Tap chi KHKT Mo Dia chdt sd29, 01/2010, tr 70 75 CO GI6I HOA NANG CAO TOC DO DAO G I E N G NGHIENG TRONG CAC MO THAN H A M L 6 VUNG QUANG NINH PHAM THI N H A N , Trudng Dgi hgc Mo Dia chdt Tdm tat The[.]
Tap chi KHKT Mo - Dia chdt sd29, 01/2010, tr.70-75 CO GI6I HOA NANG CAO TOC DO DAO G I E N G NGHIENG TRONG CAC MO THAN H A M L VUNG QUANG NINH PHAM THI N H A N , Trudng Dgi hgc Mo - Dia chdt Tdm tat: Theo quy hogch phdt trien nganh Than, ty li khai thdc than bdng cdng nghi hdm Id mpt tdng vd din ndm 2010 se chiim 50 -^ 60% tdng sdn lirgiig ciia Nganh Ki hogch eiia TKVdu kiin dgt 60 -^ 65 trieu tdn than vdo ndm 2015 Nhir vdy din ndm 2015 nganh Than cdn phdi ddo khodng 748,8km Id cdc logi, do, khdi lirang Id da chiim 25% tdng so met Id luy tuang duong vai 187,2 km Id dd cdn phdi ddo [I] Nhimg hien nay, hdu hit cdc md than hdm Id dang ddi mat vdi thuc trgng cham tiin dp ddo Id [IJ Do vdy, di dgt muc tiiu phdt triin da di ra, ngdnh Than cdn phdi tdng cudng ddi mdi cdng nghi ddo Id theo hirdng co gidi hod ddo Id Trong khudn khd bdi viit ndy, tdc gid tdng hgp vd phdn tich dua uu nhugc diim mpt sd phuang dn cdng nghe ddo giing nghiing hien nay; cudi ciing dua phuong dn cdng nghi sir dung td hgp thiit bi ddng bp di kem ed hiiu qud ky thuat, kinh ti nhdt; tir md rpng kit hgp vdi phirong tiin hien ed di dp dung cho cdc dudng Id dd khdc he thdng cdc dudng Id ciia md dao Id nam 2008 tai mot sd ind:Tdc dao Id da Dat van de va gieng nghieng vdi guong cd dien tich tiet dien De tang san lugng khai thac than d cac md than ham Id, hang nam nganh Than phai khai dao dao (Sd) til- 10 m^ -^ 16in^ dat 30 + 40 m/thang, hang nghin met dudng Id da, phai md them cac vdi guong cd Sd = m^ -^ lOm^ dat 40 + 60 gieng nghieng, gieng du'ng md via Trong thdi m/thang [1] Vdi tdc thi cdng nay, thdi gian gian vira qua, tap doan Than va Khoang san Viet dao Id xay dung ca ban thdng thudng keo dai tir Nam (TKV) da dau tu rat nhieu tien ciia va cdng -^ nam Dieu se gay tdn kem kinh te va sire cho cdng tac dao cac Id da Tuy nhien, tien lang phi rat nhieu thai gian de xay dung md dao Id dac biet la tdc dao Id da van d muc rat Cac SO" cong nghe dao gieng nghieng thap Thuc te san xuat cho thay cac day chuyen Ngay nay, cdng nghe dao gieng nghieng cdng nghe dao Id da dugc dau tu cd gia trj rat Idn tren the gidi da cd nhieu tien bd, cho phep song chua phat huy dugc hieu qua vi cdng nghe chung ta cd the ap dung de nang cao tdc va thieu hgp ly, khdng ddng bg va mot sd nguyen hieu qua dau tu nhan khac Hien tai cac md ham Id thudc Can cir vao dieu kien thuc te va trinh phat TKV da va dang ap dung nhieu loai sa cdng trien khoa hgc cdng nghe eiia nganh Than nude nghe (SDCN) dao chdng gieng nghieng khac ta hien nay, cd the dua cac sa dd cdng nghe nhau, nhien tdc dao gieng nghieng vln cdn tuong ung vdi td hgp thiet bj di kem nhu sau cham Chinh vi vay, viec nghien cuu xem xet cac 3.1 So cong