KHOA HOC VA CONG HGH| MO | ! [ j | | l
KET QUA AP DUNG GIAN CHONG MEM LOAI ZRY TRONG KHAI THnc vin D 6 C ini C O N G TV THAN H O N G THAI
TS. D A O H 6 N G Q U A N G , ThS. TFJAN T U A N NGAN, KS. NGUYEN NGOC GIANG - Vien Khoa hpc Cdng nghe Mo
ThS. OAO TRQlilG CU'dNG W Khoa hoc Cdng nghe-Bd Cdng Thurnig
ien nay, de khai thac cac via cd ehieu ddy bung binh, gdc doc 45-^55° d cac md him Id Vung Quang Ninh thu'dng ap dyng cac loai hinh cdng nghe: khai Uiac Id dpc via phan ting; cdng nghe khai thac budng-ld thu'O'ng. Mae du giai quyet du'p'c mpt so khd khan trong khai thac via die, song eac cdng nghe neu trdn cho san lu'p'ng khai thae khdng cao, ty le ton ttilt than lon, dac biet van tilm an nhilu nguy eo mit an toan lao ddng.
D l khic phuc eac nhyp'c diem trdn, trong thdi gian vira qua tgi Cdng ty Than Hong Thai da ap dung thir nghidm cdng nghe khai thae Id chp- xien cheo SLP dung gian chong mlm ZRY cua Trung Qudc de khai thae via cd draeu day trung binh, dp doc fren 45''lrong khudn kho de tai nghien cii'u d p Bd "Nghien ciju ap dung cdng nghe khai thae su' dung gian chdng ddi vd'i eac via day tmng binh, dp die 35^55° 6" cae md than ham Id vung Quang Ninh".
1. Qanh gia tong hop trip lirong than cac via d6c, chieu day trung binh a cac mo TKV
Tong tru" lirp-ng theo cae y l u t l san trang via dli vai dilu kien cac via cd chilu day tmng binh 1,2^3,5 m, dp die 35^55° d cac md him Id vung Quang Ninh (Mao Khd, Vang Danh, Hong Thai, Nam Mlu, Ha Lim. Ha Long, Quang Hanh, Du-ang Huy, Khe Cham) theo cdc mire khai thac va tham dd dja chit la: 136.126 nghin tan, trong dd; (1) Cac khu vyc via ed gdc die tir 35-^45" la 90.857,2 ng.tan, chiem 66,8 %; ehieu day via tu' 1,2-^2,2 m la 31.280 ng.tln, chilm 23 %; chilu day 2,2U3,5 m la 59.577 ng.tln, chiem 43,8 %; (2) Cac khu vyc via ed gdc die 45^55° la 45.268,9 ng.tln, chilm 33,2 %, trong dd: ehilu day via tir 1,2-^2,2 m la 19.077 ng.tan, chiem 14 %, ehieu day 2,21^3,5 m la 26.192 ng.tan, chiem 19,2 %.
Tren ca sd kinh nghiem ap dung cdng nghe khai thac cac via day trung binh, gdc doc 35^-55
trong nirdc va trdn the gidi va ph§n tich eac yeu to anh hu'O'ng din vi^c lira chpn cdng nghe khai thae, de tai da de xult lira chpn du'p'c cac so d l cdng nghe khai thae hp'p ly sCr dyng cae loai gian chong vdi tru' lu'p'ng la: 28.384 ng.tan, chiem 20,8 %, trong dd: (1) 8.604 ng.tln, chilm 30,3 % tru lu'p'ng trong khu virc via cd ehilu day trung binh gdc doc 35°<a<45° CO dieu kipn thuan Ip-i: via on djnh y l chieu day, dp doe; da vaeh on dinh tmng binh din on djnh, cd tai trgng nhe d i n trung binh, de d i n tu'ong doi khd dilu khiln; da try via on djnh tmng binh trd len: ap dung so dd cdng nghe khai thae cot dai theo phirang. Id chp' xien cheo hoac ke vudng gdc via, dilu khien da vach bang pha hoa toan phin vdi to hp'p ca gidl hda ddng bd (may khiu hoac may bao kit hpp vdi gian chong tir hanh) (2) 10.407 ng.tan, chiem 36,7 % tru' iu'ang trong khu vyc via ed ehilu day d i n 2,2 m, gdc die 45°<a<55° cd dilu kien thuan lo'i: via on djnh v l chilu day, dp doc; da vach on djnh trung binh d i n on djnh, cd tai trpng nhe din trung binh, d l den tirong dli khd dilu khien; da tru via on djnh trung binh tro len - ap dung sa d l cdng nghe khai thac cpt dai theo chilu doe, pha hoa toan phin, sir dyng to hop gian chong 2ANSH cua Ucraina,(3) 9374 ng.tln, chiem 33 % trCr lu'p'ng d cac via cd chieu day 1,6^-3,5 m. gdc doc 45°<a<55° - ap dung so do edng nghe khai thac cdt dai theo phu-ong, sir dyng gian chong logi ZRY cua Trung Quic.
