D!A K Y T H U A T - T R A C D I A NGHIEN CI>U MAY DO SAU H | AM DA TIA VA K H A NANG U'NG DUNG TRONG C O N G TAC KHAO SAT C O N G TRJNH Cf VIET NAM ThS PHAIW V A N Q U A N G C6ng ty co phan t y v a n & phat trien t i n g Ha Viet ThS DIEM C N G T R A N G Vign KHCN X a y d y n g Tom tdt: Bai bao giai thigu sa lirgx: ve nguyen tic hogt dong cua may hoi am da tia, kha ning O-ng dicing ky thu$t cdng tic khao sit mot so dang cong trinh d Vigt Nam nhw: Khao sit bin tiu, bin cing; khio sat luong tau tren song va tren biin; khio sit dudng ing dan diu, dan khi; quy hogch biin bao v$ tii nguyen; Cae nghien cim ve ly thuyit vi so ligu dgc t/jyc nghigm cho thay vigc ii-ng dt^ng may siu hoi am da tia cdng tic khao sat dja hinh dam bio dirgv: han sai cho phep va mang lai higu qua kinh ti cao vyc xung quanh d y dn Vdi cdng nghe sau truyin thing nha sao, thadc day, sdu hoi am dan tia, chung ta khd ed the dap dng dygc ydu cau ve ky thudt, t i l n dg eung nha dp chinh xdc ma cdc nha thau thi cdng nyde vd quoc t l daa Vigc nghien cdu dng dung may sau hoi am da tia cdng tae khdo sdt mgt s6 dang cdng trinh biln g Viet Nam mang ttnh cap thiet nhdm gidi thigu cdng nghg, nguyen tac hogt dgng vd k i t qud thu dapc dp dgng thiet bj vao san xuat LDgtvande mdy sau hoi am 6" nadc ta nhdng ndm trade day khdng cd nhieu eong trinh tren b i l n yeu cau dge khao sdt ^la hinh day bien vdi dO ehinh xdc eao, vdi sy nghiep cong nghidp fida - hign dai hda dat nyde, thye hign chiln lygc phdt trien bien Vigt Nam d i n nam 2020 chOng ta dang dau t y r i t nhilu cdng trinh, d y dn khai thde cdc nguon Igi t d bien nhy; phdt trien cdc khu kinh te ven bien (khu kinh l l Nghi San, Vung Ang Hdn La, ), cdng trung ehuyen hang hda quoe t l (cdng Dinh Vu, cdng Vung Ro, cdng Vdn Phong), khai thde dau, khf dit qui hogeh phdt triln du Ijch bien, bdo vd tdi nguydn, De ddp dng nhu cau phdt triln dd can phai khao sdt dja hinh day bien vCing ven bd d l phye vy thiet ke nao vdi luong tau, bai dgu, khu Khdi niem, nguyen ly cau tao va hogt dgng ciia fvldy sau hoi dm da tia (l^lultibeam Echo Sounder-MBES) dygc phdt minh khoang nhdng nam 1970 trdn eg sd cOa mdy sdu hoi dm dan tia Hg thong ndy cho phdp xdc djnh chi tiet be mgt day bien I d nhilu tia don, ket qud m0t l l n xdc djnh dygc hdng trdm diem dO sdu trdn mgt mgt phang vudng gdc vdi dygng di cua tau hogc ed mgt ddi dg sau ed dO rpng nhat djnh (mgt eat), long s6 cae mgt eat dpc eua cac kenh tin hidu cd t h i tgo nhilu lan trdn mpt gidy €}g rpng ddi qudt thudng gap t d den lan dp sau, gdc m d eua chum tia c6 t h i dgt den tren 150 dp (tCiy tdng logi mdy vd hang san suit) vd goe kgp eua cdc tia dan ke cd the nho han Hinh May siu hoi am da tia T^p Chi KHCN Xiy di/ng - so 3/2014 47 BIA Kf THUAT - T R A C P | A Vfti hinh may flo sau hoi am da tia c6 gSc mo ohCm tia phat la 120 36, 25 chum tia song phat va thu vS, gdc kgp eua mdi