Hpi nghi khoa hoc kT thuat mo qudc ti 2010 Cong nghiep mo tien tien vi su phat trien hen vung NGHIEN CUU LITA CHON CONG NGHE DAO CHONG LO P H U H O P V O t t C A C D I E U K I E N M O T H A N H A M L[.]
Hpi Cong nghi nghiep khoa hoc mo tien kT thuat tien mo qudc vi su phat ti trien - 2010 hen vung NGHIEN CUU LITA CHON CONG NGHE DAO CHONG LO P H U H O P VOtt C A C D I E U K I E N M O T H A N H A M L O V I E T N A M • • • TS Pham Minh Dire, TS Le Van Cong V i e n K h o a hoc C o n g nghe M o - T K V Dat van de San l u o n g k h a i thac va dao 16 cua Tap doan T h a n - K h o a n g san V i e t N a m tir lap den k h o n g ngirng tang t r u o n g v o i toe cao va san l u o n g n d i n h Tir nam 2000 den so l u o n g met 16 dao m o i va san l u o n g k h a i thac tang gap gan lan N e u nam 2000 so l u o n g met 16 dao m o i t r o n g n a m c h i dat 7 1 m k h a i thac dat 11.686.000 tan t h i n a m 2009 so l u o n g met 16 dao duoc k h o a n g thac dat 43 t r i e u tan 0 m san l u o n g khai Trir l u o n g than co the k h a i thac bang cong nghe 16 t h i e n cang g i a m D l bao dam n h u cau than cho dat n u o c , nganh than dang tap t r u n g dau t u k h a i thac cac m o bang cong nghe h a m 16 C o g i o i hoa cho cong tac dao 16 va k h a i thac than d u o c quan tam hon bao g i o het v a b u o c dau m a n g l a i n h u n g t i n hieu kha quan Co gioi hoa dao 16 bang may lien hop to co hieu qua, toe dao 16 tang len ro ret, co n h u n g g u o n g 16 dat t i c dp 325m/thang, t i c dat , m / ngay, b i n h quan 11,96 m / n g ( V a n g D a n h ) N h i e u g u o n g 16 dat t i c t r u n g b i n h 150 m / t h ( M o n g Duong) 200m/thang ( D u o n g H u y ) Cong nghe chong va vat lieu chong 16 da co nhung thay doi nhit dinh, nhu: neo be tong cot thep c h o n g g i u doc lap hoac c h l n g g i u k i t h o p v o i be t o n g p h u n duoc sir dung nhieu d u o n g 16 dao t r o n g da N e o c h i t deo c6t thep c h l n g gitr doc lap hoac k i t hop v o i l u o i thep chong g i u t r o n g cac d u o n g 16 doc v i a than dang d u o c c h l n g thir n g h i e m tai mot so d u o n g 16 doc v i a co d i e u k i e n dia chat m o cho phep Cac loai vat lieu va ket cau chong giu moi khong nhung chi tilt kiem kinh phi diu tu m a cai t h i e n d i e u k i e n chong g i u va gop p h i n dang k l tang toe do, nang s u i t dao chong 16 C o g i o i hoa tai cac m o ham 16 va cong t r i n h n g i m , k h o n g n h i r n g giai phong sue lao dpng nang nhoc cho c o n n g u o i , m a cai t h i e n d i l u k i e n l a m viec gop p h i n dam bao nhu cau ve than cho dat n u o c T u y nhien d i l u k i e n dia c h i t p h u c tap nen c o m b a i n dao 16 chi m o i phat h u y tac d u n g t a i m o t so m o co d i l u k i e n vach, t r u v i a n d j n h , neo c h i t deo c l t thep ciing c h i m o i duoc sir d u n g han c h i t a i m o t s6 d u o n g 16 doc v i a co goc d i e k h o n g Ion T i n h h i n h v a t r i e n v o n g n a n g cao toe d o d a o c h o n g 16 t a i T K V C o g i o i hoa dao 16 la y e u cau birc t h i l t va h i t sire quan t r o n g d l i v o i viec dam bao du 16 cho k h a i thac v a d u phong Song m o i cong nghe, t h i l t b i d i u y e u c i u d i l u k i e n dia chat, dieu k i e n k y thuat t h i c h h o p m a n i u k h o n g co n h i r n g danh gia, thir n g h i e m khong nhung k h o n g m a n g l a i ket qua cao, n g u o c l a i c o n gay hau qua n g h i e m t r o n g 524 Hpi Cong nghi nghiep khoa hoc mo tien ki thuat tiin md quoc vi su phat te - trien 2010 ben vung Dieu kien dia chit md khu vyc Quang Ninh rat phuc tap Muc on dinh via theo p h u o n g va goc ddc t h i p , anh h u d n g k h o n g n h d den viec sir d u n g m a y c o m b a i dao l d nhat la combai dao l d da V i v a y , viec khao sat, danh gia dieu k i e n dia chat m d t r u d c k h i lap d u an d i u t u d d n g b d day c h u y l n co g i d i dao chdng l d phai d u o c t i e n hanh m o t each than D d i v d i m a y c o m b a i n k h i dua vao dao l d can xac d i n h m o t sd c h i t i e u c o ban n h u b i n nen, b i n keo dac biet la c h i sd m a i m d n cua da ( a b r a s i v i t y ) D d i v d i m o t sd loai nham thach n h u set k i t , set than c h i sd m a i m d n ( C A I ) c h i vao k h o a n g 0,7 - 0,9 thuan l o i cho viec sir d u n g c o m b a i n n h u n g v d i bdt ket, dac biet cat ket hay san c u d i ket k h i chi sd mai m d n len t d i 3,6 H- 4,7 gay k h d k h a n cho cdng tac k h a u bang m a y c o m b a i n Dac d i e m cua d i l u k i e n dia k y thuat cac m d h i m l d Quang N i n h n h i n c h u n g la k h o n g d n d i n h ca ve chieu day, gdc ddc, c u n g , de khau, c h i sd m a i m d n De nang cao tdc dao l d doc v i a than chuan b i k h a i t r u d n g cho k h a i thac ham l d , nganh than da dau t u m o t loat g d m 16 m a y c o m b a i A M - Z v a 02 m a y A M 45 C d n g nghe c o g i d i hoa dao l d tai T K V t h d i gian qua cd the t d n g h o p theo so dd sau: SO DO CONG NGHE CO GlOl HOA DAO LO DAO LO DA DAO LO THAN 1r LO BANG GIENG NGHIENG c •