2. Qua trinh trien khai va ket qua ap dung cong nghe khai thac cot dai theo phu-ang, SLP dung gian chong loai ZRY cua Trung Quoc tai via 9b khu Trang Khe II Cong ty Than Hing Thai Ap dyng thir nghidm cdng nghe khai thac cdt dai theo phirong, su' dung gian ching logi ZRY cua Trung Quic tai via 9b khu Trang Khd 11 Cdng ty Than Hong Thai dup'c thilt ke eho dieu kien dia chat cua Id chp- (Bang 1).
CONG NGHIEP MO, SO 4 - 2 0 1 8
KHOA HOC VA CfiNG N G H | MO
Bang 1 Biiu kijn die chit cua id cha via 9b khu Tring Khd Cdng ty ThanHdrmTfm^}^:^^^*^^
2.1. Glm thieu loai giin ZRY20/30L Gian ching mlm loai ZRY20/30L eua Trung QuIe la to hpp glm nhieu gia ching (vl ching), mil gia ching co ciu tao glm; 3 floan (xa npc, xa ehe Chan va xa fluoi), fluoc lien kit mlm v6i nhau bang cac mat xich hoac khop ban l l .
eang 2. Thdng si ky thuit ciia giin chong mem loai ZRY20/30L
mlm loai ZRY20/30L (H.2). Khong gian c h f va cong tac khau than cua 16 chp sCi'tEl^'' ching mem leal ZRY (H.3).
a) b)_
d bp phan xa fluoi flupc b i tri h§ thong xilanh piston thuy luc co tac dgng cho phep thay floi chieu rang chong giu 16 chp trong mpt pham vi nhlt flinh;
c6 tac dung ho trp cong tac flilu khiln gian ehing trong qua trinh khai thac chong giO 16 chp. Voi gian ching mlm loai ZRY20/30L (H.1, Bang 2), cho phep khai thac hipu qua floi vdl flilu kiSn via than die nghieng d i n die flimg co chilu day via tir 2,0*3,0 m. Cho eac chi tieu KTKT tit. Moi guong 16 chp (phan xien cheo) co chilu dai tu 60+80 m eho san lupng khai thac tCr 80+120 ngan tIn/nam, nang suit lao flong true tilp tCf 6,0+10,0 tan/cSng. Sp do cong nghe khai thac 16 chp su dgng gian ching
CONG NGHIEP MO, SO 4 - 2 0 1 6
H. 1. Giin chdng mim loai ZRY: a - Cau f|
chdng; b. Gian chdng ioai ZRY; c. Kit^c^
lien kit cic vi chong cda giin; 1 -Xa din) 2 - Xa ndc (xa chinh); 3 - Xi che cha§^
dudi; 5 - Piston didu khiin xi dudi
*^;
2.2. Qui trinh trien khai thfrc hien Bau nam 2014, tai cang van s l 1911fflKV|
ngay 04/4/2014, TKV fla thong qua chu tm-on^
"Dg" an flIu tu ap dgng thif nghiem c6ng ngh%"
thac 16 chp xiSn cheo, ching giu bang gian effi mlm lepi ZRY cCia Trung QuIe tal CIng 'V TR Hong Thai". Cing ty Than Hing Thai fla phli hffl vol Vipn KHCN Mo Ipp dg' an, flirpe Tap floi tham fljnh va Giam flie Cong ty Than Hing ThaiiiJ
KHOA HOC VA CONG NGH| MO ph§ duyet theo Quylt fljnh s l ; 3B45/QB-THT, ngay 03 thang 11 nam 2014. Cong ty Than Hong Thai phli hpp vol Vlpn KHCN Mo Bp thiet k l ban ve thi
IIPI
c6ng cflng nghe va fla flppe Giam dec Cong J / T h a n Hong Thai phe duySt theo Q u y l t fljnh so;
2 5 7 0 / Q B - T H T , ngay 13 thang 6 nam 2 0 1 5 .
