Thong tin khoa hoc cong nghe mo ^ TRINH TV KHAI THAC, DO THAI HOP LY cho cac mo than to th ien vung Hon Gai Basing on the results from analyzing current situations of the dumpsites for open pit coal m[.]
Thong tin khoa hoc cong nghe m o ^ TRINH TV KHAI THAC, DO THAI HOP LY c h o c a c m o t h a n to t h i e n v u n g H o n Gai ThS Ll/U VAN THl/C ThS.06 NGOC Tl/dC KS LE BA PHLfC KS BUI DUY NAM Vien Khoa hgc Cdng nghe Mo - TKV Basing on the results from analyzing current situations of the dumpsites for open pit coal mines at Hon Gai area including Nui Beo, Ha Tu, Ha Lam and 917 and the investment projects for mining these mines in near future, the paper refers to the selection of the reasonable mining and dumping sequences for minimizing Dat van de Hdn Gai la mpt nhdng vdng than chd yeu eda nganh Than Viet Nam Hien nay, san lupng than cda eae md vdng Hdn Gai dat tit 13 -^14 trieu tan/nam, chiem 28% san lupng than toan nganh, dd san lUpng than cda cac md Id thien gdm md Ndi Beo, Ha Tu, Xf nghiep than 917, khai trudng Id thien md Ha Lam hang nam la 8,55 trieu tan (tUdng iing vdi 60,6 trieu m^ da't bdc), chiem 63% san lupng than toan vdng Hdn Gai va 17,7% san lUdng toan nganh Theo eae dii an md rpng khai thac lp thien cae md Ndi Beo, Ha Tu, Xf nghiep than 917, khai trUdng lp thien md Ha Lam, tdng khdi lUdng da't da thai edn lai tfnh td' 01/01/2010 cda cac md la 293,31 trieu m^ than 38,97 trieu tan Trong dd: md Ndi Beo da't bdc 86,09 trieu m^ than 19,32 trieu tan; md Ha Tu da't bdc 132,42 trieu m^ than 9,92 trieu ta'n; Xf nghiep than 917 dat bdc 45,85 trieu m^ than 6,51 trieu tan; md than Ha Lam da't bdc 27,65 trieu m^ than 3,15 trieu ta'n Cae du an dau tU khai thac cae md Ndi Beo, Ha Tu, Xf nghiep than 917 va khai trudng lp thien md Ha Lam dupc thiet ke lay td'i da tai nguyen bang phuong phap lp thien la phd hpp vdi xu the chung De dam bao thdi gian ket thde vao nam 2015, nham giam thieu anh hudng tdi canh quan mdi trudng cda phd Ha Long, cac dii an dua phuong an khai thac ddng thdi eae khu viie Tdng hpp khdi lupng than, da't cda eae md Ndi Beo, Ha Tu, Xf nghiep than 917, Ha Lam theo eae dii an da phe duyet tfnh tCf 01/01/2010 dugc the hien tren bang Tuy nhien, thiet ke cae du an ehua xem xet tdng the toan khu viie va danh gia md'c 66 anh hudng cda cae md lp thien vdi ve khdng gian 60 thai eung nhu miic dp anh hudng cda cac bai thai den cae edng trinh ham Id, cdng nghiep, mdi trUdng va sii phu hpp gid'a quy hoach khai thac Bang Tdng hgp khdi lugng than dai cua cac mo Nui Beo, Ha Tu, XN 917, Ha Lam theo cac du an da phe duyet tinh tdngay 01/01/2010 Md Nui Beo NSm KT Dat, 10" m' IVid Ha Tu Dai Than Than, bdc, NK, 10" tan 10^ tan lO^m^ XN than 917 Dai bdc, lO'm' Md IHa Lam Than Than Dai 10i> NK, 10^m' tan 10^ tan Tong cong Than Dat 1^ lO^m^ tan 2010 20.000 4.300 31.804 2.400 9.680 1.100 4.000 550 2011 20.000 4.300 28.260 2.180 9.000 1.100 3.400 550 65.484 I8^350_ 8.130 60.660 3.400 550 58.210 ]7920j 2012 19.500 4.300 26.510 