Thông tin tài liệu
Thong tin khoa hpc cong nghe m o ^DE XUAT MOT SO GIAI PHAP CONG NGHE KHAI THAC TOI DA tru' lUtfng, tai nguyen than haim Id Results from the analysis of the undeground coal minTS.LEeCfC NGUYEN ing projects in Quang Ninh area show that, total coal reThS, TRAN MINH TI^N KS DLfONG Dire HAI sources are bearing losses from mining activities or due to KS NGUYEN eCfC TRUNG a great unmlned coal resoun:es Therefore, the research on the technological solutions for maximally mining under- Vl$n Khoa hpc Cdng ngh$ Md - Vinacomin ground coal resources from coai ribs protecting the surface Bien tap: Dio Hong Quing construction buildings, as well as from the thin coal seams is an essential work, contributing to the increase of the investment efficiency of the mining projects and saving nonrenewable coal resources Hi#n nay, hau het c4o mo h i m io dang k^t thiic khai thac tru' [iKjmg than phan nong va quy hoach khai thac xuong sau hon D l khai thdc xu6ng sSu, hku het cSc mo phai xay dg-ng h§ thing khai thong moi, iam tang suat dau tu' Ngoai ra, khai thac xuong s^u, hiing loat cic y l u to dja chit - ky thuat mo tro nen phCfc tap hon, nhu' ap iyc mo Ion, sv gia tSng mo, cung dO v?n tai tang , d i n den tang gia khai thic Mat khac, kit qua phan tich chi tilt tris lu'ong dia chit (TLBC), tru luong huy dong (TLHB) va trO luong cong nghiep (TLCN) 13 du 4n mo l*n tai c i c c6ng ty khai thSc than ham 16 (gIm Mao Khe, Vang Danh, Nam H/llu, Uong Bi, Hi Lam, Nui Beo, Ha Long, Thong Nhat, Duong Huy, Quang Hanh, Khe Ch4m, Mong Duong) [1] cho thIy: - Ting TLDC duoc dua via xem xet huy dong c4c dy an mo la 1.258.496 ngan tan - Ting TLHD v^o cac du an la 924.169 ngan t i n , chilm 73,4% t i n g TLBC xem xet TLDC chua duoc huy dpng la 334.327 ngan tin, chilm 26,6%, chu y l u nam tru bao ve cac cong trinh, a l l tuong b l mgt nhu nh4 cCra, khu dan cu, m|t bang san c6ng nghi$p, moong lo thien, song, suli (212,3 trieu tan, chiem 16,9%), va mOt phIn nam cac khu vuc via mong ( O o ^- CM to o s o to CD CO 00 • CO C-1 CM p' O) n o O) IO S p S •? CO O (3> f- 00 ^ O) CD o ^ ^ •w • r-' to CJ CD CD o c;) en S CO Tj- ^ ^ * r- c * CD CO CD CO CN CO CO CO CM - ^ C3 CD Tf ?^ oo TLB Cchua « si CO CM CO Slog in CM gj tfl eo o 00 CO A O IO so -ra c ãQ.5 "Đ.0 T3 ãra — o -(0 (0 f ^ ™^ -^ O •flj ãô n E ^ in s to ão c ''^ •^^ c ^^ c Z -CD c b (0 O £ (O n •a u co- c rn u> •o E =1 CO kllC SM S6 8/2015' CNKT HAM LO ^ ^ -o E s CD CO CD c -o -S e Q CO CO -01 •CD a CO m • « • O) E - O F n, • - •CO •m CM ro n T- in oi o s in •o E E CD s CO : CN _ _ s 2: o o •J- CO o c CO CO S c;i IO o E •c d I u t u Gia thSnh tiSu thu BQ - COng ngh0 thOng thu6ng - COng ngh§ ch6n 10 20 000 2.000 41 506,8 1.342.838 1.263.812 1.600.000 DAKT him Id Niil Beo PA khdng chen Id 30.777 Difin 61.101 30.777 20.324 2.000 33 301,5 