mric_x6y dung cau treo d6n sinh c6ng bo tai euytit... Nf,i dung itlnh micc dq tudn - Mrbc hao Phi' vdt liQu:
Trang 1I
Be GrAo rn0Nc vdN rar
on AN xAv Dt111c CAU TRES nAN SINH DAM nAo ATGT
rnfiN rHAM VI28 tixn nmrN NUI pnia nAC, vlnN TRUNG
(Kim theo Quy6t apn s5 l0$LvQn-BGTvT nsi,y 14 tnans.S' nlm 201s)
Hd Nli,2015
Trang 2BQ GIAO THONG VAN TAI cgNG HoA xA Hgr cn0 Ncnia vrpr NAM
mi6n nrii phia Bic, midn Trung oa fay Nguy6n ^
Cdn cf Nghi dlnh s6 107l2O12lND-CP.ngdy 2)ll2l2ll2 cfia Chinh phu quydinh chfc rfog, nhiQm vr,r, quydn han vi ccv c6u16 chirc cria 86 GTVT;
Cin cri Ngli dinh s6 L2|200T/NE-CP ngey nrc2A0\9 cira Chinh phu v6quan ly du 6n iI6u ru xdy dryg c6ng t *], u4 Ndt i dinh s6 38/20094tE-ciingav
l5ll0/2009 ctl,- Chinh phri v6 viQc sta aOi UO sung mQt sO Aieu cua Nghi Ainf,"s612/2009A{E-CP;
Cdn ct Nghi dinh sO 15/20134ID-CP ngdy 0610212013 cria Chinh phu vAquan I! chdtluqng cdng trinh xdy dlmg;
Cln cri Ngtri dinh s6 ll2i2}Og/NE-CP ngdy 141t212009 ctra Chinh phri v6
quin ly chi phf ilAu tu xdy dWrg c6ng trinh;
pne uuyer va cong Do mot so dmh muc
D0 6n xdy dgng cAu ffeo ddn sinh d6mbio an todn giao thongj,tB*,pn?m'yi.*S\94, mi6n nrii phia.Blc, midn Trung vi r6y
Nguydn; Kdm theo Hd'"iiiqhinh.itOLnr66n xdy dune ci
C[n cri rh6ng tu sd o4l2}lolTT-B.xD ngdy 26l5l2ot0 cria BQ X6y dung
huong ddn lap vd quan ly chi phi chi phi dAu tr, *uv dwg c6ng trinh;
Cdn cri Th6ng tu s6 ll/2}l4lTT-BGTVT ngey 291412014 cria Bd GTVT v6
vi6c hunng d6n c6ng t6c thi6t k6, thi c6ng vd nghiOm thu cAu treo d6n sinh;
c6n cri Quytit dinh s6 1906/QD-BGTVT ngey 20/512014 cua 86 GTVT v6viQc ph6 duyQt dA F xdy dpg cAu treo d6n sinh clirm b6o an todn giao th6ng tr6npham vi28 tinh miAn nrii phfa Bic, midn Trung vd T6y Nguy€n;
Cin ct Th6ng b6o si5 2|61TB-BGTVT ngey l7l3l2}t5 cua B9 GTVT v6 vi6cki6m di6m ti6n tIQlhlrc hiQn pC an xgV dUqe f S6 .e, treo ddn sinh ddm bao ATGT
cho 28 tinh mi6n nrii trung du phia Bat, miAn Trung vd r6y Nguy6n
, xdt Quytit ainn so zosatqD-TCEBVN ngdy igttttzot+-ciaT6ng cuc DBVN
vC viQc.ph6 duyQt d6 cucrng
"triqT vp vi dg to6n g6ng t6c l6p dinh muc dp to6n x6ydUng cdu treo ddn sinh thuQc pC 6n x0y dpg cAu tieo d6n sinh dim bio an todngiao thdng trcn ph4m vi 28 tinh mi6n nrii phia Bic, midn Trung vd r6y Nguy6n;xet cic Td trinh s6 nfiTr-TCDBVN ngay $B/zots, Td trinh ; 'fifftr-
fgEBVN ngey rc,3,2015 vg.SSginh sd 281TTr-TCDB\rN ngey 26t3/2015 cria
T6ng cpc Ducrns Bq r ong cuc f)uong BQ vietpg#iffixin Vietlldnfvl ph6 duypt G c6;s bt;ot;5 ;trh #;
du to6n xdy dpg cdu t{n il6n si
bio an todn giao th6ng hln:pham
Nguyen; Kdm *reo frd [&t&irn ,
Ngyy6n; Kdm theo HQ sd'dinh mrtg.;dgtfli6n xdy dung cAu treo ddn sinh do Vienchi6n lu-o c vd ph6t trii5npfVr lap,thirb g'tzOts;
_ Theg de nghi:tr6$dt *o4s cpe eu6n ty xdy dung & chdttusng crGT tpi
b6o c6o thdm dinh sd 350 73qn6Obl ngay 'So titzoti,
Trang l/2
Trang 3(Danh mr;c vir chi ti6t dfnh mfrc c6 phq luc kdm theo)
tlon vi lion quan rd so6t, hodn rt int, h6 so airr, *,ii * ; H ,e, ,r* quan theo
86o c6o tham dinh s6 bs| /CeLXD-DBI 'ngay Tr.'tiiffoi?
