/ K E T Q U A THI C O N G G I E N G D U N G M O K H E C H A M II-IV
ThS. D 8 Van Hoang, ThS. Than Van Duy Vien Khoa hpc Cong nghe Mo - Vinaeomin
Bien tap: TS. Truang Dice Du Tom tat:
Ndm 2012, Tap dodn Cdng nghiep Than - Khodng sdn Viet Nam da phe duyet dif dn khai thdc hdm Id md Khe Chdm II-IV v&i cdng sudt 3,5 trieu tdn/ndm vd giao cho Cdng ty than Ha Long ldm Chii ddu lu. De thuc hien duan noi tren, Viin Khoa hoc Cong nghe Md - Vinaeomin da phoi hap v&i Cdng ty Cd phdn Giproshakt -Lien bang Nga, triin khai lap TKKT; TKBVTC hang muc gieng dimg chinh, giing dimg phu +3 5/-500 dong thiri citng ven TKKT tong the ciia Du dn. Trong bdi viet ndy, cdc tdc gid trinh bdy kit qud viic thi cdng giing dimg md Khe Chdm II-IV trong th&i gian qua
Nam 2012, Tap doan Cong nghiep Than Khoang san Viet Nam phe duyet dy an khai thac h i m 16 mo Khe Cham II-IV vai eong s u i t 3,5 trieu t i n nam theo quyet dinh so 689/QO- HOTV ngay 05/4/2012 va giao eho Cong ty than Ha Long lam Chu d i u tu, chii dgng la tong t h i u tu" v i n thilt k l , Vien Khoa hgc Cong nghe Mo - Vinaeomin lap TKKT-DT eong trinh theo ca c h i qui dinh tai Cong van s l 1098/TTg-KTN ngay 03/7/2009 eiia Thii tuang Chinh phii, co phoi hgp vai tu' v i n nuac ngoai ciing thyc hien. Tren ca sa do, Vien Khoa hgc Cong nghe Mo da phoi hgp vai Cong ty Co p h i n Giproshakt - Lien bang Nga then khai lap TKKT-DT TKBVTC-DT hang muc Gieng dirng chinh, gilng dirng phu +35/- 500 dong thai ciing vo'i TKKT-DT tong t h i ciia Dy an. Theo Quyit dinh phe duyet so 52/QO- TKV ngay 10/01/2014, gilng dimg ehinh +35/- 500 du'ge dao tu' mat b i n g mirc +35 (+36), tai vi tri CO tga do X = 23.284.68,96; Y = 453.195,21 xuong mirc -501,6, du'ong kinh 7,0m, trang bi thiing skip van tai than, tong ehiiu dai gieng 538,6m; Gilng dirng phu +35/-500 dugc dao tu- mat b i n g mirc +35 (+36), tai vi tri c6 tga do X = 2328497,61; Y = 453467,63 xuing muc -501,6, duang kinh 8,0m, trang bi thiing cui van tai cong nhan len x u i n g , d i t da thai, thilt bi va vat lieu chong, tong chilu dai gilng 576,5m. Tong hgp k i t c l u vo chong va khoi lugng xay dyng cac g i l n g du'ge neu trong bang 1: Nham sam khoi cong xay dyng eae gilng du'ng, song hanh cung vai qua trinh lap TKBVTC hai gilng, thilt k l thi cong dong bg trang thilt bi dao ehing gilng;
thiet k l to chirc thi cong xay dyng; thilt k l cac cong trinh tam, phu trg phuc vu thi eong va cong tae lap dinh mirc, dan gia, dy toan xay dyng
WSAMZ
IQIIKHI ^ _ I S O 9 0 0 1
cong trinh cung du-gc trien khai kjp thai. Vai muc tieu nang eao nang lyc cac dan vi thi cong trong ngi bg Tap doan Cong nghiep - Than Khoang san Viet Nam, theo yeu c l u eua Chii d i u tu-, cac ho sa thilt k l dugc lap va tinh toan eho hai giai doan xay dyng: Giai doan 1, xay dyng co gieng, doan do mo' eong nghe va than g i l n g d i n met thir 100; Giai doan 2, xay dyng doan than g i l n g tir IIK100 tro xuing va cae du'ong 16 t i l p giap.
