w Thong tin khoa hoc cong nghe mo AP DUNG PHUDNG PHAP NO MIN VI SAI PHI DIEN TRONG DAO LO XAY DUNG CU DAN In the year of 2010, Institute of Mining Science and Technology (VI MS AT) has developed the a[.]
w Thong tin khoa hoc cong nghe m o AP DUNG PHUDNG PHAP NO MIN VI SAI PHI DIEN TRONG DAO LO XAY DUNG CU DAN TS LE VAN C6NG In the year of 2010, Institute of Mining Science and TS PHAM MINH DO'C Technology (VI MSAT) has developed the Viin Khoa hge Cdng nghg Md - Vinacomin application of the non - electrical delay detonators together with the drilling and blasting method for the roekaway driving at underground coal mines under the mining conditions of explosive dust and gas such as Quang Hanh, Ha Long, Uong Bl, Dong Bac and Vang Danh In this paper, the authors introduces some Initial application results of the domestic non - electrical delay detonators to the roekaway driving operations at underground coal mines belonging to the Vietnam National Coal Mineral Industries Group (Vinacomin) hyp ly, dudng khdng nhd truyin sdng theo hudng djnh I.Dptvdndd No phi didn Id phuong nhlt, lopi dOt phd su' dung, san dd Idm tdng hidu qua phd phdp no tidn tiln da duyc lopi phuong tidn n l vd dit dd, dong thdi, sir kilm djnh tai ede edng trinh n l (thuoc n l kip), v.v Qua kinh dung kip vi sai ndn cdc 16 no 10 thidn ede edng trinh ngim nghidm no tpi ede edng trudc tpo thdm mat thodng, vi giao thdng thuy dipn trinh thuy dipn vd ngodi t h i tang hd so sir dung Id Kit c l u mpng no su' dung Phuong phdp ndy sir dgng nude eho thly, sir dgng kip vi sai phi dipn eho kit qua kip vi sai phi didn bao gom: kip vi sai phi didn ddy truyin tot Tir thye t l dd Vidn Khoa no phi dipn a Kip vi sai phi dien hoc Cdng nghd Md-Vinaeomin Trong kip ehira mOt luyng Hidn tai cdc don vj (Vidn KHCN Md) dd nghidn thuoc no nhdm I (thudng diing khai thde than ham Id thuOe CLTU dp dung phuong phdp azit ehi) mOt bO phdn trd no Tap Dodn Cdng nghidp Than no phi didn ede md ehi vd mOt bO phdn ngdn edeh Khodng san Vipt Nam than ham Id bdn ddn ddt bat bang (Vinacomin) dang dp dgng GiO'l thipu phu'ang nhdm hope kdm nham muc phuong phdp no didn vdi dieh an todn eao ed tde dung kip didn lopi MS (ed t h i tire Phap n l phi dipn thdi hay vi sai) eua Trung Ope dilm noi bpt eua edng ngdn bit k l mOt luyng tmh Quoc, dO tin cdy khdng eao nghd n l Id sir dgng kip n l vi didn ndo ed t h i phdt sinh trdn thudng hay phai xu ly sai phi didn Hd thing kich no ong tin hidu b Day no cam, hope phai no Idm nhieu kip vi sai phi didn Id qud trinh Ddy n l ed dudng kinh dyt eho guong dd t i n truyin tin hidu n l ong rat nhilu thdi gian vdo khdu nhya Ong ed c l u tpo hai Idp ngodi (4,8 -^ 6,2)mm, toe dO nd nap no vd hipu qua no phia duyc phu mOt Idp (6500 -;- 7200) m/s, kha ndng thap bOt hopt tinh, duyc kieh chju nude 12 gid vd chju duyc nhidt dO (-28 ^ + 50)°C tir No Id mOt nhu'ng no, Idp bOt hopt tinh ndy se d i n gid khdu quan trpng ehu ky chuyin hod rit nhanh, lan Ldi day ehua thulc no Ten thi cong ddo ehlnp Id dae bipt truyin vdi tie dO 2000m/s vd (Tetraetyl Nitrat C5H8(ON02)4) dat dd ran chac vd dudng truyin tin hipu din kfp no Khi 16 eo tilt didn Idn Dk hieu qua khdi n l , sdng tin hipu no hope (Petn) hope Tetrin no t i t can rat nhilu y l u duyc truyin tir Id khdi no (CH2(_N02)3NCH9N02) vdi soi to nhu hO chilu khoan no vd theo thir ty se truyin d i n ehf ddn hudng vd Id lanh vai min, luyng thulc no don vj tat ca cdc Id Chinh sy lan bin chju va dpp, chju kdo KHCNM SO 1/2012* CNKT HAM LO w Thong tin khoa hoc cong nghe m o Bdng D$c tinh kp thu$t cua mgt s6 lo^l ddy nd Lo^iddy Nw&e sdn xuit Ddy no chju nudc (Nga) Khi