"u'J.oc eLXD vd
CLCTGT
Di6u 3 Tritin khai thuc hi6n:
3.1 Trdn
lorr6 !i oirr, mric_x6y dung cau treo d6n sinh c6ng bo tai euytit
<lfnh ndy vd h0 th6ng dfnh mric do p9 l?i.oy^g u* #;'i##tuons bO viet
Nam, Ban kiQn dia QLDA 3 chi dpo Tu vAn thici te vi c6c don vi h6n qrrun c5n cf di6u
1i*,, dit:16,, thuy vdn vd biQn ph6p thi c6ng thu; ;3-il,i,"g c6ng trinhcdu, ddi chieu v6i hO so thuy6t minh dr.nh^mric diS *.-"*Ji'qfi;;il viQc 6p dung,
vfln dgng c6c dffi mric cho pht hgp v6i thgc tc tt i
"gng, ia^ ii, itnh dring, tinh
9L*i.pr,ixitv gu"q: Tan thri qrv 8inr, hiOn hdnh T6ng cpc Eudng bQ viQt Nam(cht ilAu tu) thal dinh, phc duy6t hb so or.t"a, .ac c6ng trinh
cAu cl6m bio hi6u
qui tlAu tu vd chiu tiach nrriem tru6c 86 truong 86 crvT vd ph6p ffi;ilrr-,
3.3 Trong quri trinh tri6n khai, T6ng.cpc Eudng boviet Nam, Ban eLDA 3
chi dpo Tu v6n vd c6c clcrn vi li6n quan tiAp'tu Jro"aiOai
"frf3, i$lrc;;;;
ifnh mric (hao phf vat heu, nhan ,-6.19, *ay ini.c6ng, biQn ph6p thi c6ng, ) v6i
T1ong trugrghsp c6 sai kh6c l6n so r^"_r$r bing chung.,il d;-;il",hr6; r;ffi;
Tte:o' P."*e bo viet Nam, B1n Q]-DA 3 ki; rr,Ji?ia, h,"h?rh mric (n6ucdn) ddm b6o tinh dring, tinh dt chi phf xey dpig,-B;';"-iiO'bT"T xem x6t,
quy6t dinh r^^^ '^*r ss,6'
Ki5.hopch dau tu, *:{ nq" ;"g.nghe,-rai ciinrr; T6ng cuc trucrng T6ng cuc
Noi nhQn:
- Nhu ili6u 4;
- BQ truong (Ati Utc);
-
Yign chiiSn lusc vA ph6t tri6n GTVT;
- C6c tlon vi li6n quan
(Ban QLDA3 sao giri);
- Luu VT, CQI,I(D (05b).
IW
T.BQ TRIIOT\{G
Fry6n H6ng
Trang 4THUYfT MrM{ vA HUONG DAI\ Ar nlxc
E[-NH Vruc pu roAN xAv DI-ING CAU TREO DAN SINH
thanh mot don ,Ga, lrrgng c6ng tic vQnchuy6n, sin xu6t ket cAu th6p' xay
dwe vn lip t16t tai hiOn trucvns v'v"' tt kh?; cluilbl u?"