chum tia sdng Id 2,4 den Hinh Md ti s6 ligu tinh toin vi td diem vi dg siu cua nurirc Bd phat nhieu chum tia ed edch mpt khoang thdi gian nhat djnh lai phat xuong day nadc mOt lan vdi mpt t i n so nhat djnh, tfn higu phat xudng ddy nadc phan hoi trd lai dygc thu bang he thong thu tfn hieu dgt d than tau, gid trj vj tri va dp sau cua chiing dapc u - t i e dp dm nyde; At, - khoang thdi gian t d luc phdt sdng den ICic thu eCia chum tia song thd i; x; - khodng each t d diem sau d i n dadng ddy dpi di qua mdy do; tinh theo cdng thde (1): H, - dp sau t y mdy den day nyde cOa ehCim tia X.=-C.At-.smeA ' I H =-C.At,.sos9,\ ' J sdng /; Hi#n trdn I h l gidi cd n h i l u hang sdn xult mdy sdu hoi dm da tia nha: hang ODOM eua My, Trong dd; ft- gdc kgp eCia chum tia sdng / v d i dudng vudng gdc; Simrad ciJa Ddc; Kongsberg eua Na Uy; hang Reson ciia Dan Mach Bdng ^ M^t s6 logi miy siu hdi im t^odel Frequency (kHz) Min/max depths (m) Max swath width EM2040C 200-400 0,5 - 500 Single head: 4,3 X D/580m/130 degrees Dual head: 10 X D/690m/200 degrees EtWl2040 200^00 0,5 - 600 Single RK: 5,5 X D/800m/140 degrees Dual RX: 10 X D/900m/200 degrees E[^710RD 70-100 3-600 5.5 X D/1100m/140 degrees Elyl710S 70-100 -1400 5,5 X D/1800m/140 degrees EM710 70-100 - 2000 5,5 X D/2300m/140 degrees EM302 30 10 - 8000 X D/10-11km/143 degrees EIV1122 12 50-11000 X D/35-40km/143 degrees Available configuration X1 single and dual head 0,4 X 0,7; 0.7 X 0,7 Single and dual RK conf for increased swath and with single and dual swath capability for increased seafloor coverage X 2; X 2* ' Short CW transmit pulses 0,5x1; x l ; x2and2x2* ' CW transmit pulses 0,5x1;lx1;1 x2and2x2' * CW and Fful transmit pulses 0,5x1; 1x1; 1x2 ; 2x2 ; 2x4; 4x4* • Other customer specific conf available on request 0,5x1; 1x1; 1x2 ; 2x2 and 2x4* * Other customer specific conf A on R Vdi mpt bO mdy sdu da tia, cg t h i vdi mdy I\/1B1 hang ODOIVI sdn x u l t c6 nguydn \'j/ c l u tgo vd hogt dpng nhy hinh Tgp chi KHCN Xiy dyng - so 3/20U D!A K ? THUAT - T R A C 1 BIA Tl'.t o t w LAN ports o n bt uied to inttffKt to a r caftntoiilsiliw Kiftwirt luUi U Hf^ck Nlvisun f f i i l l l t E l ll Input l h n ) i # Bit port Hvl n n ^ b r Chi P i i M » « SKMd | m ) !£p PC il n n n K l t d v ' r a ^ n E i ^ t r t c ' o n,(i f * V B l c o r M ' sflfinari M A g - t B i i n w^mthtMimfonfinjjnd HLflOHInAML ronnit,cinbe(aii(( interfuddirieUirtfi tta uwhtid, or thMghiwlJI cermctlDnMiteRTA bottom d«([lKini3( * h w thf loundefs s f t t r p t i n b >nt(rfacM ^ throiifh thi Mpfi I/O sinii p o n ir sdditHni.iflhtminiflr.itnsorrtauirts heidtrjindGPS input ih«nil-is can M corn«c:orwhic^ ^ ^ H provides pcwer ^ ^ B :eth(SilurKt«r ^ W POWHinie The H»8«( Pitch if.i m or MOTION o' th« Y M » I ll inpiil m the TSSUormai % GK l/e of th« i t v i b r d NMEA ZM,GGA M d VTG m t u v , ««h H i e f t t M •Wit • H IT ''''''^' '^""'^ '^ H B ^ E V and JOVol'j UC IrDnt a Ji;Cl^i« Wrough Mlf '^Haif.g and GP5 local pCrMt aidt^fStfiaiparu source H Hinh Nguyen ly ciu tgo vi hogt ddng cOa miy siu hoi im da tia Gidi phdp ky thuat de nang cao chinh xae 3.1 Xir ly cac nguon sai so tic dgng cOa moi truvmg Cdc nguIn sai s6 dnh hydng din kit qud sdu nhy: lac ngang - Roll, lie dpc - Pitch, Igch hadng ehay tau - Heading vd sy dao dgng cOa tdu theo phygng thang ddng - Heave Hiding Roll Pitch Hinh Trgng thii cOa tiu ehju tic ddng eua mdi tnjdng T^p Chi KHCN Xiy dung - so 3/2014 49 D\A KY THUAT - T R A C D\A Nhd cd bp cam bien cdc gia trj dg sau tinh dupe da loai bd cac nguon sai so lac dpng cCia mdi tradng gay nen nha song, gio, thuy ehieu 3.2 Giai phap djnh vj Vdi cdc may thu DGPS ed kha nang tieh hgp d d lieu GPS va GLONASS de giai bai todn djnh vj da cho dO chinh xae rat cao < 10 em vdi on dinh tdi 95 % Giai phap cdn au vigt han ea la khdng phg thugc vdo vj tri khao tren bien, thiet bj gon nhe va k i t noi vdi cac thiet bi sau dan gian Hinh Thu va xu- ly tin hieu dinh Vdi cdc may sdu don tia khong eo thiet bj Ninh vdi long so von dau t a trSn 155 tri^u USD trilu ty dpng nen mdi tgi khu vyc nao c i n to Cong ty TNHH HALA Viet Nam ldm tong thau thi cong chdc thCJy chieu bang phaang phap dpc so trye tilp qua mdc nadc trgn thadc va ghi lai thdi gian dpc s l Vdi may sau da tia cdng vigc ndy dugc thye hign ty dpng qua bg trieu ky, so ligu thu dygc xay dyng Quy md cdng s u i t thilt k l , khai thac cua b i n : Tong ehilu ddi 594 m; chieu sau trade bin -13 m hai do; dd sau luong tuyen l^hai thde -10 m hai do; trul vdo bg x d ly thdng qua cong C0IV1 be rpng tuyen luong 130 m; kha nang thdng qua cCia llfng dgng t h y e nghiem may sau hoi am cang cd cdng suit thilt ke toi da dgt 1.000.000 TEUs cong tdc khao sat cong trinh bien d Viet Nam Dy an dau l a xdy dyng eae ben cang s6 2, vd cang Quoc te Cai Lan - Tp Hg Long - tinh Quang Khi dl vdo hogt dgng cang c6 t h i tiep nh^n tdu container sdc chd 3.000 *4.000 TEUs va tau hang rdi trpng lai den 50.000 DWT Hinh Toan cinh xay dung cing Container Cai Lin - Tp Hg Long - Quing Ninh Dy an cd khoi lagng ngo vet rat Idn, ta van jiam sdt vd nhd thiu yeu cau phai cung cap d d ligu •'J^C sau hoi am da tia da dygc nha t h i u lya ehgn d l dac thdnh Igp ban dia hinh day bien khu vyc dy dn ban vdi ehu ky - ngdy/lan de tinh toan khoi lugng vd bien phap thi cong Vdi tinh nang au vigt vygt trOi v l thdi gian, mdt dg d i l m , dp chinh xdc m^y 50 San pham ban khu v y c b i n so dype bang may sau hoi am da tia T^p ch'i KHCN Xay d{mg • so 3/2014 DjA KY THUAT - T R A C DIA Binh cang Container Cai Lan - TP Ha Long - Quang Ninfi TJI$: 1/500 - H$ tpa ao VN 2000 - IMat m atoi 1x1m - H^ cao Hon Dau - Duong dong mijc 0.5m Hinh Bin dd d&y bi4n dux;fc bi§n tap tif dieff$umiy sau h6i Sm da tia Tap chi KHCN Xay dimg - s6 3/2014 51 DIA K ? THUAT - T R