Cap gilng dirng mo Khe Cham II-IV du'ge khai eong xay dyng ngay 03/2/2014, xay dyng CO gilng, doan do mo' cong nghe va than g i l n g d i n met thir 100 (giai doan 1) do Cong ty Xay dyng h i m 16 1 - Vinaeomin thye hien, giai phap thi eong ap dung la dao theo cac ehu ky t i l n guanq va t i l n hanh ching giu- c l dinh thanh gilng ngay sau d6. Co gilng dugc dao d i n chilu sau 40m bao g i m p h i n co g i l n g va do mo cong nghe. Pha va d i t da b i n g phu'ang phap khoan no min, sir dung may khoan khi nen. Thulc no sir dung la t h u l c no an toan trong h i m 16, dao qua d i t da sir dung thule no P113, qua than sir dung thule no AH1 do Cong ty H6a c h i t Mo san xuit. Cong tac do be tong dugc t i l n hanh ngay sau khi cong tac xiic boc d i t da dil chieu eao ciia 1 i l n do la 2,5m. Thi cdng do belong sir dung van khuon c l p pha kim loai dugc l i p ghep tii- cac tam thep dinh hinh gia cong s i n tren mat d i t , duge lap rap vgi nhau tai vi tri do. Cong tac xuc b i c d i t da tai gu'ong gilng dirng sir dung may xuc PC 38U-2E banh xich vao thung true tron chira d i t da TZ-3, sau do, dung c l u true 65T van chuyen thung true tu- guang len va do vao xe oto Kamaz 16T du'a ra bai thai. Thong gio dao 16 g i l n g d i n chilu sau 10m sir dung phuang phap thong gio t y
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Thong tin khoa hoc cong nghe m o
Bang 1. Tong hap kit ciu vo chdng va khoi luvng xay dung cac gieng
TT
1
2
3
4 5 6
7
8
9
10 11 12
13
14
15
16
Gieng dimg chinh +35/-500
Ten dimng Id
Co gi§ng Boan 36 m o cong nghe
Than gigng Than gieng Vanhty Than gieng Ngaba mi>c -250
Than gilng
To hop chat tai mirc-300
Than gilng Ngaba m Lfc -350 Than gilng Nga ba mCrc
^ 0 0 Than gieng
To hop chat tai mi>c-450
Ngaba mi>c-500
Tong:
Chieu dai (m)
32,03
7,97
20 95,03
2 104,7
22,3 31,08
35,12
17,15 18,65 29,7
26,3
19,08
43,13
27,4 531,6
Tief dSen dao (rrf)
52,8
47,8
47,8 47,8
47,8
52,8
52,8
52,8
52,8 Khoi limng (rrf)
380,97
956 4542,4 122,16 5004,7 1543,2 1640,8
3844,9
905,52 1163,8 1568,2
1774,5
1007,2
4267,5
1625,5 32.215
VatSeu chong
BT M350-B10
BTCT M400-B10
BT M350-B10
BTCT M400-B10
BT M350-B10
BTCT M400-B10
BT M350ei0
BTCT M400-B10
BT M350-B10
BTCT M400-B10
BTCT M400-B10
Gieng dimg phu +35/-5O0
Ten dirdnglo
Co gilng Doan (Jo mo cong
nghe Than gilng Than gilng Vanhty
Than gilng Vanhty
Than gilng Ngaba
m j c -330 Ngaba
mufc -a50 Than gilng Than gilng Ngaba m i p c ^ o
Ngaba mirc -500 Ngaba
mirc -526
Chieu dai(m)
21,1
18,9
20 78,88
2 113
2
87,5
29,5
29,45 8 83,05
29,5
29,45
15,14
567,5 Tiet dien dao (nf)
63,62
63,62 63,62
63,62
63,62
69,40 63,62
Khoi lirang (rrf)
-
1202,4
1272,3 5018,1 157,6 7188,7
157,6 5566,5
2223,3
3162,0 555,2 5283,4
2236,3
3155,0
1084,9
42.441
VatSeu chong
BT xi than BT Cheng
thim M35OB10
BT chong tham M400-B10
BTCT M400-B10
BT chong tham M400-B10
BTCT M400-B10
nhien, tu' ehieu sau 10m tro' x u i n g sir dung i l y tir nguon dien 35kV (cot so 7-DDK-35kV di phu'ang phap thong gio d i y bang cae quat gio C i m Thanh) du'a v l TBA 35/6kV (xay dyng mai FBDY9.6/2x37 (01 lam viec, 01 d y phdng) dat tai MBSCN +36.0) vol 2 may BA 35/6 co tong tren mat dat ket hgp ong gio m i m duang kinh cong s u i t 6400kVA, dien 6kV du'ge i l y tir tram 900 duge treo dgc co g i l n g de thong gid cho sau do du'ge d i u n i l qua tii phan phoi TCA - qua trinh dao gieng. Cung c l p n u o c trong qua 400 (tii 7,2kV, co tich hgp ca he t h i n g do luang trmh thi cong du-gc i l y tir eae tec chu'a nu'oc cao ap). Nguon dien d y phong d u g c sir dung dat tren mat bang, eung c l p dien thi cong du'ge may phat 2500kVA qua tu phan p h i i vao lu-o-i
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Hinh 1. Sado cong nghe dao, chdng doan c6 giing, do ma cong nghe va than giing din met 100
Hinh 2, 3 Thi cong co gieng mo Khe Cham II-IV den chieu sau 100m 6kV. Cung cap khi nen eho cae thilt bj thi cong
dao gieng b i n g tram nen khi c l djnh dat tai mat b i n g +36,0 va du'ge c l p d i n mieng gieng bang I n g thep 0114 sau do d i n cung cap x u i n g gieng bang ong thep 076 xuong gieng theo t i l n do thi eong. Thong tin lien lae trong qua trinh thi eong sir dung he thong tin hieu va lien lac bang bg dam, nguin sir dung eho tin hieu trong gieng sir dung nguon 127V, cac thilt bi dugc cau tao phdng no. Lien lac song vo tuyin tren mat b i n g sir dung bg dam, camera. Di chuyen ciia cong nhan trong qua trinh thi cong doan co gilng sir dung he thong c l u thang bg dugc khoan neo vao thanh gieng va dugc l i p dat theo tien dp thi cong x u i n g sau.