ning chfu Khi ndng chju nhiit, °C nw&c,h ^ ngodi eua ddy (mm) Thudc n6 Idl Tdcdg nSm/s 6,1 Pent 14g/m 7000 12h/sdu2m - ^ + 65°C Pent 3,6g/m 6500 24h/sdu m -42-H +50°C Cordtex 3,6 (Australia) Cordtex 3,6 (Australia) 4,65 Pent 10g/m 6500 24h/sdu 2m -42t+50°C_ IDL chju nudc 4,65 Pent lOg/m 6800 24h/sdu 2m -42^ +50°C 5,4 Pent 12g/m 6500 12h/sdu 2m -42^ +50°C Ten 5g/m 7000 12h/sdu 2m -28^ +50°C Ddy n l chju nude (TQ) Ddy n l Quic phbng 5g/m Ddy n l Quic phbng 10g/m 5,8 Ten 10g/m 7000 12h/sdu2m -28^ +50°C Ddy n l Quic ph6ng 12g/m 6,2 Ten 12g/m 7000 12h/sdu2m -28^+50°C Riocord (USA) 3,82 Pen 6g/m 7000 12h/sdu 2m -35^ +60°C Dk ndng eao dO I n djnh moi trudng nude, cde Idp ngodi duyc phu bdng sdp vd Idp ngodi ciing duyc phu mOt ldp vd Polielovinin Theo edng suit, ddy n l duyc chia Idm lopi, lopi edng suit nhd Idi thuoc tir 2, d i n 6g/m; edng suit trung binh 10 - 20g/m vd edng suit eao tir 10-^20g/m MOt s l lopi ddy no duyc gidi thidu tai bang c Cic phy kign khac Mdc ehCr J d l noi hp thing truyin tin hidu no vdi ddy no muon kit hyp hai hp thong khdi n l ndy vdi nhau, mdc bdng nhya, ed mdu khde nhau, bilu thj mirc dO n l chdm d i n miligidy The mdu, trdn dd ghi s l vi sai vd thdi gian vi sai danh djnh Ddy truyin tin hidu MOt d i u eua Ing ddn tin hidu duyc kpp chdt vdo kip n l nhd mOt nut kin, Trong kip nd ed mOt Ing bdn ddn 6k truyin cdc didn tich, tich tu Ing thdn cua kip n l (md khdng gay tia lua dipn) d i u duyc bjt kin 6k tranh hoi I m thdm nhpp vdo, g i n vdi mdc J vd the ghi thdi gian vr sai Day truyin tin hidu cd c l u tpo Id mOt Ing nhya, mdt phu mOt Idp bOt chit nl Trimetrilen (3H6N3(N03)3) vdi mpt dO trdng 17 mg/m Wu nhugc diim cua n6 phi dl^n: * An toan T i t ca cdc c l u kidn eua hp thong kich no phi dipn d i u duyc lap rdp s i n nhd mdy, an todn hon so vdi cdc c l u kipn phai eat vd n i i ngodi hipn trudng 6ng tin hipu khdng bj kich n l bdi sdng radio t i n s l eao, didn tmh hope didn Ipe, ngpn lua, ma sdt hay va ehpm cd t h i xay d ngodi bai n l Tuy nhidn, cdc bO phpn c l u thdnh cua kip n l mpi lopi hd thing kieh n l d i u cd t h i bj t i n hpi n l u thao tdc khdng dung cdch * Dan gian vi linh hopt Cde chi tilt cua hd thing kich n l phi didn duyc k i t n i i vdi mOt each don gian, nhanh chdng 6k thyc hidn cdc ydu c l u n l tir co ban d i n phue tpp Cdng tac huin luyOn vd thyc hdnh nhanh chdng mpng d i u n i i don gian, cdng nhdn dd tilp thu, d l thyc hanh Cdc i l n n l d i u n i l nhanh (trong khoang KHCNM SO 1/2012* CNKT HAM L O phut cho mOt guong 21,5m^ so vdi it nhlt Id 15 phiit d i u mang no su dung kip vi sai dipn cung dilu kipn gilng nghidng Quang Hanh) Kich n l bdng mdy no thdng thudng * Phi dipn Khdng sy cham didn, mat didn ndn cde guong Id dii bj am, nudc dOt vdn d i u nii tot; * Kich no tu diy lo Vdi hd thing kich n l phi didn cd ttil ttiyc hidn duyc vide kieh no da vi sai tir ddy l l khoan *Khdng gidi hpn thdi gian visai Khi vi sal dudi Id duyc kit hyp vdi vi sai tren mpt, bang phuong phdp d i u noi don gian cd t h i d i u n i i mpng no cd s l luyng khdng gidi han cdc s l vi sai lien tilp *Giam thieu hiin tugng cXtt day v l n 6k 6u\ day 16 h l u nhu cd t h i duyc lopi trip, ly giai, cac kip no vi sai nhpn duyc tin hipu kich n l trudc cOt thulc phdt no khd lau day no duyc gia cdng tir vat lipu dai dpng Ing co dO b i n chong va dap chlng dirt dirt va chong am ^^^o^ Thong tin khoa hoc cong nghe m o w Bdng Chl tiiu caly dit dd tai gwang chinh vd phy- Quang Hanh Loai nham thach CuOi, Spn k i t Cdt icet BOt k i t Sdrket Do ben ndn a„ (kG/em') 809,03 730,41 441,15 249,76 Dg ben kdo (Tk (kG/cm') 125,79 87,11 51,01 27,62 Gde ma sdt