Thong tin khoa hpc cong nghe mo HIEN TRANG VA GIAI PHAP Tl THUAT NHAM NANG CAO TOC DO OAO LO For increasing the driving speed at pres ̂ i t situation, it is necessary to pay much atteimw to the fundam[.]
Thong tin khoa hpc cong nghe m o HIEN TRANG VA GIAI PHAP Tl THUAT NHAM NANG CAO TOC DO OAO LO For increasing the driving speed at pres ^i t situation, it is necessary to pay much atteimw to the fundamental technical issues at each op m ition of the driving link The paper refers to the I m ' technical demands such as proper drilling-blast £7 activities, explosive and detonator utilization i Dilu kien dja chit, nhit Id cdc dge tinh ky thugt eua d i t dd vung md Quang Ninh rit phCpc tgp, cdc via than h i u h i t d i u khdng I n djnh v l chilu day vd gdc die; cdc guang Id thi cdng ngdy cdng sau vd xa ndn vipc di Igi, van chuyin, thong gi6, thodt nudc ngdy cdng ggp nhilu khd khan Trang thilt bj thi cdng diu tu chua ding bp vd khdng tuang xCpng vdi dge dilm ky thugt cua dd Dpi ngu cong nhdn mac du da dugc ddo tgo, cd su-c khoe, dugc quan tdm v l vat chat vd tinh thin nhung sy gan bd vdi nghi cdn nhilu hgn ehl v.v [11], [12] Dd Id mpt s l nguydn nhdn ca ban Idm cho din tic dp ddo Id chua cao Gin 10 nam trude, Tgp dodn Cdng nghiep ThanKhodng san Viet Nam da d i u tu 17 chile may combai phyc ,So ngu'd[ Thdi gian TS PHAM MINH DU-C KS TAO VAN NGAN KS NGUYEN VAN C6NG Vi^n Khoa hgc Cdng ngh$ Md - Vinacomin vy cdng tdc ddo 16 tgi cdc dudng 16 dpc via than, h i u hit cdc rrit' than him Id thudc vung than C uang Ninh tCp Mgo Khd d i n K i e Chdm d i u da dugc tran(j )j logi mdy ndy Tgi mpt s l md may combai da phdt huy due e tdc dyng t i c dp ddo 16 dgt hi?u qua cao, tuang duang vdi \6c dp tidn tiln tgi cdc nudc D O I J A U Tuy nhidn, d nhilu md, Jo dilu kipn dja ky thugt tinii nang ky thugt cua may khdng phu hgp, ndn d i n nay, eh cdn vdi ba may hogt dpng nh I ^g t i e dp ddo 16 khong cao hien nay, vipc ddo 16 mci / i n chu y l u su' dyng bien pha truyin thing Id khoan n l mini Cac cdng dogn chu y l u trcrg ddo Id bang phuang phap khcen n l la: khoan n l , ble xLcl van chuyin ching tgm, ett^ ng c l djnh vd mpt s l cong s l ngudi, Thdi gian \ tdc phy trg khde nhu thodt nudc, thdng gio, dgt ray tgm, n i i ddi m6n6ray hay dudng ray tgm thi e6ng Bing viee rut ngin thdi gian tCpng e6ng dogn tgo tiln d l rut ngin thdi gian chu ky vd d6 Id ca sd d l tang t i c dp dao 16 Thi cong ddo ching 16 bing khoan n l kh6ng phai Id kh6ng t h i ndng eao t i c dp vd ndng suit ddo cdc dudng 16 V i n d l dgt Id phai xem xet mpt each can ban sy dong bp thilt bj, t l chu'c thi cong vd cdc van de ky thuat ca ban {tir hp chilu, tinh ndng cua cdc thdnh phin cong doan din vide SU' dyng c6 hidu qua thulc n l , vgt lieu n l , vgt lieu vd kit c i u ching ) Cac cong dogn chu ky dao 16 bing khoan n l Id Sl ngudiAhIng Thdi gian^cl djnh Kit thuci chu ky S 12m' bing I ua chit lugng t i t thi 2-3 2,5-3,5 1,5-3 hieu (J L a phd dd sd bj suy giam Theo [e ], [7], dudng kinh 16 1,5-2 2,2-2,5 4-6 chf d n c Idn han dudng kinh 1,2-1,8 1.5-2.2 20 thdi rhi i khoang - 7mm vd chilu ddi bua phai Khi thilt k l hp chilu n l D600 pi D6 Id ly^ tgi tgo bidn, khoang cdch giu'a cdc phai chpn dudng kinh mui 16 bidn phai thoa man: khoai l-pang u'ng vdi dudng kinhtjic ^KB hay AH ^ thudng su' dy ng cym lo dpt phd dang ndm (hinh la) Khi eae dudng Id da tilt didn Idn, da nguydn khii, dp ben nen dpc tryc cao ngudi ta SU' dyng thuoc n l ed SLPC cdng pha Idn nhu: Powergel magnum P3151 vdi cym Id dot ptia dgng try (hinh lb) hay xoay oc (hinh le) Khoang cdch vd gdc nghidng cua cym lo dot phd dgng hinh ndm theo [3], [4] dugc gidi thieu tgi bang Bang vd gidi thieu cdc thdng s l ca ban eua mdt s l logi thulc n l thudng su' dyng W h Hinh Hg chieu io dio cic duwig Id di KHCNM SO 3/2012* CNKT HAM LO I r • Thong tin khoa hpc cong ngh^ mo Bing Cic thdng so co bin cua cym ddt phi d^ng ni i Dd kiin c6f 3-4 5-6 7-8 9-10 11-13 14-16 ning Khoing cich giQ>a cic c$p Id ddt phi, m, /11 sinh cdng try chi cua thudc ni I) cm' 250 - 295 0.46-0,48 0,43-0.45 0,40 - 0,42 0,37-0.39 0.34 - 0.36 0.31-0.34 350 - 395 0,52-0,54 0,49-0.51 0,45-0.48 0.43 - 0.45 0.40 - 0.42 0,37-0.39 300 - 345 0.49-0,51 0.46 - 0.48 0,43-0.45 0,40-0.42 0.37-0.39 0.34 - 0.36 thyc t l Theo [5] lugng thulc n l phdn b l cho cym l l tgo rgch chilm 20 - 30% lugng thulc n l — ^ "-o toan guang Khoang cdch ddy l6 cua cym dpt phd A dgng ndm (hinh 1a) che t h i y n l u khoang cdch Idn (>_300mm) thi hidu qua SU' dyng Id mm [3] [5] Chi dgt 70 80%, khoang each giCra ddy Id dao dpng tCi-100 - 200m hieu qua SLP dyng 16 dgt 85 95%, vd sau han cdc 16 phd 150-250mm Khoang cdch lo t^o bien Khoang each vd lugng thulc n l cung nhu thCp t y n l quylt WO - 450 C,55-0,67 C 52 - 0,54 49-0,51 46 - 0,48 D 43 - 0.45 C 40-0.42 djnh r i t Idn d i n sy tci^) bidn Khodng cdch giO'a cd(; \S phu hgp vdi bilu thCpc: « ^ A o /