Thong tin khoa hoc cong nghe mo CHONG GUjr GIENG BlTNG TRONG DA TRAM TICH THAN VUNG QUANG NINH More and more, the underground coal output has increased to the Increasing coal demand for the national e[.]
Thong tin khoa hoc cong nghe mo CHONG GUjr GIENG BlTNG TRONG DA TRAM TICH THAN VUNG QUANG NINH TS PHAM MINH DU'C More and more, the underground coal output Vipn Khoa hgc Cdng nghp Md - Vinacomin has increased to the Increasing coal demand for the national economy Up to now, not only inclined shaft twins but also vertical shafts have been used for developing underground coal seams Supporting works for the vertical shafts driven through the sedimentary rock in Quang Ninh coal basin is a very essential task for ensuring labor safety and increasing labor productivity as well San iLpgng khai thac than bang cdng nghp ham Id ngdy cdng tang Trong nhu-ng nam dau sau lap Tgp dodn Cdng nghidp Than - Khodng san Vipt Nam, CCP sau 10 nam san lu-gng than Igi tang g i p hai l l n so vdi tru-dc vd din san lu-gng khai thae than da gan dgt 50 tripu tin Dk ndng eao san lu-gng khai thdc than bang cdng nghp ham Id, den nay, phan Idn tru- lu-gng cd t h l khai thdng, md via JDang Id bang hiu nhuda egn kidt, nhieu md da su- dgng phu-ang phdp md v[a bang giing nghieng Vgt lidu ching giu- thdng dgng cdc giing dCpng hipn chu y l u Id bd tdng lien khli, be tdng cot thep, be tdng phun, neo be tdng elt thdp, khdng chong Mdt s l giing da vd dang xdy dyng tren vung md Quang Ninh nhu- Mdng DLPang tru-dc hay 03 giing dang xdy dyng tgi md than Ha Lam hidn ddu du-gc chdng giu- chu yeu bang vd chong be tdng cot thep hogc be tdng lien khoi vdi chieu day phg thudc vdo dp lye ndn ngang, dja chdt thuy van, thay doi tu-0,3 - 0,5m D l dam bao san lu-gng than cung c l p cho nln kinh t l dit nu-dc, ngodi vide xay dyng cae cap giing nghidng, Tap dodn Vinacomin dang tridn khai xdy dyng mpt s l cgp giing dCpng khde tgi nhu-ng nai cd dilu kipn dja chat vd mgt bang phu hgp nhu- Nui Bdo, Khe Chdm vd tu-ang lai khdng xa se cdn can nhilu giing dCpng 6k khai thae than d cac mCpc sdu Cdng nghp thi edng giing dCpng vdi cae edng dogn to chu-c chu ky khdng khac so vdi thi cdng dao giing nghieng hay Id bang Khac bidt ea ban Id thilt bj thi edng vd trinh dd dpi thg, mCpc dd du-ge dao tgo v l tay nghi Cdc giing dCpng hay Id bang qua trinh khai ddo deu phai thi cdng xuydn qua cdc Idp da trim tich than vdi c i u true dja ehIt vd tfnh chit dja ea hpe khac Nhieu dogn Id (giing) phai thi cdng qua cac vung da tai rdi, phay phd, nhu-ng phan Idn dao xuydn qua nhu-ng Idp dd cd dd b i n ndn dpc trgc eao nhu|ae Idp eat kit, bpt kit, sgn hay cupi kit Hinh Thi cdng phan mieng gieng Gid thdnh thi cdng giing