.. Lo doc V'B van Iii; 2. Lo doc via lliong gio; 3. Lo cho ap dung dan cMng mimloa ZRY;
4. cop di lai van chuyin; 5. Cup thao than; 6. Mang tiugt; 7 Mang cao; 8, D * mem ZRY:
g.CfitlLDchuvendunq. 10. L6n6ictiantectioZRY.
H 2 Sadi cdng nghd khai thic Id cha, sir dung giin chdng mem loai ZRY20/30L tai Hing Thai a. L6 chp su dung gian ZRY b. Mpt elt ngang 16 chp e. Khoan n l mln khau 16 chp
^^^Sggi^r!d!dn^gia^i^ng^Su than cua Id chg sir dung giin chdng mim ioai ZRY Be du'a cong nghe vao thue t l san xuat cua 16 KHCN Mo mo 16'p hudng dan flao tao ly thuylt v chp, Cflng ty Than Hing Thai fla phli hpp vdi ViSn thu'C hanh d ngoai mat bang va lam cae cong ta
CfiNG NGHIEP MO, SO 4 - 2 0 1 0
KHOA HOC VA CfiNG NGH| MO
chuan bi vi^c dira ding bd thilt bj vao lap dat, khai thac Id chg dau tien (Id chp ph§n tang mirc +65/+95 via 9b khu Trang Khd 11). Cdng tac d^^o tgo du'pc to ehiHC thang 6/2015 vdl sir hu'dng dan cCia cac can bd Vien KHCN Md va eac chuyen gia Trung QuIe. Tong s6 lu'png can bp, cdng nhan ciia Cdng ty Than Hong Thai du'p'c d^o tao, kilm tra va du'p'c cap chu'ng ehi la 157 ngirdi. Ndi dung dao tgo gom eac van d l co ban: (1) Hu'dng din sw dung, van hanh, sira chOa va bao du'O'ng he thong ding bd thilt bj eua d§y chuyen cdng nghe; (2) So do edng nghe khai th^c Id chp"; (3) Hp chilu, quy trinh edng nghe khai thac Id chp'; (4) Hd chilu lap dat, thao thu hoi cae thilt bj Id ehp'; (5) Bien phap xir ly mpt so sir eo xay ra trong qud trinh khai thac Id chp-; (6) Bien phap ky thuat an toan trong qua trinh khai thae v§n hanh cdng nghe; (7) Trach nhiem ca nh§n trong qua trinh khai thae Id ehp"; (8) Hu'dng dan thurc hanh - Van hanh chay thir thilt bi tren mat blng (hinh 4a).