1.970 8.800 1.100 2013 16.500 3.500 25.360 1.970 8.360 1.100 5.800 550 56.020 7.120 2014 8.835 2.200 21.937 1.405 7.500 1.100 5.700 550 42.522 5.255 2015 1.255 726 2.512 1.068 5.350 400 9.117 2.194 Tong 86.090 19.326 45.852 6.518 27.650 3.150 293.463 38.969 133.871 KHCNM SO 7/2010* CNKT LO 9.925 THI£N Thong tin khoa hoc cong nghe m o dd thai vdi cac quy hoach khac vdng - Tai khu vuc bai thai Chfnh Bae, cac md cd sii chdng cheo ve ranh gidi thai, ddng thdi ehUa dua trinh tu dd thai chi tiet theo tdng nam khai thac, da gay khd khan cho cdng tac dieu hanh, quan 1^ va td chd'e thiie hien eda cac md - Vdi Ijeh khai thac - 60 thai theo eae du an da lap (bang 1), cac md lp thien ket thde ddng thdi vao nam 2015 Can cii vao hien trang eae bai thai d khu viic khdng the chiia het khdi lupng da't da thai Sau ket thde khai thac de lai moong nude cac khu viie nhU: Moong via 14 canh Ddng, via 14 canh Tay md Ndi Beo; via 10b, via + md than Ha Tu; khu II via 11 md Ha Lam va via 13 - Xf nghiep than 917 De dam bao an toan cho khai thac ham Id phfa dUdi moong lp thien da ket thde khai thac phai tien hanh edng tae hoan thd vao cac moong khai thac vdi khdi lupng 40,2 trieu m^ va cung dp van tai 4,4km, khd'i lupng dat da hoan thd dupc xdc tii bai thai Chfnh Bac, bai thai via 7+8 60 vao cac moong Thdi gian hoan thd keo dai td' 2-3 nam, dd khdng dam bao giam thieu anh hudng cda mdi trudng hoat dpng xdc bdc, van tai vin cdn tdn tai Giai phap cua cac thiet ke da dUdc duyet Trinh tu khai thac - 60 thai theo thiet ke da duyet eda cac md nhu sau: ' ' KHCNM S6 7/2010 * IVid than Nui Beo: Md Ndi Beo 6ugc liia chpn trinh tu khai thac ddng thdi eho ca edng trudng: Via 14 canh Ddng, via 14 canh Tay va via 11, 13 md rdng, vdi san lupng khai thac 4,300 trieu ta'n than Thdi gian bat dau khai thac tit nam 2009 H- 2015 dam bao viec ket thde ddng thdi gian quy djnh cda Uy ban Nhan dan tinh Quang Ninh Khd'i lupng da't da thai 6dgc quy hoach, 60 thai vao eae bai thai khai trudng via 14 canh Ddng md'e +15 va khai trudng via 14 canh Tay md'c +60 vdi khd'i lUdng 78,620 trieu m^ Khu viie bai thai Chfnh Bac md Ndi Beo dUpc thiet ke 60 den +256, khd'i lupng 25,435 trieu m l Tuy nhien, ket thde khai thac de lai moong nude cua khai trudng via 14 canh Tay va via 14 canh Ddng Theo ke hoach khu viic gam edng trudng via 14 canh Tay va canh Ddng se dUpc khai thac ham IP den miic - 350m De dam bao an toan cho khai thac ham IP phfa dudi se phai la'p hai moong lp thien tren den miic thoat nude tu chay: Khdi lupng hoan thd moong via 14 canh Ddng la 40,2 trieu m^ 6dgc xdc lai tit bai thai chi'nh Bae vdi eung 66 4,4km, khd'i lupng hoan thd moong via 14 canh Tay la 10,8 trieu m^ 6i!dc xdc lai tii bai thai phu Bac vdi eung 66 1,7km duyet chi xem xet rieng le cho md Ndi Beo ma ehUa xem xet den phat trien chung cda eae md lp thien cung nhu ham Id vdng Hdn Gai cd lien quan * IVid than Ha Tu: Md than Ha Tu dupe liia chpn khai thac ddng thdi tat ca cac cdng trudng, dd day nhanh