[TT 3/7] 6-7: kho+?i co^ng xa^y du+.ng ca^`u My~ Thua^.n

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6-7: kho+?i co^ng xa^y du+.ng ca^`u My~ Thua^.n

* Thi co^ng trong 36 tha'ng, giu+~a na(m 2000 se~ hoa`n tha`nh
Theo Ban qua?n ly' du+. a'n My~ Thua^.n (BQLDAMT), ne^'u kho^ng co' gi`
thay ddo^?i, lu'c 9 gio+` 30 sa'ng 6-7-1997, ta.i bo+` ba('c xa~ Ho`a
Hu+ng, huye^.n Ca'i Be`, ti?nh Tie^`n Giang, se~ kho+?i co^ng co^ng
tri`nh xa^y du+.ng ca^`u My~ Thua^.n ba('c qua so^ng Tie^`n.
DDa^y la` du+. a'n ha. ta^`ng lo+'n, co' y' nghi~a quan tro.ng ddo^'i
vo+'i su+. pha't trie^?n kinh te^' - xa~ ho^.i DDBSCL va` ca? mie^`n
Nam. Nho'm PV Tuo^?i Tre? co' ma(.t ta.i khu vu+.c se~ kho+?i co^ng xa^y
du+.ng ca^`u, ghi nhanh ve^` co^ng vie^.c chua^?n bi. va` pho?ng va^'n
ky~ su+ Le^ Long Di`nh, to^?ng gia'm ddo^'c BQLDAMT, ve^` ca^y ca^`u
na`y...

Tru+o+'c gio+` kho+?i co^ng

o+? nga~ ba quo^'c lo^. 1 ddoa.n re~ va`o ca^`u My~ Thua^.n, mo^.t
chie^'c xe lu, mo^.t ma'y u?i cu?a Co^ng ty Co^ng tri`nh giao tho^ng 77
ddang kha^?n tru+o+ng ca'n pha(?ng lo+'p dda^'t ddo? mo+'i ddo^?.
DDu+o+`ng va`o ca^`u dda~ ddu+o+.c hoa`n tha`nh pha^`n ne^`n. Hai be^n
ddu+o+`ng ro^.ng ra~i, thoa'ng dda~ng, xe co' the^? cha.y va`o mo^.t
ma.ch, kho^ng nhu+ tru+o+'c dda^y pha?i cha.y la'ch tra'nh o^? ga`. o+?
ddoa.n giu+~a ddu+o+`ng va`o ca^`u, ca^`u Che'o dda~ ddu+o+.c xa^y xong.
Va`o to+'i bo+` so^ng, khu dda^'t 2 ha phi'a be^n tra'i dda~ ddu+o+.c
san la^'p ba(`ng pha(?ng. No+i dda^y tru+o+'c kia la` vu+o+`n tu+o+.c,
ao ho^`, nay dda~ ddu+o+.c du+.ng le^n mo^.t khung nha` ba(`ng the'p
ddu+o+.c du`ng la`m kho chu+'a va^.t tu+. Ca'ch ddo' khoa?ng 100m lu`i
sa^u va`o bo+` la` mo^.t gie^'ng nu+o+'c dda~ ddu+o+.c khoan hoa`n
chi?nh. DDa^y la` nguo^`n nu+o+'c chuye^n du`ng cho vie^.c xa^y du+.ng
ca^`u My~ Thua^.n. Anh Phan Va(n Nghi~a, phu. tra'ch ddo^.i thi co^ng,
cho bie^'t: theo ye^u ca^`u ky~ thua^.t, kho^ng ddu+o+.c la^'y nu+o+'c
na`o kha'c ngoa`i nguo^`n nu+o+'c khoan o+? dda^y dda~ ddu+o+.c tha(m
do`, pha^n ti'ch ra^'t ky~. 
Nga`y 30-6-1997, Ban gia?i pho'ng ma(.t ba(`ng ca^`u My~ Thua^.n
(BGPMBCMT) dda~ ba('t dda^`u pha^n lo^ chia ne^`n cho 23 ho^. da^n
thuo^.c khu vu+.c gia?i to?a trong pha.m vi xa^y ca^`u My~ Thua^.n.
To+'i lu'c na`y, ngu+o+`i da^n mo+'i ba('t dda^`u ca?m tha^'y ye^n ta^m
do+`i ddi. Tru+o+'c kia no+i dda^y co' 106 ho^. cu+ ngu., ca^y tra'i
cu~ng ro+.p ma't la('m, chu? ye^'u so^'ng ba(`ng nghe^` buo^n ba'n nho?,
la`m vu+o+`n, cha.y xe o^m, bo^'c va'c... Ba^y gio+` thi` dda~ ddu+o+.c
do.n de.p tro^'ng tra?i. Trong so^' 106 ho^. di do+`i, co' 23 ho^. co'
nguye^.n vo.ng va`o khu ta'i ddi.nh cu+, dda~ ddu+o+.c Nha` nu+o+'c bo^'
tri' o+? tre^n mo^.t khu dda^'t co' die^.n ti'ch 3.000m2 cu~ng o+? ga^`n
ddo', ca'ch quo^'c lo^. 1A khoa?ng 100m. So^' ho^. co`n la.i tu+. ti`m
no+i o+? mo+'i tu`y theo y' thi'ch. 
Thanh nie^n trong vu`ng ddang nuo^i hi vo.ng ti`m ddu+o+.c mo^.t cho^~
la`m ta.i co^ng tri`nh na`y. Song theo o^ng Tru+o+ng        Co^ng Ha?i,
tru+o+?ng BGPMBCMT, thi` "chu+a nghe no'i ddo^.ng ti~nh gi` ve^` vie^.c
tuye^?n du.ng ngu+o+`i lao ddo^.ng ta.i ddi.a phu+o+ng...". 