Cudi thang 7/2015, toan bd day chuyen thilt bj eua Id ehp da lip dat xong. Sau khi hoan thi#n cdng t^c ilp dat gian chong, du'p'c Cue Ky thugt An toan va Mo\ tnrdng Cdng nghiep-Bp Cdng Thu'ong va Tap doan Cdng nghiep Than-Khoang san Viet Nam cho phep, ngay 28/7/2015 Cdng ty Than Hong Thai tiln hanh eae edng tac khai thac Id chp"
giai doan 1. Viee khai thac Id ehg dirge tiln hanh vdi sir ehl dao cua lanh dao Cdng ty Than Hong Thai, hu'dng din cua can bd Vien KHCN IVld va eae chuyen gia Trung Quoe, bao gdm eac edng doan chinh: cung co Id ehg; khoan no min khiu gu-ong;
a)
tai than lap dgt mdng tnrgt trong Id chg; dilu I"
hg gian eSn chinh gi^n ching Id chg, thao tfri gi§n chong dogn cuoi Id chg va lap dgt bom them gian ehing d" diu Id chg (tren Id dpi thdng gid); va xCr 1;^ mpt s l hl0n tifgng cd t h l
ra trong qua trinh khai thac. 'i Theo Thiet ke bSn ve thi cdng du-gc phe <
cong tae khai th^c Id chg thCr nghi$m d- i du'gc chia l^m hai gial dogn: Giai dogn 1, khj Id chg ph§n tang mi>c +65/+95, chilu dat 1 xidn cheo L=40 m, gdc d i e Id chg 30°, chilu c kiln khai thac theo phu-ong Lp=40 m vdi mu^
d l thyc hanh lam quen voi cdng nghd md doan 2, khai thdc lap dat gian chong de kdof chg xuing mO-c +40 d l hinh thanh Id cho c d i dai xidn cheo L=105 m. Cdng tac chuan bi a lap dgt gian ching vao Id chg Giai doan"
glm cac edng viee chinh: 1) dao eac 3wB chuan bi eua khu vye khai thae 16 cho, 2) T eac thilt bj trong he thing dong bd e^c { phyc vu edng tac khai thac Id chg: Cdng t ^ cac du'dng Id chuan bi cho Id ehg h o ^ n | tnrdc thang 7/2015; tir ngay 07+17/7/2015, l | gian ching vao Id chg, thu hoi eae vi chdng c lap dgt, bom chat tai va can ehinh cho cac^
ehing. Tong so lu'gng gian chdng lap dat \ chg 150 gian (tu'ong du'ong khoang 52,4 m),J dd: doan lap d 16 nil chan chg la: 4,0 m, doi d Id thirgng xien cheo (thirpng khd'i diem 16 c 40 m, doan lap d 16 thdng gid la 8,4 m Toe c dgt gian chong 7-^^22 gian/ngaydem, trung bi»|
gian/ngaydem (moi ea lip dgt va hoan thien 4 ^ g b)
H. 4. Md hinh hwdng ddn ly thuyet vd Id cha ZRY sau khi lap ddt xong:
a - PJI6 hinh hwdng dan thwc hdnh; b - Ld cha ZRY sau khi lap d$t 2.3. Kit qua khai thac Id chty Giai doan 1
Cae can bd, cdng nhan phan xu-dng da nam bit va thao tac tdt edng nghe. Sau khi khai thae hit chieu dai theo phu'ong Id chg dir kiln cua Giai doan 1 (40 m), thirc hien eac cdng tac ehuan bi, lap dgt bo sung gian ching va khai thac keo dai Id ehg
chuyin sang khai thac Giai dogn 2. Oen riaw^
gan 5 thang then khai ap dung thir nghidtmt ngh# trong dilu kien thyc t l cOa via 9b. Danhi chung, cdng nghd da cho mpt s l chi tidu KTKT 1 (Bang 4). Cdng suit va nang suit lao dpng tJfom dli cao, ton thlt than giSm dang k l chi edn khoai
CfiNG NGHIEP MO, Sfi 4 - 2 0 1 6
KHOA HOC VA CONG NGHl MO _ ^ ^
12,6 d i n 16,3 % (trong khi do ton thlt eua cong nghp khai thac buong-16 thupng cheo khai thae tnj'pc do tLF 304-35 %). Danh gia ve cong tac an toan eua cong nghe; cong nghp co quy trinh khai thac don gian, gian chong co elu tap dpn gian va thiet bi ela 16 chp khpng nhilu. So vol cflng nghp khai thac bulng-16 thupng cheo tru/dc day ip dung tal via 9b, cong ngh§ khai thac 16 chp siJ' dung gian ehflng mem loai ZRY20/30L eo cong tac khai thac va quan ly than khai thae tu' guong chu dpng hon.