S.tl kot thirc
ffi ;;;^, iao ira c6 nhirng hao phi do y6u cau k! thu.t vi t6 chirc s6nxuAt nhim dlm b6o thi c6ng xdy durrg li6n tpc' dung quy trinh' quY pham kI
thu00
Dinh mric dg to6n dugc laP tr6n co so c6c quy chuAn, ti6u chu6n xay
dUrrg; quy phpm Ly ,fr"a,
"d .fri6, t6 - ttri cdng - ng6iqm thu; mric co gi6i
h6a chung trong ngdnh x6y dlmg; trang thiet bi ky thuft, biQn ph6p thi c6ng
vd nhthrg tie, UOff"" nn" qf ,r;"a, t orrg x6y dpg (c6c vflt tu m6i, tniet Uivir c6ng nghe thi cOng ti6n ti6n v'v"')'
1 Nf,i dung itlnh micc dq tudn
- Mrbc hao Phi' vdt liQu:
Ln sd lugng vat lieu chinh, vflt liQu phg' c6c phq kiQn hofc fc !O
ph4n rdi 16 (kho;; ke vit'h-eu php cAn dung cho m6y m6c, phucrng tipn v4n
ifr"Va" ra rrirCr,rg v4t liQu tinh trong chi phi chung) cAn cho.vigc thUc hiQn vi
hodn thanh mQt don vi kh6i luqng con gtitcsan xuiit, x6y l8p, vQn chuyen vd
khai th5c
g dinh mric niy dd bao g6m hao hut vflt liQu
0 khdu thi c6ng
- Mthc hao Phi lao dQng:
ra a ,ge; c6ng tuo a6rrg ctra c6ng nh6n tr.uc ti6p thu: hiqn kh6i
Trang 5Tap dinh mirc d1r to6n dugg trinh piy theo nh6m, lo?i c6ng t6c ho{c
ket cau -1, f6p vi dugc md h6a th6ng nh6t theo g6m 04 chu<mg'
Chucnrg I: COng tdc vQnchuy6n vd khai th6c vat 1i9u
Chu<mg II: COng t5c sin xuat k6t c6u th6pChuong III: COng tkc llp d{t tai hiQn truirng
Chuong IV: C6ng t5c xdy dpg tai hiQn trudrng
- u5i loai dinh mrlc dugc trinh bdy t6m tat ttrantr phan c6ng viQc, diau
kien k9 thudt, di6u kiQn thi c6ng, biQn ph6p thi c6ng vi dugc x6c dfnh theo
tlon vi tinh phir frqrp aC thgc hiin
"Ong t6c sin xu6t, xdy lip, vQn chuy+3n vi
- Cdc thdnh phdn hao ph{, trong Dinh mdcc &,t todn duqc xdc dinh theonguyAn tilc sau:
+ Mirc hao phi vft liQu chinh dugc tinh beng s6 lugng phir hqrp v6i
don v[ tinh cira v$t liQu;
+ Mirc hao phi vQt liQu ktrSc dugc tinh bdng ty le % 1jnh tr6n chi phi
vOt liQu;
+ Mric hao phi lao <tQng chffi vlr lao dong php dugc tiifi bing s6
ngay
"Org theo c6p b6c binh
q"a" cria c6ng nhan tr.uc tiiSp x6y lnp;
+ Mirc hao phi m6y thi c6ng chinh dugc tinh beng so luqng ca m6y sridung;
+ Mfc hao ph( m6y thi c6ng ktr6c dugc tinh bing ty le o/o trdn chi phi
sri dgng m6y chinh
3 Hwdng ddn dp dltng
- Einh mtc dg toSn dugc 6p d\mg ae lap dcmgi6 x6y dpg c6ng t1inh,
xay dpg c6ng trinh vd quin $ chi phi dAu tu xdy dUng c6ng trinh
- Ngoii thuyiSt minh vd hucmg ddn 5p dUng n6u tr6n, trong m5i
chucrng cria t$p Dinh mire dp toSn cdn c5 phdn thuytit minh vd hu6rng ddn qr
- Mtbc hao Phi mdY thi cdng:
r a
^ - - - riiSt ti thi c6ng chinh tr.uc ti6p thuc hiqn kC
"u*u|"";Hffi ,iT,i#il['ia;;;;inu*"*6;;,ikha,ruqnsc6ng
t6c sin xu6t, xdy ldp,vQn chuy6n vd kirai th6c'
2 fdt ciiu tQp illnh mitc dg todn
UY,'f
Trang 6klrai thac ;;;;4" ry ,t"at aiau ki9n thi c6ng ktr6c "1.1"v dinh m,,s
I A,
ouY9r ' J.