Ca^`u My~ Thua^.n "ke'o ga^`n" ca'c ti?nh DDBSCL vo+'i TP.HCM
Ky~ su+ Le^ Long Di`nh, to^?ng gia'm ddo^'c BQLDAMT, cho bie^'t: ca^`u
My~ Thua^.n ddu+o+.c xa^y du+.ng se~ "ke'o ga^`n" ca'c ti?nh DDBSCL
vo+'i TP.HCM va` ca'c ti?nh trong ca? nu+o+'c. Ca^`u My~ Thua^.n la`
mo^.t du+. a'n lo+'n, tro.ng ddie^?m o+? phi'a Nam, go'p pha^`n ca?i
thie^.n co+ so+? ha. ta^`ng cu?a ddo^`ng ba(`ng Nam bo^.. Chie^`u da`i
toa`n ca^`u la` 1.535,2m, go^`m ca^`u chi'nh da`i 660m theo kie^?u ca^`u
da^y va(ng vo+'i tha'p chi'nh cao 123,5m co' ba nhi.p, nhi.p giu+~a la`
nhi.p tho^ng thuye^`n da`i 350m va` khoa?ng tho^ng thuye^`n la` 37,5 x
110m, hai nhi.p hai be^n mo^~i nhi.p da`i 150m. Ca^`u da^~n hai dda^`u
ca^`u mo^~i be^n 11 nhi.p, da`i 437,6m, ca^'u ta.o theo da.ng da^`m
Super Tee. Ma(.t ca^`u ro^.ng 23,66m cho bo^'n la`n o^to^, mo^~i la`n
ro^.ng 3,5m, co' hai le^` bo^. ha`nh cu`ng ca'c da?i pha^n ca'ch cu+'ng.
Nha` tha^`u Baulderstone Hornibrook cu`ng ca'c nha` tha^`u phu. VN la`
To^?ng co^ng ty Xa^y du+.ng co^ng tri`nh giao tho^ng 6, To^?ng co^ng ty
Xa^y du+.ng co^ng tri`nh giao tho^ng 4 va` Co^ng ty ca^`u 12 (thuo^.c
To^?ng co^ng ty Xa^y du+.ng co^ng tri`nh giao tho^ng 1) se~ thi co^ng
pha^`n ho+.p ddo^`ng chi'nh bao go^`m ca^`u va` hai ddu+o+`ng dda^`u
ca^`u, vo+'i to^?ng vo^'n 95,568 trie^.u ddo^la u'c, Chi'nh phu? u'c
vie^.n tro+. kho^ng hoa`n la.i 66%.  
* O^ng co' the^? gio+'i thie^.u ddo^i ne't ve^` co^ng nghe^. xa^y du+.ng
ca^`u My~ Thua^.n? 
- DDa^y la` ca^`u ca'p da^y va(ng co' da'ng ve? my~ quan ha`i ho`a vo+'i
co^ng nghe^. tie^n tie^'n va` mo+'i o+? VN. Ca^`u chi'nh ddu+o+.c thi
co^ng theo phu+o+ng pha'p ddu'c ha^~ng ca^n ba(`ng. DDa^`u tie^n xa^y
du+.ng hai tru. tha'p chi'nh hi`nh chu+~ H o+? giu+~a do`ng so^ng - tru.