Lfl chp dupc thing g i i theo mang thflng g i i chung khing phai thflng gio cue bfl nen dilu kien lam viic eua cong nhan trong lo ehp t i t hon. can bp, cflng nhan phan x u i n g da thuin thue quy trinh khai thac va quan ly t i t cing tac an tean lap dflng. Danh gia k i t qua lam vise cua ding bp thilt bJ 16 chp; day chuyen thiet bj gim tram bom, hS thing cap djch, dan ching 16 chp va eac thilt bi van tal. Nhin ehung, eac thilt bj cua lfl chp iam vl§c tit, dam bao dfl tin cay phuc vu qua trinh khai thae l i chp.
H.5. Mdt sd hinh anh ve cdng trinh khai thie Id cha su' dung gian chong mem ioai ZRY20/30L: a - Li gin biin Cdng trinh chao mimg Bai Hdi Bang bd tinh Quing Ninh; b - Chii tich HBTV Li Minh Chuan thim va ehi dao cdng trinh li chg ZRY20/30L
Bang 3. Mdt sd chi tiiu KTKT cabin
i 26,8 1 1 25,6
L - "'^
iLvm.iJSSr, ,
26,8 25,6 17,3L'^SIft^..
-
76,9 17,6 ft,*..T2,e
-
40,5 16,7 16,3 . J CfiNG NGHIEP NIO, SO 4 - 2 0 1 6
KHOA HOC VA CfiNG NGHi MO
Trong th6l gian khai thac ap dung thu nghiem, cac can bp cflng nhan phan xuong da diic rut dupe nhieu kinh nghipm xO' ly cac hien tupng xay ra trong 16 chp nhu; 1) Gian ching diu 16 chp bj ket kho dua vao vj tri lam vipc; 2) Xa Gian ching bi cliue xuing (hoac nghleh len) bSn hong vach; 3) Gian chong elm vao vach via (dan bj cam); 4) gian ching cam vao tai via; 5) gian ehing bj van; 6)
Cflng ty than Uing Bl va Mong Du'ong) ciS nang ap dung cflng nghfl khai thao sir d g n | ching mlm loai ZRY ciia Trung Quic, khoang 33 % tong trCf lupng eac khu vuc ed nang ap dung cac lopi gian ching trong diliM khai thac via co chilu day trang binh doc n g j V i i kit q u i ap diing thD' nghiem eflng ngh|^
thac l i chp sCr dung gian ching mlrt gian ching bi Ion nhao; 7) Thu hoi gian ehing i l i ZRY20/30L tai Cong ty Than Hong Thai, Ci nii cull 16 chp, truong hpp khflng cfln l i p luoi
ngan each; 8) Xir ly mpt s l su c l v l he thing d p djch va cpt thiiy luc don. Cac kinh nghiSm (giai phap) xu ly dupe Ipp va triln khai trong thue t l , dam bao duy tri khai thac lfl chp i n djnh va an toan.
Trong qua trinh khai thac ap dung thir nghiem 16 chp, Cflng ty Than Hing Thai da phii hpp vo'i Vifln KHCN Mo tiln hanh theo doi khao sat diln bien ap luc mo eua 16 chp d l phuc vu eflng tac nghien ciru hoan thipn mpt s l thpng s l cc ban cija sp do eflng nghfl; hp chieu khai thac va ehing giu' 16 chp; eflng tae t i chu'c san xult trong 16 chp; xay dung hupng din ap dung eong nghe trong dieu kiin via 9b eung nhu cho eac 16 chp khac trong lich chuyin di#n cua Du an va thilt k l da dupc phe duyet.