khai thac cac edng trudng via 16, via 10b, via tru canh Tay, via (khu Bd Ld va khu Khe Hum) vdi san lupng tit 2,208 H- 2,535 trieu tan than nguyen khai/nam Cae edng trudng ket thde vao nam 2011 TCr nam 2012 md ehi khai thac cdng trudng via tru canh Ddng va edng trudng via 7+8, vdi san lupng 1,920 ^ 1,980 trieu ta'n than nguyen khai/nam Thdi gian ket thde khai thac md nam 2014 phd hpp vdi chd trUdng cda Uy ban Nhan dan tinh Quang Ninh Tuy nhien, Da an phat then mo than Ha Tu cdn mdt so nhagc diem sau: Du an da quy hoach 60 vao bai thai via tru canh Ddng va Nam Lp Phong vdi khdi lupng 60 thai 28,386 trieu m^ la khong hpp ly vi Uy ban Nhan dan tinh Quang Ninh da cd quyet djnh thu hdi da't khu vtie bai thai Ddng Nam via tru va Nam Lp Phong md than Ha Tu de phuc vu edng tae eai tao mdi trudng theo Quyet djnh sd 4318/QDUBND 20/11/2007 Do vay, tii nam 2009 md than Ha Nha vay, trinh ta khai thac - Tu khdng the thiic hien dd thai d6 thai theo thiet ke da dadc tai bai thai CNKTLOTHI£N Thong tin khoa hoc cong nghe m o - Thiet ke bai thai via 7+8 chua hpp 1^ 60 thai phan phfa Bae gay nguy eo trdi trUpt da't da xudng mat bang Quy hoach bai dd tro xi cda Nha may nhiet dien Quang Ninh - Bai thai Bac via 10b 6ugc md rpng 60 thai ve phfa Bae se lam anh hudng tdi hudng thoat nudc td" mat bang san cdng nghiep +75 md Ha Lam - Khdi lupng 60 thai vao bai thai via 16 la 34,800 trieu m l bai thai via tru la 21,000 trieu m\ khdng phd hpp vdi dieu kien eda hai bai thai Viec 60 bai thai via tru canh Tay vdi khdi lupng nhu tren khd cd the thiic hien 6ddc nguy eo trUpt Id da't da xudng cdng trudng via tru canh Ddng Rieng dd'i vdi bai thai via 16 neu 60 thai vdi khdi lupng nhu tren thi sau xudng sau via tru canh Ddng se phai bdc lai mdt khdi lupng da't da thai, lam cho he sd bdc da tang len, din den giam hieu qua kinh te - Khu VUc phfa Tay bai thai Chi'nh Bac 60 la'n sang ranh gidi quy hoach mat bang san cdng nghiep +75 md Ha Lam 86m, chan bai thai each cap gieng diing 70 m Do vay, phUdng an quy hoach bai thai Chfnh Bac cho md Ha Tu la khdng kha thi Nhin chung, trinh tU - khai thac 60 thai cda md Ha Tu theo du an phat trien md cdn nhieu ba't cap, khdng phu hpp vdi hien trang eung nhu chua ke hoach eda eae md khae khu viic ChUa ed Ijeh trinh 60 thai cu the, cung nhu ed eae giai phap giam anh hudng eda bai thai va nude mat den mat bang san cdng nghiep +75 md Ha Lam va eae ed'a Id +18, +30, +32, +45 thudc Xi nghiep than Giap Khau Du an cung ehUa xem xet va de cae giap phap 60 bai thai via 7+8 (khu viic hien dang 6dgc Cdng ty than Hdn Gai tham dd va dU kien khai thac ham Id dudi md'c +30) de giam bdt khd'i lupng hoan thd xdc bdc td' bai thai ngoai * X i nghiep than 917: Trinh tu khai thac - 60 thai 6dgc Ilia chpn nhu sau: Md via va khai thac phan Trung tam den miie -80 Da'y nhanh khai thac td' Trung tam ve canh Ddng va canh Tay, kSt thde khai thac khu Ddng nam 2011 d md'c -110, ket thde khai thac khu Tay vao nam 2013 d md'c -160 de tao dien 60 bai