dCpng ma dd kit c i u ching, vat lipu chdng giing ddng mdt vai trd chlnh va Idn hgn nhieu so vdi ehi phi nhan edng Vi t h l , tinh todn, lya chon vat lieu va kit c i u chong giing can du-gc xem xet mdt each nghiem tue, khdng nhu-ng ch? v l ky thugt, an todn ma ca v l kinh t l 11/2011* XAY DUNG CONG TRMH NGAM VA MO Thong tin khoa hoc cong nghe m o Vd chong giing dirng chong trw(yt I& di vCing biin d^ng deo Ap lyo tdc dpng ldn vd ching giing phg thupc rat Idn vao dp b i n ndn cua ede Idp dd ma giing ddo qua Od thdnh giing ed t h l I n djnh dp bin eua da thoa man quan hd (1) = Khi hp s l lye d i y hdng X _ J/ >0,5 l-/y OoK.p ^ ^^nYnHnp (1) Khi hp s l lye diy hdng X= ^' 10 IV Khi Re < MPa dd x l p vdo logi IV mu-c dd In djnh Trong dd logi I, vd ching bd tdng khdng ein tinh todn md chi tilp nhdn s l lipu (bang 3) Bdng Chieu sdu vimg tinh todn, m Oen 500 >500 Chiiu day vd be tdng, mm theo gdc doe l&p dd Din 3^ L&n han 3o 250 200 300 250 Trong da nhdm on djnh II, HI tinh toan nhu-ng khdng du-gc nhd han gia tn tgi bang D i i vdi vd ching be tdng phun, chieu day vd ching dygc xdc djnh theo bang Bdng Chieu sdu vung tinh todn, (m) O i n 500 >500 Chieu ddy vd be tdng, mm theo gdc doe l&p dd Din 3^ L&n han 3^ 80 120 150 100 Chilu day Idp bd tdng phun khdng nhd han 150 mm d chilu sau d i n 500m va 200mm d chilu sau Idn han 500m Trong tru-dng hgp ching hdn hgp thi chilu ddi neo U l l y bang 2m, khoang each giu-a cac neo lly bing 0,7 U Trong khu vyc Idp da I n djnh theo logi IV, su- dgng vd ching tubing, BTCT, vd chong nhilu Idp, va n l u da I n djnh tygng ddi thi sudgng vd ching be tdng tgi chd Vd ching be tdng phun ching phong hda, gia c l lly bang 50mm./ KHCNM s d 11/2011* XAY DUNG C N G TRINH NG.^il^ya\MK Thong tin khoa hoc cong nghe m o Tii lieu tham khio: Ld Van Cdng, Phgm Minh DCPC- 2010 Nghien CCPU cdng nghd thi cdng gilng dCpng vung trim tich than Neogen khu vyc Dong bang Sdng Hong- Bdo cdo tong kit d l tai Bd Cdng Thu-gng Phgm Minh DCPC, On djnh vd chong gilng dCpng xay dyng vung dit da khdng nguyen tho tgi khu vyc Quang Ninh Tgp san KHCN Md, Vidn KHCN Md thdng 9/2011 Jan Kostrz, Glebienie szybov\/ metodami specjalnymi, 1964, Wydawnietwo "Slask"Katowiee Jan Kostrz, Budownictwo gornieze podziemne- Czesc II Glebienie szybow i szybykow1968, Wydawnietwo "Slask"Katowice CunbHeHKO \Op\AV\ AneKcaHflpoBHH, CoBepiueHCTBOBaHne KOHCTpyKum/i Kpenn eKBa>KMH dojibujoro AnaMeTpa n rexHonornn ee B03BefleHMfi HoBonepKacoK l/l3AaTenbCTB0 "Ha6na" 2003 BopiAeBCKMM C B JleenT B B BypymnH fl fl SKonepuMeHTanbHbie ncneAOBaHUfl npMKOTypHOM 30Hbl UJaXTHblX CTBOflOB B 30HaX noBbiLueHHbix BOflopnpnTOKOB - 2010 Internet » »'' KynM6a6a C.B XoxnoB B B flnaMeip