Danh gia so bp tr& lupng 6' cae mo ham lfl Quang Ninh, eho thay; khoang tren 9,0 trieu t i n (chua k l din phin trCr lupng eiia khoang sang
i§m due k i t dupc; cac nghien cO'u hoirt^
ciing vol bfl Hud'ng dan ap dung cflng nghfl s CO s i t i t d l nghlSn ciru m6 ring cho cac o khai thac than him l i khao trpng Tpp doajj nghiflp Than-Khoang san Viflt Nam
3. Kha nang md' rdng ap dyng cho H d j va cac md ham 16 Quang Ninh
Theo 'Du an diu tu ap dung thO' ngt»'|
nghfl khai thac 16 chp xien chflo, ehing gift' mlm ZRY20/30L tpi Cflng ty Than Hongfl tru' lupng dia ehit huy dpng khai thac c khcang 526,6 nghin tan, tuong dupng v6iM Cflng nghipp khoang 420,3 nghin tin Tren c qua, va nhii'ng kinh nghiem diic kit duoc t t l khai thae 16 chp, Cflng ty Than Hong T hoan thifln cong nghe va t i chirc san xull cao hon nO'a cong suit, nang suit cita lo eho Bang 4. Bang ting hgp trir iugng via diy trung binh gdc ddc 35^5^ tai eic md ham io Quing /^
Kh - • : I
•V*'"
CONG NGHIEP MO, sfi 4 - 2 0 1 6
KHOA HOC U CfiNG NGHl MO
Bang 5. Tong hgp tru' tugng theo chidu diy vi gdc ddc cic via day trung binh vimg Quing Ninh
Bing 6. Pham vi vi dieu kien ip dung sa do cdng nghi khai thic sir dung giin chdng mem ZRY cho via CO chidu day trung binh gic ddc 45^^
Bing 7. Cie khu vire via cd khi nang ip dung cing nghi khai thic sir dung giin ehing mem loai ZRYdmd him id Quang Ninh
Ghi ehd: TLKT - Trir iugng c6 khi ning khai thic sir dung giin chdng; LDC - Loai giin chdng mem ZRY Ha Long, Quang Hanh, Duong Huy, Khe Cham) la;
136.126 nghin t i n , trong do;
• Tru' lupng cae khu vuc via co goc doc tir 35^^45° la 90.857,2 nghin t i n , chilm 66,8 %, trong D i l vdi cac mo ham l i Quang Ninh, theo danh
gia ting hpp trti' lupng, dac dilm dilu kien dia chat-ky thuat mo (Bang 4; Bang 5) va nghien ciru a l xult lya chpn eac lopi hinh cflng nghfl khai thac sir dung cac loai gian ching, trii' lupng cae via e i chilu day trung binh, goc die 35+56° eiia 99 via cDa khoang sang 9 m i ham 16 Quang Ninh (Mao Khe, Hong Thai, Vang Danh, Nam Mau, Ha Lim,
do; chilu day via ttr 1,2+2,2 m la 31.280 nghin tan, ehilm 23 %; chieu day 2,21+3,5 m la 59.577 nghin.tin, chilm 43,8 %.
• Tru' lupng cac khu vuc via e i g i c die 45+55°
CfiNG NGHIlP MO, sfi (1-2016
1^^
KHOA HOC VA CfiNG NGHE MO la 45.268,9 nghin tan, chilm 33,2 %, trong do;chilu day via tir 1,2+2,2 m la 19.077 nghin tan, chilm 14 %, chieu day 2,21+3,5 m la 26.192 nghin tin, chiem 19,2 %. Tren co so phan tich kmh nghiem due kit dupc trong qua trinh khai thac thir nghiflm 16 chp gian ching mlm tpi via 9b khu Trang Khe-Hing Thai d l xuat dieu kien ap diing cong nghp nhu sau (Bang 6). Cac^khu vuc via than thuflc khoang sang cac m i h i m 16 Quang Ninh CO dieu kien ap dgng cing nghfl gian ching mlm dupc trinh bay i Bang 7.