3
Trang 7CHUOT {G I
Thdnh phin cdng viQcChu6n bi, ki6m tra, xirc dd, b6c xi5p, chiing buQc, m6c vi thSo c6p, x5p bing,
dgp chuong ng4i vft
Ecrn vi tinh: 1t6nftm
CU ly vfln chuY0nThanh phAn hao Phi
Vfu chuy6n t<6t c6u
thdp, ddy c6p b[ng
tht c6ng k6t hqp cogioi M6y k6o 110 CV
WV
Trang 8I CT.10200 Khai th6c s6i sudi t4i chd biing thfi c6ng
Thdnh phdn c6ng viQc
Chuan bi, diro samg s6i su6i, vfn chuy6n tfp k6t vat HQu trong pham vi 30m
Thdnh phin cilng viQc
Don vi tinh: 1m3
Eon vi tinh: 1m3
Ma hiQu C6ng t6c Thanh phAn hao Phi Don vi
Di6u kiQn khai th6c
Di6u kiQn khai th6c
ThanhphAn hao PhiCOng t6c
Ma hiQu
0,351
Nhdn cdng (bQc 2,5/7)Khai th6c s6i
su6i bing thri
c6ng k6t hqp
co gi6icr.103
Trang 9ChuAn b!, lAy dAu, cit, t6y, khoan, doa 15, hen sin xu5t c6u kiQn theo dirng y6u
cAu kf thuQt, *i!p g9r, thenh phAm, vQn chuy6n trong pham vi 30m
Trang 10Chi€u cao c6ng trq th6pH<6m 6m<H<12m H> lZm
cT.20t
San xudtc6ng trpthap F
th6p tdm
tO hqp
Vdt li€uThdp hinh kg 100,45 61,50 104,55
Mdy han t.u tlQng ca 2,201 7,446 0,895
M6y nan dAm ca 0,229 0,087 0,038
Trang 11CT.20200 Sf,n xu6t dlm dgc
Bao gdim ddm dgc, li6n kiSt vdi dAm ngang
Thdnh phdn cdng vi€c:
Chu6n bi, l6y d6u, clt, t6y, khoan, doa l5 s6n xu6t c6u kiQn theo ilirng yOu c0u
k! thuft, *tip ggt thenh phAm, vfln chuy6n trong pham vi 30m
Thenh phin hao phi
San xu6t dim
Trang 12CT.20300 Sfln xu6t dAm ngang
Bao gdm dAm ngang; he bin 1i6n k6t vOi giing gi6, dAm dqc, thanh ren, bin
m{t c6u
Thdnh phdn c6ng vi€c:
ChuAn bi, l6y ddg, cht,tAy, ktroan, doa 15, sin xu6t c6u kiQn theo tffing yeu
cAu kf thu$t, *6p g9" thanh phAm, vfn chuy6n trong pham vi 30m
Trang 13Bao gilm giing ch6o, ban 1i0n ki5t gieng ch6oThdnh phin cilng viQc:
ChuAn bi, lAv d6u, clt, tAy, khoan, doa 15, s6n xrr6t c6., kiQn theo dung y6u cAu
Trang 14Thdnh phin cdng viQc:
ChuAn bi, l6y dAu, cit, tAy, khoan, doa 15, han sin xu6t c6u kiQn theo dring yOu
cAu kf thu6t, xiSp ggn thanh phA*, vfn chuy6n trong pham vi 30m
11
Trang 15CT.20600 Sin xuAt g5i
"au
Thdnh phdn c6ng viQc:
ChuAn b!, 6y ddu, cht,t6y, khoan, doa 15, han sin xu6t c6u kiQn theo dring y6u
cau kf thuft' x6p gqn thdnh ph6m' vfn chuy6n trong pham vi 30m'
M6y cit u6n thdp 5kw ca 0,02 0,03
Trang 16CT.20700 Sin xu6t lan can
lan can t<tit c6u mAm b[ng t6 hqp th6p hinh, th6p trdn
Thdnh phdn c6ng viQc: '
ChuAn bi, l6y ddu, c1t,tAy, khoan, doa 15, han sAn xu6t c6u kiQn theo dirng y6u
cAu ky thu6t, *i5p ggt thenh phAm, vQn chuy6n trong pham vi 30m
