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Thong tin khoa hQc cong ngh~ mo A'''' ~ A'''' 7 7 NHUCAUQUANTRACDIA CHATTHUYVAN VA KHAOSATHOt''''T DONGCACTO trong ~hai t/idc mo silt ~Ch 1 (fie In this paper, the authors provide some main features about Thac[.]
Thong tin khoa hQc cong ngh~ mo A' ~ A' 7_ _ NHU CAUQUANTRACDIA CHATTHUYVAN VA KHAOSAT HOt'T DONGCACTO ~hai t/idc mo silt ~Ch In this paper, the authors provide some main features about Thachkhe Iron mine (Hatlnh province) Including geological structures, hydro geological and engineering geotechnical conditions, etc Depending on the mining schedule, the authors suggest some essential demands for surveying hydro geological structures and cavern movements during mining activities at Thachkhe iron mine In order to ensure safety and labor productivity I Lich Slt tham - thiet ke mo' Me sat ~~~ch ~he-Ha Tinh dLlc;1c ngLldl ~hap? (D:pr~t, CoLanl )AdLlalen ban d? d!~ chat £)ong ,DU'dn~ ty I~ 1:2.500.000 ta trLldc 1954 Nam 1962, may bay dia v~t Iy bay qua b d(> cao 300m phat hi~n khu '!le ~on~ tac khoan dao tim kiem bat dau tlt 1963 tCJi1966 Sa~ do, My nem born mien ~ac nen vi~c tham dCtng I~i Vi~c tham phai Sd bo xong 1978'' tham ti mixong 1985 £)ay la me co mat khoan tham day dac: Giai do~n tham ti mi x~c 1.(fie TS NGUY~NVANCHI ThS LUU XUAN THI,1C - Vi~n Khoa h9c Cong ngh~ Mo TKV KS H6 DUC SiNH KS D~NG NGQCTHANH Cong ty Co phan sat Th~ch Khe S=0,026; P=0,122 Trii ILlc;1ng Mitsui, Cong ty Nichimen va khai thac la 320+370 tri~u tan Cong ty Nissho Iwai (Nh~t co ham ILldngFe tCJi60% va Ban); T6 ch([c UNIDO;Cong ty phai boc 662 tri~u m3 dat da Dr Otto Gold (Nam Phi); Cong (Ktb=1,79m3/tan) Ham ILlc;1ngty Rheinbraun Engine~ri(CHLB Zn qu~ng cao trung bin~ £)([c); Consortium gom Krupp O,07% Th~ch Khe la me sat (CHLB£)([c),Genrco (CH Nam VaGloai ICJntren the giCJiva la Phi) va Mitsubisshi(Nh~t Ban); me 10thien ICJnnhat Viet Nam Han QuOc cOng khoan lay thesi gian tCJivai t6ng m~u Cong ty FeroStal (CHLB m([c dau tLlcho me+tuy~n ICJn £)([c), Vi~n Giprorus (LB hdn ca khu Lien hdp loc hoa Nga) dl!dau thau I~pbao cao dau Dung Quat tien kha thi (dLlc;1c phe duy~t nam 2005), bao cao kha thi Nam (Lien ~978-~98~,A phe duy~t) Glprorus Xo cu) I~pVI~n bao (dang dc;1i ? ? ' ' 'A' II Md via kh al dao th I.t t kh th (P FS) h 'A ? ? O cao len a I reco:_ me sat va nha may tuy~nme nghuitm: Th~ch Khe TCt tCJinay, Ng~y 28/5/2007 co thong nhieuddn vi da tCJiThach Khe bao so 119/TB-VPCPcua Van phong Chfnh phu thong bao_y nghien cUu' I~p thiet 'ke khai d!nh me co 544,08 tri~u tan thac-tuy~n qu~ng-Iuy~n kim kien cua Thu tLlCJng Nguye!1 qu~ngsat (cap B/B+C1=21%) nhlf Cong ty Krupp-Lohrho Tan DOngve DI! an me sat ham ILlc;1ng(%): Fe= 42,47; Pacific (CHLB fJt1c);Cong ty Th~ch Khe Sau theo giay Mn=O,119; Zn=0,033; Nipon Steel cling vCJiCong ty dang kf kinh doanh s6 Bang Tom tat khOiIl.f9'I1g tham mo sat Th~chKhe tir1962 tOtnay vCJi TT I Giai doan tham Tli Khoi luan dii thuc hien , Den So LK Bam Quan