Oen 31/12/2014, da thi cong xay dyng hoan thien hai gieng vo'i tong chieu dai 200,7m, trong do g i l n g dirng chinh 100,7m; g i l n g dirng phu 100m dam bao ky thuat, an toan. T i l n dp thi cong binh quan 1 0 - 1 2 met/thang.
Oe then khai xay dyng doan than gilng tir
IIK100 tra x u i n g va cac dud'ng 16 tiep giap (giai doan 2), thang '2/2015, Cong ty than Ha Long da to chifc dau t h i u qu6c te de lya chgn nha t h i u va d i n thang 7/2015, da ky hgp d i n g xay dyng vo'i nha t h i u Cong ty TNHH so 3 than Trung Q u i c . Theo do, toan bg nhan lyc, dong bg thilt bi thi cong se dugc nha thau dua tir Trung Q u i c sang de lap dat thi cong xay dyng.
Ngay sau khi hoan thien cac thu tue lien quan, tir thang 9/2015 d i n 10/2015 Cong ty TNHH s l 3 than Trung Q u i c da van chuyen 1.134 tan t h i l t bj v l mat bang san cong nghiep +35 md Khe Cham II-IV de l i p dat, eiing trong thai gian nay, nha t h i u l i p dat xong he thong to-i on djnh, tai nang, thap thi cong, san thi cong, tram b i i n ap, may nen khi eiing tram trgn be tong va d i n 10/10/2015 b i t dau khoan lo min thi cdng tiep phan than g i l n g dirng phu +35/-500 va gieng dirng ehinh +35/-500 b i t d i u thi cong tir 05/11/2015.
Ve ca ban, cong nghe va phuang phap thi eong doan than gieng dirng va eae dud'ng 16 t i l p giap cac gieng ma nha thau Trung Q u i e ap dung tuong t y nhu cae de x u i t trong cac h i sg thilt ke dugc duyet. To hgp thilt bj thi eong gieng dirng bao gom: May true, cae tai d i i u khien khung c l p pha, san thao tac, day dgi t r i e dja, ong thong gid bang kim loai Ol000mm, ong dan khi nen <J)159mm, san treo dao 16 e l u tao kieu 3 tang, thiing true, c l u thang ciru hg.., thiet bj khoan, quat gio, may boc xiic thiiy lyc dang g l u nhop va cac thilt bi phu trg khac di kem. Cong tac dao, chong than gilng dugc tien hanh theo sa d l p h i i hgp, pha va d i t da bang phuang phap khoan no min, sir dung 02 tram khoan SIZ5.5 k i t hgp vai chiim khoan YGZ-70 (may khoan chiim), khoan sau 4,5 met. B i e xiie da sau no min bang may boc nhdp HZ-6 va chuyen da mo len be mat, true nguo'i, thilt bj va vat t u len xuong sir dung may nang 2JK-3.5/18E k i t
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Thong tin khoa hoc cong nghe mo
hgp thiing true 4m^ O l t da dao 16 duge thiing true dua len b l mat roi rdt vao cau chuyen tai bang mang trugt, tu' day da dugc chuyen vao dtd ty do va ehuyen tdi bai thai ehung ciia mo.
