w Thong tin khoa hpc cong nghe m o NjMdl s o GIfil PHfiP KY T H a T CONG NGHE NHAM NANG CAO NANG SUAT LAO DONG, GIAM GIA THANH KHAI THAC TAI CONG TY THAN QUANG HANH - TKV Quang Hanh Coal Company is one of the mining units having difficult mining conditions with scattered mining areas and complicated seam conditions and as a result, the longwall output and the mine capacity Is low, the mining cost is high For solving the above mentioned difficulties, Quang Hanh Coal Company has coordinated with IMSAT In studying and proposing some technological solutions suitable to the geological conditions of the company to Increase the production efficiency as well as the safety level and improve the working conditions for the workers LDatvindd Cong ty than Quang Hanh-TKV la mpt cac den vi c6 dieu l36 114 140 70 25-30 84 2,6-2,7 3,1 17 30-40 347.804 339.414 - KHCNM S6 7/201S* CNKT HAM LO ^^A w Th6ng tin khoa hpc cong nghe mo 2.3 Nghien ciru de xuat giai phap ky thuat cdng nghi huy dgng toi da tai nguyen vao khai thac 2.3.1 Nghien cuv giai phdp ky thuat cong ngh$ khai thao tris luvng than nim cac tru bao vd suol tai khoang sang mo NgS Hal Ket qua dinh g i i cho thiy, tpi khoing sang Nga Hai, trir luang than phln bd c i c try bao ve su6i tuang d l i lan, khoang 5,2 trieu tin, bang khoang 16% tdng tru- lupng huy dpng toin mo (33,2 tri$u tan), t i p trung tai c i c via V4, V5, V6, V6a, V7, VIO, V12, V13, V14 Phln trO lupng niy I I hoin toin tin cay, n l u dupe huy d6ng vio khai thac thai dilm hien se t i n dyng dupe c i c cdng trinh khai thdng hien cd, keo dai tuli tho mo, giam t l i da mire dp t i n that t l i nguyen v l nang can hieu qua d i u tu x i y dung mp Tuy nhien, phln tri} lupng niy kho ed the I p dung cac sa dd eong nghe khai thic dieu khiln da vach bang p h i hda toan phln th6ng thuang Kinh nghipm khai thac via than nim dual cac d l i tuang ehira nude ndi ridng, dudi eic cdng trinh can bao vp tren b l m|t ndi chung, tpi mpt s l nude tren t h i gidi nhu Nga, Ba Lan, oho thiy, de khai thie hieu qua v l an toin cie dli tuang via niy, edng nghp khai thie dieu khiln vach bang chin Id la t l i uu nhit Cic via than pham vi try bao ve suli ed chieu dly thay d l i tir 0,8 + 4,71m, trung binh 2,35m, gdc doc via tir 17° + 42°, trung binh 30°, phij hpp vdi tirng dilu kien via mpt s l sa d l edng nghp khai thac dilu khiln vich bang chen 16 dupe d l xult gom: - Sa c6ng nghe khai thac cpt d l i theo phuang khiu h i t chilu dly via, chlng giu' 16 chp bang vi chlng thuy lye (hcac CGH), khiu guang bing khoan no (hole khiu bing miy), dilu khien d l v i c h bing chdn 16 (toin phln (hinh 4) hope tirng phln) I p dyng cho dilu kipn via dly din 3,5m, gde doc den 35° [5] Hinh So ad cdng ngh$ khai thic cdt dii theo phuang, chin 16 toin phin Jl KHCNM S6 7/2015* CNKT HAM L Thong tin khoa hpc cdng