BepiMKanbHbix ropHbix Bbipa6oTOK KaK chaicrop, BnnflK)u^Mi?i Ha oieneHb MX HapymeHHOciM npu noApaSoTKe YKP H M M M H A H Y r floHOMK YKpanHa ToueB fl B CxaciOKA.H yciOMMUBOCTb BepTMKanbHbix ropHbix BbipadOTOK B ynpyroBflKonnacTMHecKoii Maccneax c nopucToii CTpyicrypoM riaHOB A fl PynneHOMT \0 M JlndepiviaH fopHoe AaBnenne B OMMCiHbix M noAroTOBMienbHbix BbipadoiKax, FocroDTexMSAaT 1959 10 CMeecKMi/i B H Bon>KCKmi B M TuMOcfjeeB O B LUnpoKOB A fl KpaBHOHKO T M MyKan B K SxuHroB C M LLIiaHroBajq Kpenb, M3AaTenbOTBO "HeApa" MocKaa 1965 11 Thilt k l to ohu-c thi cdng gilng chlnh, gilng phg va gieng gid - Dy an khai thae du-di mCpc -50 m md than Ha Lam- Vipn Thiet kd Nam Kinh, Trung Quoc 2008 12 Thilt k l to chCpc thi cdng gilng dCpng vd ode du-dng Id tilp can Dy an khai thac du-di mCpc -50m md than Ha Lam- Cdng ty Xay dyng so than Trung QuIc - 2009 13 CHMn 11-94-80 mm.' M bao va dieu khien qua trinh hien dang ho mo Kit luan Quan trie djch dpng bd md cho phdp xdc djnh cdc thdng so djch chuyin vd biln dang xay khoi da bd md mdt cdch djnh lu-gng D l dam bao an toan cho qua trinh khai thae ein dam bao t i c dp djch ehuydn eua bd md nhd hgn t i c dp djch ehuyin gidi hgn eho phdp cua bd (Vqt < Vgh) Khi van tie djch ehuyin eua Ld Xuan Thu: Hu-dng (Tidp theo trang 41) ddn nghien cu-u va tinh toan on djnh bd md than Id thien khli da bd md gan dgt van t i c Viet Nam- Vipn Nghien CCPU djch ehuyin gidi hgn, ein dp Cdng nghp Md- Ha Ndi 1992 dgng giai phdp edng nghp thay Vipn VNIMI: Quy tac doi trinh ty ble xue, dCpng boc dam bao on djnh bd md Id xue tgi khli dd, tang boc xue thidn (ban tiing Nga) Xanh khli day, nham du-a bd md v l Petecbua-1998 trgng thai on djnh mdi vdi hp Le Xuan Thu: Trygt Id bd s l on djnh n > 1,15./ trg via Mgo Khe va giai phap Tii lipu tham khio: dieu khiln dam bao I n djnh Vipn VNIMI: Hu-dng d i n phu-ang phap quan trie biln Vipn Khoa hpc Cdng nghe Md dgng bd md vd bai thai, Phan - Ha Ndi - 2006 KHCNM s d Umil* XAY DlJIISfG CdMG TRINH N G I M VA II'M;!: >ir\^ f ^i7f>^j / tich k i t qua quan trie vd dy bao on djnh (ban tiing Nga)Ldningrat 1987 M6 ... than Ha Lam- Vipn Thiet kd Nam Kinh, Trung Quoc 2008 12 Thilt k l to chCpc thi cdng gilng dCpng vd ode du-dng Id tilp can Dy an khai thac du-di mCpc -50m md than Ha Lam- Cdng ty Xay dyng so than. .. chdt bam dinh ed du chieu day va kha nang bao phu than neo Ddn nay, chu-a thay cd tai lieu gidi thieu sudung neo chat deo cot thdp hay cac logi neo Trong dd: ong phong, neo ong hd 6k chdng giu- gieng... n 500m va 200mm d chilu sau Idn han 500m Trong tru-dng hgp ching hdn hgp thi chilu ddi neo U l l y bang 2m, khoang each giu-a cac neo lly bing 0,7 U Trong khu vyc Idp da I n djnh theo logi IV,