1,041.207 888 998 1.271.701 170.762.840 58.023.329 96 668.844 50 321 840 701.489 317.799 4.383.690 - 30.777 2.000 23 5.301,5 888 998 888.998 1.271.701 34.946.163 28 074 115 6.872.048 2.695.284 4.176.764 -206.926 KHCNM SO 8/20L5" CNKT HAM LO w Thong tin khoa hpc cong nghe mo mo Mao Khe, c6 tong TLBC tCf mi>c -400/-150 la 154.243 ngan t i n , TLHB la 81.160 ngan tin, TLCN la 57.774 ngan t i n (chi chilm 37,5% TLBC) Theo tinh toan, n l u co the khai thac dupe khoang 20.000 ngan t i n than td cac tru bao vp bang phuong phap chen 16, vcf\ gia tieu thg khoang 1.600.000 dIng/tIn (da duoc tinh toan phuong an thu nghipm cong nghp khai thac chen 16 tai via 9b khu Canh Nam mo Mgo Khe Vien Khoa hpc C6ng nghe Me VInacomin lap), thi gia tieu thg chung eua du an se la 1342.838 dIng/tIn, tong doanh thu ban than dat 170.762,8 ty ding, lpi nhuan r6ng dat khoang 56.320,5 ty ding, tang 11.905,2 ty ding so voi du an da lap (44.415,3 ty dong) Trong trudng hpp do, tuli thp mp c6n duoc kep dai them 10 nam Mpt vi dg khac la du an khai thac mo ham 16 Ngi Beo, eo tong TLCN la 51.101 ngan tin Trong d6 c6 20.324 ngan t i n dupe khai thac blng Chen 16 Kit qga tinh toan cho thIy neu kh6ng hgy dpng phin trCi' lupng khai thac chen 16, tuli thp eua du an se giam tu 33 nam xglng 22 nam, hi#g qua kinh t l cua du an se giam xuIng, lpi nhuan r6ng giam 207 ty ding Bang so sanh hipu qua kinh t l cua mpt so du an m l v6i phuong an ap dgng hoac kh6ng ap dgng cdng nghe khai thac chen 16 Mat khac, de viec ap dgng cong nghe khai thac Chen 16 dst dupe hipu gua t i t nhIt ca v l mat kinh t l va k j thuat, viec lua chpn cac giai phap v l phuong phap chen 16, vat lipg chan 16 phg hpp, vua dam bao hieu qua chIng giu', vua tilt kiem t i t da chi phi la h i t sue quan trpng Vi dg, truong hpp tren be mat d|a hinh la nhCrng c6ng trinh, doi tupng ma yeu clu bao ve b l mat khSng cao, nhu cac doi tupng chua nuoc thong thu6ng, cac khu vuc nha cua dan sinh e6 qgy m6 nho, r6i rac, thi co t h i ap dgng cac giai phap khai thac mpt phan via than nhu' khai thac m|t phIn chilu day via, khai thac d l lai dai trg bao v$, hojc cac giai phap nhu khai thac vol Chan 16 mpt phIn via than (khai thac chen 16 mot lop, Chan 16 tCrng phIn theo cac dli tru bao vp da vach eo ban) C6n d l i vol cac via Hinh Sa dd cdng nghi khai thic bic chin khay si> dung chin Id a,b - Chen Id to^ phan theo phuong via: c-taodcdiidA ch6n theo phuong via: d-tao cac dai da chen theo d^ die via Hinh SBCN khai thiccdtdii theo dd ddc khai thic toin bd chliu diy via chin Id theo hufdng tCr dudi lin Id xuyin via thong g/6; Id thuvng thdng gid: Id doc via thdng gid di: Id doc via thdng gid ph&n tkig, Id doc via van tai phan tang: Id thuximg v$n tai than: Id xuyen via v^n til than: 8.16 dpc via van tai than
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