nghe mo TVdngchan bao ve jru bao v6 2-s-4m Tu-dng chan bao v$ Tru bao vd 2-5-4m Hinh Sa dd bd tri guong Id cho khai thic tin thu tru bio ve a Guong Id cho tat bao v$ vi Id cha ting du-Oi thing tuyin (a < 30°); b Guong Id cha tnj bio vd vwat tnfdc Id cha ting dual tir 15^ 20 m (a = 30- 4&') - So cdng nghe khai thac chia Idp nghieng, xuat da du'O'c tinh toan, xem xet ky lu-dng, se khau theo trinh ti/ ldp du-di tru-dc, Idp tren sau, mang lal higu qua cho Cdng ty ca v l ky thuat, chong giiJ td chg' bang vi chdng thuy lu-c (hoac kinh te va an toan Cac kit qua 6h xu^t se la coco' gidi hda), khau gu-cng bang khoan no sd dij- lieu quan trgng cho Cdng ty than Quang (hoac khau b^ng may), Sihu khiln da vach bang Hanh- TKV djnh hu-dng xay dyng Ig trinh Chen Id toan phan, dp dgng cho dilu ki?n via ap dyng tai do-n vj./ than day >3,5m, gdc doc 35' ra/ lieu tham khao: - So" cdng ngh$ khai thac lien gu-o-ng ho|c [1] TS Tru'ang DCFC DU- 2010 B^o cSo "Nghidn ci>u li/a chon cdng nghe ca gidi hoi khai thic cic via cOt dai theo phu'cng, chen Id toan phln, vdi gu-cng Id chg' chdo hoac chia b|ic chan khay [5] than mdng ( 10 - 20m, tu'ong LPng vdi Id cho" cd chilu dai khai thic tai md NgS Hai, Cdng ty than Quang Hanh, tu' 100 ^ 140m, tru' lu'O'ng tn^ bao vg cac Vi$n Khoa hpc Cdng nghd Mo - Vinacomin; du'dng Id chilm tCr 10 -^ 14% tong trO lu'O'ng [4] 2015 Bio cio "Nghidn cOii kha ning ip dtjng huy dgng cua ca ting Tren co' sd dd, Vign Khoa cong ngh$ khai thic Id chg chdng giO bing cdt thdy hgc Cdng nghg Md da d l xuat giai phap khai It/c dan cho cic via than diy trung binh gdc ddc tCr thdc khai thac cdc try bao v0 ddng thdi vdi 35-45P t^i khu md NgS Hai, Cdng ty than Quang Hanh qua trinh khai thac Id cho" mu'c du-di TOy theo vi lip TKBVTC cho mdt khu vuc cu thi", Vi§n Khoa dieu kign gdc die, gu'O'ng Id che cd the b l tri hpc C6ng ngh0 Md - Vinacomin; XL.S i " / u- '"_.ã' ^"* ono\ k ô*ôô [51.TS LeDCfc Nguydn, ThS Trin Minh Tien, KS thang tyyin (kh, goc doc den 30°), ^oac vuot so ^^^^^^ ^^^ 9^^^ ;,_.^ ^^ ^^.^ • vdl lo chp bdn dual (khi goe d i e tren 30° ddn , ^ „ j , ^ j „ ^ „g^^ ^^,p ^^ „ ^ l ^ ^^3, ,^^^ ^^^^^j^J 45°) Sa dd b l tri guang khai thie try bao vp the Itiang than nim dudi su6l tai cic md him Id vung hien tren hinh Quing Ninh, Thdng tin Khoa hoc Cdng nghd Md so -2015; K i t luan [6] Bao cao ling kit d l tai (2014): 'Nghien cCnj Xult phat tir nhu elu thyc tiln, Cing ty than Quang Hanh v l Vien Khoa hpe Cdng nghp Mp xuit ip dung cic glil phip khai thic khdng di lai d l phli hpp nghien ciru d l xult mpt s6 giai " ^ "^"/^ "* "9= "'^ 'r°"3 « « " W " * * * / '™"9 phap ky thult cdng nghp phu hpp vdi dilu kien **">• f^ " J f ' tinnghlfng vOng Quing Ninh: Wen cie khu vuc via than tpi mo Cao giii phip d l l^""^ " ' ^ '=*"9 " " * Mo-Vinacom,n KHCNM S6 7/2015* CNKT HAM LO ... [5] than mdng (