cAu treo
dhn sinh
Vdt li€uTh6p hinh kg 10,855 5,222
Trang 17CT.20800 Sfrn xu6t hQ thanh neo
HQ thanh n"o
"Au treo ddn sinh bao g6m 3 lo4i: neo c6p chir (ch6n trong mO
neo); neo ch6ng lQt (ch6n trong mO cAu); neo chSngl|c ngang (ch6n trong try neo
Trang 18ch5ng lic
ngangcT.208
Trang 20CT.20900 Sin xu6t thanh ren vir bO d6i hufng
Thdnh phdn cdng viQc:
ChuAn bi,l|y ddu, clt,tAy, khoan, doal5, hen sin xu6t c6u kiQn theo dring y6u
cAu kfthu$t, x6p ggn thanh phAm, vfn chuy6n trong phem vi 30m'
Dcm vi tinh: bQ
Md hiOu C0ng t6c Thenh phan hao phi Don vi ffr5i lugng
cT.209 San xu6t thanh ren
t0
Trang 21CT.21000 Sfrn xu6t bQ kgp cip
B0 kpp c6p cAu treo d6n sinh bao gdm Zloai kep c6p d6i vd k-ep ciry 3
Thdnh phdn chng viQc:
Chudn bi, l6y d[u, cgt, tAy, khoan, tiQn, doa l5 san xu6t c6u kiQn theo dring
yeu cAu kI thu4t, x6p ggn thanh phAm, vfn chuy6n trong pham vi 30m
Trang 22CT.2t 100 Sin xu6t thanh treo
Thdnh phdn c6ng viQc:
ChuAn bi, l5y ddu, cilt,tAy, khoan, doa 16, hen sin xu6t c6u kiQn theo dirng y6u
cAu klthuft, x6p gqn thenh phAm, vfn chuy6n trong pham vi 30m'
Trang 23CT.21200 Sfrn xu6t puly
HQ puly cAu treo ddn sinh bao gdm 2loqi:puly c6p ddi vi puly c6p 3
Thdnh phin cdng viQc:
ChuAn b!, 16y ddu, cht, t6y, khoan, tiQn, doa 15, hdn sin x,r6t c6u kiQn theo
dring y6u cAu k! thuQt, xi5p gqn thanh phAm, vQn chuy6n trong pham vi 30m
Vqt li€uTh6p tdm ke 582,417 373,144Th6p t6m kg 534,381 773,554Thdp trdn co khf D160 kg 123,086 72,076Bac ildng D140x90x10 cal 4,126 3,550
Trang 24CT.21300 Sin xu6t bul6ng neo chfln trg th6p
Thdnh phdn cdng viQc:
Chu6n bf 6y ddu, cht, tAy, khoan, tiQn, doa 15, hdn sin
"u6t "6t' kiQn theo
dring y6u cau ky tiru6t, xisp gqn thenh pham, v$n chuy6n trong pham vi 30m
Trang 25CT.LL4AA Lip dgng thfr sfrn phAm
try
th6p
Vil liduCon l6i, bu l6ng thi c6ng cal 2,159 1,548 1,029
dam
m{t cdu
Vdt li€uCon l6i, bu l6ng thi c6ng cal I 10,67
Trang 26CHTIOFIG III
cONc rAc r,AP DU1YG rrir c^q.u rnnr
Thuy€t minh vd hudn ddn dP d'ung
{ift
mric cta c6ng teclepdpg kiit c6u th6p dugc tinh binh qudn tr6n co s0 ban v6 thi6t
phii c6n cri vio ban vE thi6t ki! dugc thfim dinh vn ph6 duyQt
c6c dinh mirc lap durrg c6ng tru th6p bet g tht c6ng; R6i vi c6ng c6p
!c6p-"tri, "ip d6diil "u*u, "ip rrrS"eiaO t"u buo 96* c6ng t?" *ev dtmg rro trre
1rre,r.O t or,g fiq, phap ia
"Uri'" thi c6ng) d6 phuc vp c6ng tfuclfip dUng
C6c ilinh mirc Rii vd cdng c5p (c5p chri, c6p ch5ng 16c ngang, c1p ch6ng lflt)