thai td" khu Tay Bae sang khu Ddng va khu Tay Khd'i lupng da't da 6Udc 60 thai vao bai thai via 10 Ha Tu, bai thai via 13 va bai thai Chi'nh Bae Trinh tU khai thac va 60 thai nhu Du an phd hpp vdi sii phat trien chung eda cac md khu viic Do 60 bai thai vdi khd'i lupng 28,44 trieu m l nen da hoan thd hoan toan khai trudng via 10 Ha Tu va mpt phan Idn khai trudng via 13 * Cac cong trUdng Ichai thac Id thien mo Ha Lam: Viec md rpng khai thac khu KHCNM S6 7/2010* CNKT LO THifiN Bac HOru Nghj eho phep khai thac td'i da tai nguyen NhUng chua xem xet den quy hoach thai toan vdng Da't da thai cda cdng trudng Bac Huu Nghj va khai trudng khu II via 11 6dgc thiet ke 60 thai den cd't eao +120m tai bai thai Chfnh Bac, khd'i lupng 60 thai 11,879 trieu m l thdi gian 60 thai keo dai td' nam 2009 den nam 2013 Hudng phat trien bai thai tii Tay Nam sang Tay Bac gay khd khan eho cdng tae 60 thai eda eae md Ndi Beo, Ha Tu Vdi nhdng ba't cap nhu tren, de khai thac hieu qua cac md Id thien vung Hdn Gai can phai dieu ehinh ke hoach khai thac va trinh tu 60 thai eho cac md nham dam bao sii phat trien ben vung cda toan vung Hdn Gai Lira chon trinh tu khai thac - dd thai hdp ly cho cac md than lo thien vung Hon Gai a Nguyen tac lira chpn: - Phu hpp vdi trinh tu khai thac hien cua cae md - Dam bao dat san lUpng theo yeu eau; phat huy tdi da mang ky thuat hien cd (he thdng dudng giao thdng, dudng dien ); - Odi vdi cdng trudng nao cd dieu kien thuan Ipi eho viec 60 thai thi day manh khai thac, tang san lupng, sdm ket thde cdng trudng dd tao dieu kien cho cac cdng trUdng khac 60 thai - Dam bao thuan Ipi cho edng tae khai thac, van tai, dd thai va thoat nude md Thong tin khoa hoc cong nghe mo - Khdng anh hudng den cdng tac khai thac cac md lan can - Phu hpp vdi quy hoach chung eda toan vdng * Trinh tir dd thai hdp ly dupc lua chon tren cd sd cac nguyen tac sau: - Dam bao chi phf van tai, giai phdng mat bang la nhd nha't ddi vdi tdng md - Han che tdi da cae anh hudng den san xua't cda cae md lan can - Thuan Ipi eho edng tac khai thac, van tai va thoat nUdc md - Do thai td'i da vao eae bai thai - Ket hpp viec 60 thai vdi hoan thd mdi trUdng - Dam bao an toan, hieu qua san xua't, tan thu td'i da tai nguyen va giam thieu den tae dpng mdi trudng b Trinh ty khai thac - dd thai lua chpn: Trinh tu khai thac - 60 thai hpp ly cho cac md Id thien vung Hdn Gai nham dam bao cho cac md qua trinh khai thac dupc lien tuc, nhjp nhang, qua trinh dd thai khdng bj chdng la'n, dan xen giUa eae md, giam thieu anh hudng tdi mdi trudng khu viic va dam bao an toan eho cac edng trinh khai thac ham Id De dam bao cac yeu cau tren, giai phap dUa eho qua trinh khai thac, 60 thai tai eae md lp thien vung Hdn Gai la: Dieu chinh san lupng md Ndi Beo, tang cudng 60 thai vao bai thai vao khai trudng via 14 canh Tay Thdi gian ket thde khai thac md nam 2015; Giam san lupng md than Ha Tu, thdi gian ket thde khai thac den nam 2018; San lupng Xf nghiep than 917 va cae khai trudng lp thien