nghe phuong dn I (hien nhieu giai phap cdng nghe va td hgp thiet bj sir dung dl md dang dp dun0 nang cao tdc dao cac gieng nghieng la dieu cIn Day la sa hien khdng chi md than thiet Bai bao gidi thieu mot giai phap cdng nghe Khe cham III ma nhieu md viing than Quang vdi mot td hgp thiet bj mdi dap ung yeu elu nang Ninh da va dang ap dung (hinh 1) Trong so dd cao tdc dao gieng nghieng cac md than nay, trinh tu cac cdng viec nhu sau: khoan ham Id viing Quang Ninh guang bang biia khoan cam tay YT28; xiic boc Thyc trang dao Id da va gilng nghieng tai dlt da sau nd bang may cao da loai P- 60B; cac md than viing Quang Ninh dlt da dugc chat tai true tiep len bang tai va Hien tdc dao cac dudng Id da va cac bang tai chuyen dat da len mat bang Tren mat gieng nghieng d cac md than d viing Quang blng san cdng nghiep, dat da dugc van chuyin Ninh van cdn cham Theo so' bd thdng ke tiln blng d td tai bai thai 70 Miiy irV gmi cfto P-6QB AT Ttulng chjfta QU6C 2m Hinh Sa dd cdng nghe dao gieng nghieng phuong an I * Uu diem Day la phuong an tan dung dugc nhtrng phuong tien hien dang cd d nhieu md Do vay khdng phai dau tu ve thiet bj cting nhu ngudi Mat khac, thiet bj cd the lam viec vdi gdc ddc Idn dudi 35 Sii' dung bang tai de van tai dat da d Id nghieng cd gdc ddc < 18° la rat hgp ly * Nhuoc diem Khoan guong bang den biia khoan cam tay YT28, nang suat khoan cdn phu thudc vao chat lugng cdng tac cung cap nen Do vay, nang suat va chat lugng khoan rat thap, thai gian khoan thudng mat + gid/guong Bien phap cd djnh neo can cd su kiem tra su phii hgp vdi dieu kien lam viec ciia may va khoang each tii' guong den may xue bdc Idn tir 12m +17m Tren thue te xiic bdc dat da sau nd bang may cao da loai P- 60B, thudng de lai khoang 20% dat da phai xiic tai bang thii cdng (tren hinh ve the hien bdi doan Lxd hay cdn ggi la khoang each cdng nghe) Guong dao lay ldi lugng da vun cdn lai mzam nude Cdng tac dung chan cdt bang thu cdng rat khd khan va mat nhieu thai gian Khi gap da nd qua ca phai xir ly thu cdng Dat da dugc chat tai true tiep len bang tai ma cd hat chua dugc khdng che Day chinh la nguyen nhan lam cho cdng tac xiic bdc va van chuyin tang tii' 17 + 25 % [2] Thai gian keo dai khung bang tai Idn mdi may xiic P- 60B di chuyen theo guong, khoang -^ 7m mot lan So' dd cdng nghe hien dang dugc SU' dung thi cdng hai gieng md than Khe Cham III, thuc te cho ket qua thap, tdc dao Id chi dat 30 -^ 35 m/thang Can luu y rang sii' dung may cao da loai P- 60B, thi khd cd the sir dung xe khoan de khoan Id vi khdng cd dudng cho xe khoan di chuyen 3.2 So cong nghe phuong dn II Khac vdi phuong an I, sa dd thi cdng gieng nghieng theo phuong an II sii' dung xe khoan tu hanh BTRL2, thi cdng gieng ciing thi khoan guong gieng phu bang xe khoan tu hanh BFRK 1, thdi gian cdng tac khoan khoang - ^ gid/guong, chat lugng khoan dat tieu chuan theo thiet ke (hinh 2) 71 Xeklu>uiBIRL2 Miimcio