Thong tin khoa hoc cong ngh$ mo MOT SO HE THONG KHAI THAC, CONG NGHE KHAI THAC AP DUNG TRONG KHAI THAC QUANG HAM LO TS DAO DANH PHyQTNG Vl$n Khoa hgc Cdng nghi Md Vinacomin Biin djch to tii Hiu "Mdt s[.]
Thong tin khoa hoc cong ngh$ m o MOT SO HE THONG KHAI THAC, CONG NGHE KHAI THAC AP DUNG TRONG KHAI THAC QUANG HAM LO TS DAO DANH PHyQTNG Vl$n Khoa hgc Cdng nghi Md - Vinacomin Biin djch to- tii Hiu: "Mdt s6 phwong in md vfa, chuin bi rudng md vi khai thic quing bing phuryng phip him Id", bin tiing Nga, NXB Nhedra-Matxcava -1972 Hg t h i n g khai thdc b|c chan khay thudn Bin chit vi diiu kiin img dyng Hd thing khai thdc chdn khay thudn (hydng Idn) vdi ching giing Id hd thing md khoang khdng gian dd khai thdc md vd khiu ede bile vdi chdn khay thugn su- dyng cdt ching vd ea d u sdn edng tdc d l khiu gu-cyng Qugng khai thdc cdc "Chan khay" rai ty se xuinq u« 'i ' J > i« - i»pheu rot a duang lo vgn tai Tr««« i,h«A«« i,KA«« «;«« A:i Trong Khoang khong gian da khai thdc dpc thep guang dyng cdt ching d i d d sdn cdng tdc Cd t h i phdn logi qugng hode khdnn nhdn loai audna ta^ S^anrtrdnfdncSfg^ k.i ^A ,^A tr^r^r uhA«r r.ion/»3 khafthdc hode I'umd't Phin oudna trdn sdn cdna tdc nhuno Dhdi od eg d u sdn b i n vCi-na **• Hd thdng dp dyng khai thdc thdn qudng d i e vdi chilu ddy khdng Idn, cho phdp su-dyng vi ching Gidi hgn chilu ddy 2,5 3m, p h i biln ddy -2m Ddc dilm n i i bdt cua hd thing Id cd t h i dp dyng khai thdc cdc thdn qudng d i e du-ng Cdt ching eg ban Id d l ching giu' sdn cdng tdc, ngodi ra, cdn d l ching giQ- khoang ktidng gian khai thdc k i t d u dd vdy quanh thdn qudng d l sdp (j| Cic phuxyng in cdng nghi co'bin 1) Khai thdc thdn qudng khdng phdn logi qudng d Q^^ryg 2) Phdn logi qudng vd 66 Igi dd thdi khodng khdng Qian khai thdc 3) Lyu mdt phin qudng trdn sdn edng tdc Khi thdn qudng cd chilu ddy lôằô