md Ha Lam dupc dieu ehinh phd hpp vdi trinh tu khai thac - 60 thai chung toan vdng, thdi gian ket thde khai thac nam 2015 De thiie hien cac giai phap tren, trinh tU khai thac hpp ly 6dgc Ilia chpn eho eae md Id thien vdng Hdn Gai nhUsau: * Mo Nui Beo: + Cdng trudng via 14 canh Ddng: Bd trf thiet bj cd cdng sua't Idn, may xdc dung tfch gau E = 3,5-^6,7ml d td tai trpng tii 40-^58 ta'n de da'y nhanh khai thac tren khu viic bd Bae va Ddng Bac, tao dieu kien thuan Ipi cho qua trinh xud'ng sau via 14 Trinh tu phat trien edng trinh md td" Nam, Ddng Nam sang Bae, Ddng Bae, vdi trinh tU khai thac nhu vay sdm ket thde khai thac khu Ddng Nam tao khdng gian 60 thai Qua trinh xud'ng sau khai thac VUpt trUde cda edng trudng via 14 se bdc di lang tru da't da giap ranh giiia cdng trudng via 14 canh Ddng va edng trudng via 11, 13 md rpng, lam giam he sd bdc, tao thuan Ipi cho edng trUdng via 11, 13 mdrpng Tay Nam, dUa khu viic sdm ket thde, tao dieu kien cho 60 thai td' khai trudng via 14 canh Ddng phat trien sang Hudng phat trien edng trinh td' Ddng sang Tay va tu' Nam len Bae + Cdng trudng 14 canh Tay: Bd Tay cdng trudng nam sat khu viic Trung doan 213 va dan eU, khoang each td' bien gidi khai trudng den cac khu VUc tren khoang 150-^200m, din tdi quy md nd bj ban che De tang san lupng md can chia khai trudng khu viie: Bd Ddng Bac, bd Tay Bac va bd Nam (khu viic khai thac lai bai sang) Khai thac ddng thdi eae khu vuc de dam bao kha nang bd tri thiet bj khai thac va giam quy md bai nd tren khu vuc bd Tay Nam 2012, khu viic Ddng Bae ket thue khai thac, toan khai trudng ket thde khai thac vao nam 2013 * Md Ha Tu: - Via 10 se ket thue vao 2010, nham dam bao cho khai thac ham Id phfa dudi Khdi lupng du kien da't bdc: 4,350 trieu m^, than 0,300 trieu tan (giam 1.450 trieu da't da, 0,140 trieu tan than so vdi Dii an da 6dgc phe duyet) - Nam 2010, tang san lupng edng trudng via tru canh + Ddi vdi cdng trudng via 11, 13 mdrgng: Cdng vdi qua Ddng len 1,10 trieu tan/nam trinh khai thac eda cdng (tang 40.000 ta'n/nam so vdi trudng via 14 canh Ddng, khai Du an lap nam 2008), giam thac ddng thdi tren toan bp san lupng via 7+8 xudng khai trudng via 11, 13, da'y 0,250 trieu ta'n/nam (giam manh khai thac khu viie phfa 0,320 trieu ta'n/nam so vdi Dii KHCNM SO 7/2010* CNKT LO THlfiN Thong tin khoa hoc cong nghe m o an lap 2008) San lUpng khai thac toan md Ha Tu nam 2010 la 1,650 trieu ta'n/nam, nham muc tieu tao lp trinh ehuyen ddi lao dpng cho Cdng ty than HaTu TCr nam 2011 den nam 2015 (day la thdi gian day nhanh khai thac md Nui Beo), can dieu ehinh san lupng khai thac cda edng trudng via tru canh Ddng xud'ng edn 0,550 trieu ta'n/nam (giam 0,670 trieu tan so vdi Dii an lap nam 2008), giam san lupng edng trudng via 7+8 xud'ng cdn 0,450 trieu ta'n/nam (giam 0,240 trieu ta'n/nam so vdi Du an) San lUpng toan md tri d miic 1,00 trieu ta'n/nam Td' nam 2013, edng trudng via 14 canh Ddng md Ndi Beo se ket thde, tao khdng gian 66 thai cho md Ha Tu Do