4. Ket luan
Kit qua then khai ap dung thir nghipm cfldng nghe khai thac 16 chp sir dung gian chong nilm ZRY 6 Hong Thai da cho kit qua t i t ; eflng suat lfl ehp dpt khoang 90 ngan tIn/nam, nang suit lao dpng true tilp tir 5,0+5,5 tin/cflng, t i n that cflng nghe 16,0+16,5 %) dpt cac chi tiflu kinh t l ky thuat theo thilt k l va mang lai hipu qua kinh t l cho Cflng ty Than Hong Thai. Cong nghe gian mlm cung cho thiy tinh uu viflt so v6l cac loai hinh cflng nghfl khai thae khac trong eiing dilu kien va hofln toan CO the mo rpng ap dung o cPc mo khac d Quang Ninh, npi CO cac dilu kien tupng tu.D
TAI LIEU THAM KHAO 1. Trln Tuan Ngpn. Nghifln ciru ap dirng co khai thac sir dpng gian ching dil vol cac via d . binh, dp die 35+55 b dc mo him 16 Quang NinS cao ting kit de tai cap Bfl Cflng Thuong. VllnB hoe Cing nghp Mi-Vinacomin. 2015. f
2. Trln Tuin Ngpn. Theo doi hoan thl$n|
nghe Dy an ap dpng thCr nghiam cflng n g h | thac l i chp xlfln chflo, chong giD' blng gian &
mlm ZRY tpi Cflng ty Than Hing Thai-TKVJ cap k i t qua d l tai. Vien Khpa hpc Cflng ngH^
VInaccmln. 2015.
Ngu'6'l bien t$p: Phiing Manh Qac Til khia; via day doc, 16 chp gian ching m^
Ngay nhpn bai: 15 thang 12 nam 2015 Ngay duyet dang bai: 05 thang 7 nam 2
NGHIEN CUU MOI QUAN...
(Ti^p theo trang 4) 4. Ket lu§n
De nghien cu-u tong hpp mdt sd quy lu§t phat triln ap lire md va moi tu'cng tac trong he thing khoi da vach-gian chong khi ha tran than can quan tam:
• Nghien ci>u dac dilm ciu tao dja chat khu vyc Id chp' dir kiln ap dung cc gidi hda bao gdm ciu tao via than, elu tao da vaeh via, dac diem nirt ne va hien tu-png sap Id d i t da vach via, ciu tao da tru eua via va tfnh chat ca ly da vach-tru via va da kep trong khu vye Id chp' dy kiem khai thdc.
• Nghien CLPU theo ddi tim ra quy luat sy tuang tac giCra gian chong va khli than ha tran bao glm:
anh hirdng ap lye md giCra da vach va khoi than ha tran, anh hudng cua tinh chat va phan Idp da vach den dien Id tran, xae djnh birdc sdp d l cua da vach ca ban, trang thai lam viec va phan bo ap lyc Idn gian chong, xac djnh eirdng dp khang lun vaeh, tru via va hoan thien bieu do to chuc san xuat, quy trinh cdng nghe khai thac Id chp" ca gidl hoa.D
TAI Lieu THAM K H A O
1. Phung Manh Die. Bao cao ting kit khoa hpe v^ ky thuat d l tai "Nghien cuu cac giai phap khoa
hpc va cdng nghp nham huy ddng tong I nguyen phuc vu chien luac phat trien bin \ trong khai thac va sir dung than d Vidt Nam" T^
2. D l tdi trpng dilm cap Nha nudc Xay dy^
SO" du lieu dja ea md phue vu nhu d u phat tne^
gidi hda, hi#n dai hoa khai thac than d Vi^t | thuoc Vien Khoa hpe Cdng nghe l\fld-Vinacomin. 2
3. Do Manh Phong, Vu Oinh Tiln. Ap lyc | him Id. NXB Giao thdng Van tai. 2008.
4. A.A. Borisdv. Ca hpe 6d va dja tang.
Nga. Nhedra. Moskva. 1980.
Ngu'cri bien t|ip: Nguyen Binh TO' khoa: cdng nghd ha trln, gian chong, \^ai Ngay nhSn bai: 08 thang 11 nam 2015 ^ Ngay duy#t dang bai: 05 th^ng 7 nam 20'(
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CfiNG NGHIEP MO, sfi 4 - 2 0 1 6