d5 bao gdm cdng t6c san xu6t, Hp dgng vd th6o dd he gi6 dd phUc vp c6ng t6c tdi
vi rii c6p
C6c dr.nh mric lEp dUng he dam m[t qAu (dAm dqc, dAm nBmB, gi[ng ch6o) dd
bao gitm cdng t6c sin xu6t, lep dlmg va th6o dd he khung treo phgc vg c6ng t5c 15p
dure
Trang 27CT.30100 Lip dgng
"619 trqr thdP
Thdnh phdn cdng vi€c:
Chu6n b!, cAu l[p, dflt cAu kiQn dung vi tri, cO ai*r c6u kiQn vi hoan chinh
theo y6u cAu kf thu4t V4n chuy6n vflt liQu, cfiu ki-6n trong pham vi 30m
Bu lOng thi c6ng vir con l6i cal 4,091 5,699 3,516
Trang 28Bu l6ng thi c6ng vd con l6i cal 4,091 5,699 3,516
Trang 29CT.30200 Lip tlat PulY
a
Thdnh phdn c6ng viQc:
ChuAn b!, cAu lhp, d{tcAu kiQn dring v[ tri,
"5 Ainf, c6u kiQn vi hoan chinh
theo y6u cAu k! thu4t Van chuy6n vQt liQu, c1iu kiqn trong pham vi 30m'
, o' Ldp drtt puty biing "dn 'iiu Ecrn vi tinh: l r6n
Thlnh phfin hao Phi D0n
vi
PuIys6 nigu Einh
cT.302
Ldp
datPYIYbqrg
can cau
Trang 30b Ldp dfit puly thfi c6ng biing gid pooc t[c
Don vi tinh: I Tfln
Ghi chil
COng t6c lap dflt puly thri c6ng bdng gi6 pooc tic sir dUng ludn hQ gi6 thi c6ng
khi l6p dung c6ng tru th6p
Trang 31s5 nigu Einh mtic Thirnh phin hao Phf Eon
v!
Chi6u rQng m[t
ciu1,5m 2m
Trang 32CT.30400 Lip tlat dflm ngang
d0m ngang
Thdnh phd.n c6ng vi€c:
ChuAn bi, cAu l6p, dpt c6u kiQn ttirng vi tri, c6 Ainfr c6u kiQn vi hoin chinh
theo y6u cii" kI ftuat vfn chuyen vst liQu, c6u kiQn trong pham vi 30m
Don vi tinh: 1 dd'm ngang
so nreu D.inh mlic Thinh phin hao Phi Eon vi KhOi luqog
Trang 33CT.30500 Lip tl{t h-G giing ch6o
Thdnh phdn c6ng viQc:
,:"_r-r
Chudn b!, cAu lilp, dflt c6u kiQn dung v! tri, cO Oiof, c6u kiQn vi hodn chinh
theo y6u cau kf thuflt vfln chuyan vft liQu, c6u kiQn trong pham vi 30m
Trang 34CT.30600 Lip tl4t bin m{t cAu
Thdnh phdn c6ng viQc:
Chuan b!, cAu l8p, d{t c6u kiQn dring v! tri,
"O Ainn c6u kiQn vi hoan chinh
theo y6u cAu kf thuAt Van chuyiSn vat lieu, c6u kiQn trong pham vi 30m
Don vi tinh: lmd cAu
Trang 35CT.30700 Lip tlat hQ thSng neo c6p vho m5, trg
Thdnh phdn c6ng viQc
Chudn bi van chuy6n c6u kiQn dd gia c6ng dlin vi n llp d{t trong ph4m vi
30m, l8p dflt c6u kiQn vdo v[ tri, c6n chinh, dinh vi c6u kiQn dring theo y6u ci.u k]
Trang 36CT.30800 Bit c6c c6p
C6ng t6c bht c6cc6p bao g6m bit c6c c6p chri vd bit c6c c6p chSn glQ4,bht
c6c c6p chdng tic ngang
Thdnh phin c6ng vi€c:
ChuAn bi, bEt c6c c6p,v4n ch[t dim b6o y6u cAu k] thuft- Vfln chuy6n vft
[Qu, c6u kiQn tong pham rri gO* :
Eon vi tinh:'1 bQ e6c c6P