vay, tCr nam 2013, bai thai via 14 canh Ddng md than Ndi Beo se ed ddn vj tham gia 66 thai la md Ndi Beo va md HaTu Sau edng trudng via 11, 13 md than Ndi Beo ket thue khai thac vao thang 5/2015, se tang cudng khai thac via tru canh Ddng, nang san lupng edng trUdng len 0,750 trieu ta'n/nam San lupng cdng trudng via 7+8 tri d miic 0,350 trieu ta'n/nam de tang eUdng dd bai thai via tru canh Ddng San lUpng toan md dat 1,1 trieu tan/nam, thdi gian khai thac keo dai den nam 2018 * X i nghiep than 917: Md via va khai thac phan Trung tam de'n mCrc - 80 Day nhanh khai thac tCr Trung tam ve canh Ddng va canh Tay, ket thde khai thac khu Ddng vao nam 2011 d miic -110, ket thue khai thac khu Tay vao nam 2013 d mCfe -160 de tao dien bai thai tCr khu Tay Bac sang khu Ddng va khu Tay * Cong trudng lo thien md Ha Lam: Cdng trudng Bac Hdu Nghj va edng trudng khu II via 11 tie'n hanh khai thac ddng thdi Day nhanh khai thac khai trudng Bae HOru Nghj de ket thue khai thac vao nam 2010, tao dien 66 thai cho khai trudng khu II via 11 (dU kien md rdng 6udc tien hanh khai thac sau cdng) Bang Ljch khai thac tdng hgp theo phuang an lua chgn cho cac mo Nui Beo, Ha Tu, XN than 917, Ha Lam' Mo than Nui Beo Nam KT Dat Than Mo than Ha Tu Dat XN than 917 Mo than Ha Lam Dat Dat Than Tong cong Than Da't 10'm' O'tan 10'm' Than Ksx m'/T 10'm' 10'tan 10'm' Than 10'tan 2010 22.000 5.000 21.850 1.650 10.500 1.250 4.000 500 58.350 8.400 6,95 2011 21.400 4.600 13300 1.000 9.000 1.100 4.000 500 48.200 7.200 6,69 2012 18.600 3.800 14.142 1.000 8.400 1.100 4.500 550 45.642 6.450 7,08 2013 15.330 2.900 14.142 1.000 8.000 1.100 5.000 600 42.472 5.600 7,58 2014 7.760 2.070 14.000 1.000 7.500 1.100 5.000 600 34.260 4.770 7,18 2015 1.000 956 14.000 1.050 2.452 868 5.150 400 22.602 3.274 6,9 2016 14.000 1.120 14.000 1.120 12,5 2017 14.000 1.120 14.000 1.120 12,5 2018 12.487 985 12.487 985 12,68 13Z421 9.925 292.013 30919 7,5 Taig 86.090 19.326 10'm' 10'tan 45.852 KHCNM S6 7/2010* CNKT Ld THifiN 6.518 27.650 3.150 10' tan Thong tin khoa hpc cong nghe m o Ljch khai thac tdng hpp cac than 917, cdng trudng Id thien bang Trinh tudd thai hpp If eda md Ndi Beo, Ha Tu, Xf nghiep md Ha Lam dupe the hien tren md dupc the hien tren bang Bang Trinh tudd thai hgp ly cho c^c mo 1^ thien vung Hdn Gai TT Chi tieu Dan vj 2010 2011 2012 2013 2014 2015 22000 21.400 18.600 15330 7.760 1.000 II 11.700 2.385 II 5.100 14515 13211 1.885 II 3.800 4.500 5.389 13.445 10' m' Mo than Nui Beo Bai thai Chi'nh Bac Bai thai via 14 canh Dong Bai thai via 14 canh Tay Bai thai Phu Bic Bai thai +60 l a y Nam 11 Mo than Ha Tu Bai thai Chinh Bic Bai thai via 7+8 Bai thai via tru canh l a y Bai thai via 16 Bai thai via 7+8 Bai thai via tru canh Dong Bai thai via 14 canh Dong Nui Beo Bai thai via 10b III Xi nghiep than 917 10' m' Bai thai Chinh II II 10' m' Bai thai via 10 Ha Tu Bai thai via13 IV Mo than Ha Lam 5.760 1.000 33.894 2.000 1.400 14142 14.000 10.630 5.000 4.225 7.442 4.226 3.500 5.757 9.917 