W'''' Thong lin khoa hpc cong ngh$ md MOT SO VAN DE KHI TJNH TOAN THIET KE XAY DlTNG GIENG MO trong vung dat da boi lap, mem yeu jAt Quang Ninh basin, the coal deposits have been distributed in the compl[.]
W' Thong lin khoa hpc cong ngh$ md MOT SO VAN DE KHI TJNH TOAN THIET KE XAY DlTNG GIENG MO t r o n g v u n g dat da boi lap, m e m yeu jAt Quang Ninh basin, the coal deposits have been distributed in the complicated geological conditions with many faults and fractures and through water for executbearing zones, casing a lot of difficulties ing the mining works The paper refers to some problems in the shaft sinking at the weak and alluvial soil at Quang Ninh area Trong thilt k l xiy dyng md ham Id khai thdng bing gilng, viec qui hogch, xac dmh vj tri gilng hgp ly cd y nghTa rit quan trong, anh hydng tryc tilp d i n ehi phi khai thic v i mdc dd an toin D l d i m bao tuoi thg ciia cdng trinh trgng suit qua trinh t i n tgi mo, eung vdi kit cau hgp ly, dieu quan han ca dd la dieu kien dia ky thuat, dja chit cdng trinh, thiiy van khu vyc dat gilng Ve cdng nang cua gilng, ddi hoi vi tri dat gieng phai hgp ly, s i n ga gilng phai n i m tai trung tam phan bd trd lu-ang cua khoang sang, mieng gieng phai d v| tri thuan tien ve dia ly, giao thdng, thuan Igi viec x i y dyng san edng nghiep cung nhu- c i c edng trinh phg trg khae cua day truyin cdng nghe mo, nhy c i c n h i xu'dng, kho bai chda than, vat lieu phuc vg s i n xuit, v v Thyc t l tgi vung than Quing Nmh, tren be m i t khoang sing la d l i niii nhip nhd, bj chia c i t bdi c i c sdng, sull nhd, dydi mat dat phu cae via than bj chia cit, djch chuyin bdi cac hogt ddng kiln tgo nhy phay pha, dirt gay, cac n i p uon, v v Ben canh dd, nhilu mo ham Id khai thac dydi gam hoac ben ria cac moong khai thic Ip thien, khai thic hon hgp ham Id - Ig thien TS, PHAM MINH Dye Vi$n Khoa hgc C6ng ngh^ Md - Vinacomin dan xen nhau, bai thii 10 thiin n i m trin viing khai thic h i m Id, Nhyng dilu ki^n nhy v$y gay khd khSn rit Idn vi^c x i y dyng gilng md, dd, n i u b l tri mieng gilng tren mat dja hinh t y nhien thi khIi lygng san gat Idn, khong thu^n Igi bo tri mgt bang sSn cdng nghiep, trydng hgp md gilng qua bai thai, phan mi^ng, c l va than gilng phai nim Idp da phu chu'a ddng kit, lien kit ylu, vda khd khan q u i trinh thi cdng, vda anh hydng d i n chit lu'gng edng trinh Xay dyng gilng tren b i i thai l i trydng hap it ggp tren the gidi, Trong dilu kiin thyc t l nhy vay, nhieu v| tri b l tri gieng khdng the vda dap dng v l dilu kien kinh t l , vda dap dng v l tuli thg cdng trinh, nhien, mgt gidi hgn nhit dmh phat kit hgp h i i hda nhCrng yeu c i u tren, tren ca sd chip nhgn dieu kien ty nhiin, kit hgp vdi nhdng giai phap ky thugt, cdng nghe hdp 'y