tr~c 259mau m/Oc ~~~~:ffi;a;~;;{J&Ut~~;~_ Thi:lmdo ti mi Sau thi:lmdo ti Dr.Kurt Wiesner, nhom 1981 11984 2008 1/97 GMBS khoan II KHCNMOs6 6/2008*D~ACOMO I 443 I Hut oe1n20LK Hut chum 18LK ~ - "'-"-~"-""-"'-"'-'-''''-''''''-'-''''- 13LKn6ng I 19 LK sau N ~ Laymau _ 100 mau m/Oc ._ - - M~uqu~ng Thong tin khoa hQc cong ngh~ mo Sd Ks hoach va £)au tLfHa Tinh cap 02/4/2007 da I~p Cong ty C6 phan sat Th~ch Khe gom 09 c6 dong voi von ban dau 2400 ty dong (T~p doan TKVg6p 30%, thCtnhi la T6ng cong ty Khoang san ThLfong m~i Ha Tinh g6p 24%) H9i dong quan tri Cong ty C6 phan sat Th~ch Khe 8/10/2007 da quyst dinh 14/Q£)-H£)QTcho phep tri~n khai phLfong an tha nghi~m cong ngh~ thi cong tren nt9n cat va set Cong ty TLfvan XD Me & CN, Cong ty than CQc Sau va Vi~n KHCNMe la cac 28.03.000375 don vi thist ks, thi cong MI1~ nllck h~ Ihifp.~-m 0.00 -2,00 ' -3,00 ' moong tha nghi~m dao SaU khoang 8+10m (12/4/08) ghi nh~n dLfgcmllc nLfocngam h~ thap d cach bd moong toi 860,1m (hinh 1) NhLf v~y, dLfdng thai nLfoc bom tlt moong tha nghi~m can phai dai hon 860m thi moi giam thi~u ILfgngnLfocbom I~i ngam trd I~i vao moong Khi day moong xuong toi 400, ban kfnh h~ thap mllc nLfocIan r9ng to; 2765m bi~n Bong cach trung tam me c6 1700m Van de d6 thai Ian ve phfa bi~n xet ve g6c d9 dia chat thuy van la can thist Kho.!-ng,cach t6i bo ~oong! m 532.3m 465m -1.00 va theo d6i phLfong an tha nghi~m Bu6i' giao ban dau tien cua don vi thllc hi~n phLfong an tha nghi~m ngay30/5/2008 t~i Th~ch Khe da cho thay cac thist bi dao, may xuc thuy Illc gau ngLfgc dung Uch gau 2,0-2,8m3 va a to tai trQng 15-27 tan dLfavao tha nghi~m da an toan hi~u qua (Thong tin khoa hQccong ngh~ me so 4+5/2008) Rieng cong tac thoat nLfoc me thi kh6 khan: da thang mua kho phai dung may n6 phat di~n ch~y bom thoat nLfoc me vi chLfa c6 di~1) ILfoi Khi day 599.73m 662m - 723.7m -.-. -4l _1)1I(_ _ _ # 785J15rn # # , , # - - ' 860.1 m ; ; -4,00 ; :'i.oo , , ; -6,00 - - - - i , # -_.~ N.OO ' 9.00 H~ thifp trung " ; , -.- blnh ngay, ~m ; ~ 7.00 - - '- - - -' -. -.- ' - - 11I.00 Hinh 1- Mtit nWe ngam hl1 thap trung binh ngay, em Ml,I'c 2:'\.n nuac 20.0., tinh tiing Q4 t~i gi€ng - Luc;mgrnuangay - Mt,rcnu6c tinh - Linear (Mt,rc 07 cach - - ba moong 680m r 3.5.0 I f 30.0 nu6c tinh) 2~.O a I."'.n y = -O.2627x + 23.355 20.0'~ ~ , 10.0 I I Ngily quan trac g ~,oj (),{) I~.n lO,n , , , ~ I -I , I > -~ ,- j 5.0 I 0.0 §P~$~~~~#~~####~#~#~~~~~~~~~~#y Hinh KHCN MO so 6/2008* D~Aco MO II Thong tin khoa hqc cong ngh~ mo ~ "'- " ~:~:"'W">' ~ -.' ', LL.~~ " ' ~ ':: - 80 Dong sau 12-14m co hang chi;lCdi~m bj xoi troi sau dam mlta 70mm (chi;lPngay 31/5/2008) va lap xa trung tam moong It thap mlJc nLtoc xung quanh nhat 2800m ve phla bie;n moong (gom thoat nltoc va on d!nh be me) III Nhu cau quan trac £>CTVva khao sat cactd hoa Qua khao sat thlJCd!a va Theo d5i ho~t d9n9 bdm nghien cltu tlt Ii~u 40 nam thoat nltoc va nao vet bun tham thiet ke me cho thay: chay VaG ho bdm cho thay 1.Ca'n quan trac nutic ILt