300 II 5.000 3.043 II 1.020 14.000 14.000 14.000 12487 132421 31523 19.474 8.043 1.020 159 •• II II 6.400 9.774 3.430 3.463 5.786 10570 10537 8.055 1.700 4841 5.000 12679 7.646 52962 1.700 10.500 9.000 8.400 10.500 4.700 2.208 4.300 5.592 3.352 600 4.648 7.500 2.452 15.200 4.500 5.000 5.000 5.150 27.650 II II 10' m' Tong saoGO 1.400 14142 II 2018 2.000 13500 " 2017 34.711 21550 II 2016 14.065 II Bic NSm khai th^c 4.000 4.000 KHCNM SO 7/2010* CNKT LO THI6N 8.000 7.500 2.452 45.852 17.408 13.244 Thong tin khoa hoc cong nghe mo Bai thai Chinh Bac •• 3.314 Bai thai Bac HOfu Nghj •• 686 Bai thai via 10b H a T u Bai thai khu II via 11 Bai thai via 14 canh Tay Nui Beo v Tong c o n g " 3.314 3.394 6.960 2.880 606 606 II 5.300 4.561 739 1.620 439 4.261 5.150 22.602 •• iew 58.350 48.200 45.642 42.472 34.260 Bai thai Chinh Bac " 36.144 12085 6.433 7.442 4.226 Bai thai via 14 canh Dong " 5.100 14.515 13211 8.285 9.774 10570 Bai thai via 14 canh l a y 3.800 4.500 7.009 13.884 10.021 6150 Bai thai Phu Bac Bai thai +60 Tay Nam Bai thai via 7+8 Bai thai via tru canh Tay Bai thai via 16 Bai thai via 7+8 10 11 12 Bai thai via tru canh Dong Bai thai via 10 H a T u Bai thai via 13 13 Bai thai Bac HiJfu Nghj 14 Bai thai khu II via 11 II " 11.470 14.000 12.487 1400 II 3.500 5.757 II 5.000 3.043 II 1.020 10537 8055 7646 2.000 1.400 9.917 19.474 300 8.043 1.020 159 " 3430 4.906 •• II 686 3.394 5.592 3.352 600 4.648 De dam bao khai thac an toan, hieu qua eae md than Id thien va ham Id vdng Hdn Gai, cae md phai tuan thu theo trinh tu khai thac thai, thoat nude, da 6dgc tap doan TKV phe duyet Trong qua trinh thiic hien can ed sii phdi hpp nhjp nhang giufa cac md, dap dng yeu eau san lUpng cung 3463 4841 5786 12.679 7.500 2.452 15.200 6.960 4.561 739 nhu ke hoach 66 thai - thoat nude eda tiing md De md Ha tu keo dai thdi gian khai thac den nam 2018, nham muc tieu hoan thd vao khdng gian khai thac md Nui Beo, nang cao hieu qua kinh te eda toan vdng, rat mong nhan 6dgc su ddng thuan eda cae CO quan chiic nang tinh Quang Ninh KHCNM SO 7/2010* CNKT LO THlfiN 5.000 15.550 2.880 " Ket luan 87.693 45.364 II 1.700 292.013 66.330 2.000 II " 14.000 5.300 Tai lieu tham khao: Cae giai phap khai thac, 66 thai, thoat nude tien tdi ket thde khai thac Id thien vdng Hdn Gai - Vien KHCN Md TKV nam 2009 Cac du an dau tu khai thac cac md: Ndi Beo, Ha Tu , Ha Lam, Xf nghiep than 917 ... Bang Ljch khai thac tdng hgp theo phuang an lua chgn cho cac mo Nui Beo, Ha Tu, XN than 917, Ha Lam'' Mo than Nui Beo Nam KT Dat Than Mo than Ha Tu Dat XN than 917 Mo than Ha Lam Dat Dat Than Tong... hanh khai thac ddng thdi Day nhanh khai thac khai trudng Bae HOru Nghj de ket thue khai thac vao nam 2010, tao dien 66 thai cho khai trudng khu II via 11 (dU kien md rdng 6udc tien hanh khai. .. tae dpng mdi trudng b Trinh ty khai thac - dd thai lua chpn: Trinh tu khai thac - 60 thai hpp ly cho cac md Id thien vung Hdn Gai nham dam bao cho cac md qua trinh khai thac dupc lien tuc, nhjp