A C OjA I Km:{K46"l in Hinh 9, Mgt cit day bien dugc ndi suy ti> mo hinh dg cao tr4n ban Ket luEin Vdi k i t qua thu dygc cd the di den ede k i t lu§n: phu hgp vdi khu eo sau khoang ' 500 m nha may EM2040C T A I L I E U THAM K H A O - Vigc dng dung mdy sau hdi am da tia cong tdc khao sdt dia hinh de lap ban dja hinh day bien cho dg ehinh xdc eao ddp dng dugc lien dp theo yeu cau, mang lai hieu qua kinh te eao; - So vdi ede phuang phdp dgc taiyen thong mdy sau hii am da tia c6 nhdng linh nang uu vigt sau: giup eho qua trinh dae dage thye hien t y dpng hda hoan loan; + Giai phdp ky thuat da loai try cae nguon sai so bien vd thuy ehieu Phaang phap dinh vj vdi thilt bi thu tien tiln cho phep dae d bat ed noi dau ma dp H O A N G T R A N PHLTONG, Nghien cuu dac linti k? thuat ciJa mdy sau hoi am da tia ATLAS HYDROSWEEP MD-2 vd khd nang ung dgng cdng tac ve bdn d l dja hinh ddy bien, Luan vin thac sTky thuat, DaihgcMd-Bia chit Hi Ngi, 2008 + Cdc thiet bj hign dai, dong bp va dp on djnh cao mdi tradng dgc tren biln gay nen nha gid, sdng DANG NAM CHINH, Nghidn cdu hodn thign cdc chi tieu ky thu|t va quy trinh cdng nghg dac biln o- Vi?t Nam, Bio cao tdng kit de til KH&CN cap bg (BO Giao dge va Dao tao) Ma s6: B-2007-02-35, 8/2010 T R A N V l t T T U A N , P H A M D O A N M A U , Giao trinh trac dja bien, Nhi xuat ban khoa hgc ky thugt, 2011 ALEX OSBORNE, LAM KAl WING GcGPS for offshore tide measurement, Geomatics World U.S Amiy Corps Engineers, Engineering and Design Hydrographic surveying Department of the Army, Washington DC, 2004 chinh xde van rat cao c d < 10 cm va on dinh den 95%; + Kha nang quel dage 100% day bien cung e l p md hinh so dia hinh chinh xae va trung thye hon nhieu so vdi phaang phdp truyen thong - Vdi dp chinh xae dat dage may sau hoi am da tia dapc dng dgng cdng tac khao sat long ho thiiy dign, dgp nyde phgc vu tygi lieu de xde djnh khoi lagng bun Idng Irong mua maa lu - Khi khao sdt day sdng, khu quy hoach cang biln g Viet Nam nen dung cde may cd tan s6 eao, cae may 52 u A Division of C&C Technologies, C-Nav GPS System Operations Manual, Washington DC, 2003 Trimble R7 GNSS, USA Neptune training course, Kongsberg 2010 Sis & EM 710 training course, Kongsberg 20)0 Ngay nh$n bii si>a: 18/8/2014 T^p Chi KHCN Xay dtmg - so 3/2014 ... THUAT - T R A C P | A Vfti hinh may flo sau hoi am da tia c6 gSc mo ohCm tia phat la 120 36, 25 chum tia song phat va thu vS, gdc kgp eua mdi chum tia sdng Id 2,4 den Hinh Md ti s6 ligu tinh toin... Hi#n trdn I h l gidi cd n h i l u hang sdn xult mdy sdu hoi dm da tia nha: hang ODOM eua My, Trong dd; ft- gdc kgp eCia chum tia sdng / v d i dudng vudng gdc; Simrad ciJa Ddc; Kongsberg eua Na... den ICic thu eCia chum tia song thd i; x; - khodng each t d diem sau d i n dadng ddy dpi di qua mdy do; tinh theo cdng thde (1): H, - dp sau t y mdy den day nyde cOa ehCim tia X.=-C.At-.smeA ''