tha'p nam va` tru. tha'p ba('c, hai tru. ca'ch nhau 350m va` ca'ch bi`a
bie^n cu?a ca^`u mo^~i be^n 150m. Tru. tha'p cao khoa?ng 200m (ti'nh
tu+` mu~i co.c dde^'n ddi?nh tha'p), trong ddo' pha^`n mo'ng a(n sa^u
du+o+'i lo`ng so^ng khoa?ng 85-90m. Mo^~i tru. chi'nh pha?i ddo'ng 16
co.c khoan nho^`i ddu+o+`ng ki'nh 2,5m. Hai tru. neo, mo^~i tru. ddo'ng
hai co.c khoan nho^`i co' ddu+o+`ng ki'nh 2,5m. 
Sau ddo', du+.ng gia`n gia'o hai be^n tru. chi'nh va` ba('t dda^`u ddu'c
ddo^'t be^to^ng da^`m ca^`u dda^`u tie^n hai be^n, vu+`a ddu'c be^to^ng
da^`m ca^`u vu+`a du`ng ca'p treo hai be^n ddo+~ da^`m ca^`u. Tu+` ddo'
ddu'c da^`n  ra xa hai be^n cho dde^'n khi ke^'t thu'c. Ca'p treo ca^`u
tu+` 23 so+.i be^.n 15,2mm dde^'n 63 so+.i be^.n 15,2mm ddu+o+.c dda(.t
trong o^'ng nhu+.a ma`u HDPE ddu+o+`ng ki'nh tu+` 160-250mm. Ca^`u da^~n
xa^y du+.ng da.ng da^`m Super Tee la` da.ng da^`m ca^`u mo+'i chu+a co'
o+? VN, thua^.n tie^.n cho thi co^ng va` tie^'t kie^.m va^.t lie^.u
ddu+o+.c ddu'c ta.i ba~i thi co^ng o+? hai bo+`. 
* Ca^`u My~ Thua^.n thi co^ng bao la^u? Bao gio+` hoa`n tha`nh? 
- Theo ke^' hoa.ch, ca^`u My~ Thua^.n se~ thi co^ng trong 36 tha'ng.
Nhu+ va^.y se~ hoa`n tha`nh va`o giu+~a na(m 2000. Sau giai ddoa.n
chua^?n bi. ma(.t ba(`ng thi co^ng, tu+` tha'ng 10-1997 dde^'n tha'ng
5-1998 se~ ba('t dda^`u ca'c co^ng vie^.c nhu+ dda`o dda^'t xu+? ly'
ne^`n mo'ng hai be^n bo+`. Cu~ng tu+` tha'ng 10-1997 dde^'n tha'ng
7-1999 se~ ddo'ng co.c khoan nho^`i dda^`u tie^n xa^y du+.ng tru. tha'p
chi'nh va` tru. neo cu?a pha^`n ca^`u chi'nh. Pha^`n xa^y du+.ng ma(.t
ca^`u thu+.c hie^.n tu+` tha'ng 10-1998 dde^'n giu+~a na(m 2000. Pha^`n
ca^`u da^~n tie^'n ha`nh xa^y du+.ng tu+` tha'ng 3-1998 dde^'n tha'ng
7-1999. 

D.T.Hu`ng - N.C.Tha`nh