Do be tong thanh gilng dugc t i l n hanh trong bg c l p pha kim loai trugt vdi chilu cao do be tong 3,6m, bg cop pha thi eong gieng dugc ket eau tir cac manh nhd rieng biet ghep thanh tirng mang lan, giO'a eae mang Idn ed k i t cau dieu chinh duong kinh bang true ren (mdi k i t c l u cd chilu dai giao dgng 420 + 540mm). Cong tac c l p be tong ching giiJ gilng, sir dung hai duang ong cirng cd duang kinh 0168 mm. O c u l i eiia td'ng duang I n g , l i p dat duang I n g c l p be tong m i m dang I n g ling ed chilu dai 16m. Be tong tu' tram trgn ( b l tri eanh mieng gilng) do vao may c l p be tong, sau dd bam qua dudng I n g vao thiing true be tdng DX-3, be tdng dugc dua x u i n g san eong tac va do vao phiu, dua d i n k h i i do b i n g he thing I n g mem. Cdng tac thdng gid sir dung phuang phap thong gid day. Gid dugc c l p tir tram quat dgc lap ciia tirng gieng theo cac ong bang kim loai day 2mm, dudng kinh ong OIOOO mm d i n each guang gilng la 40 m, tir dd d i n guong Id gieng dugc sir dung I n g gio m i m ct 1000 mm. Chieu dai eiia td'ng doan ong gio kim loai la 4 met dugc lien k i t b i n g cac mat bich, cd ldp dem cao su. Cac ong gid kim loai dugc lien k i t chat vao vd ching eiia Id gilng, cdn ong gid mem dugc treo tren day cap va dugc dich chuyen ben trong I n g kim loai. Cung d p khi nen cho cae hd tieu thu trong gieng (to hop may khoan chiim; may b i c nhdt HZ-
6, may phun ep vu'a be tdng) tir tram nen khi tren mat bang k i t hgp vdi duong I n g thep can ndng khong han Dy = 150mm. Dudng Ing nay dugc lien kit c l dinh vao vd ching cua gilng.
Cong tac thoat nude tai guang 16 dugc thyc hien bang may bom H-2, bam vao thung true tai. Trong truang hgp luu lugng nudc chay vao guang 16 Idn han 5m^/h, cong tac
thoat nuo'c duge thyc hien b i n g may bam DM85-8015, bam len mat b i n g thdng qua duang ong thep O108, khi ehieu sau gieng t h i p han c h i l u cao day cua may bam (250 m) va bam vao tram trung chuyen d cac nga ba khi c h i l u sau g i l n g Idn han ehiiu eao day eiia may bam. Moi tram bam trung chuyen dugc b l tri hai to hgp bam DM85-8015 (01 lam viec, 01 dy phong) va be chira nuac.
Cac cong viee chinh trong mgt chu ky dao c h i n g than g i l n g bao gom: Giao nhan ea san x u i t (giao nhan ca tai guang); Tha va k i t n i l may khoan; Danh d i u vi tri va khoan lo min;
Nap t h u l c no; Di chuyen cac thilt bi len vi tri an toan; Di chuyln nguai len vi tri an toan; No min thong gid; Kiem tra, ciing c l Id; Xiic b i c van chuyen d i t da; C h i n g tam ( n l u ed); Van ehuyin thilt bj, can chinh ha cdp pha va lap ghep cop pha (va cot thep g khu vyc do be tdng cot thep);
Do be tong; Xue bdc Idp dem d i t da; Cae cdng
Hinh 4. Mat bing bi tri thiit bi thi cong giing ddng phu •+35/-500
sa DO CONG NGHE VA Bd TRi THIET B! THI CONG
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TRAM Q U ; M GiO
Hmh 5. Sa do cong nghe va bd tri thiit bi thi cong doan than giing ddng n KHCNM s o 2/2017* CNKT HAM LO
viec khac. Cdng tae to chirc san x u i t va bo tri nhan lyc thi cdng trong gilng dugc bo tri theo tirng chuyen mdn trong chu ky dao c h i n g , tong s l cong nhan lam tryc t i l p cho 01 gilng la 88 ngudi duge phan thanh 04 nhdm thg chfnh tuang irng 4 ca san x u i t trong mdt chu ky gom, Ca 1; Khoan, nap no min; Ca 2: Xuc b i e van chuyen d i t da va chdng tam ( n l u cd); Ca 3:
C h i n g c l dinh va Ca 4: Cdng tac phu trg (Lam saeh guang, duy tu bao duang thilt bi...).
To ehire ciia can bd quan ly va cdng nhan gian t i l p tren mat bang duge bien c h i ggn nhe, vdi tong s l 24 ngudi phan thanh 04 bg phan chinh bao g i m ; Bd phan can bg chi dao, giam sat; 05 ngudi; To ky thuat cong trinh (xay dung, thong gid, ca dien, dja chit, trie dja): 05 ngudi: To quan ly kinh doanh, phu trach cdng tae nghiem thu, cung d p vat tu, thiet bj; cdng tac k l toan, van phdng, thu mua, bao quan thilt bj; 04 nguoi va To hau d n tong hgp, phu trach cdng tac bao ve, y te, lai xe, phien djch va cong nhan dgn ve sinh: 10 nguai. Theo to chirc san x u i t va bo tri nhan lye neu tren, t i c do thi edng dao chong than gilng binh quan duge xay dyng la: 100 met/thang va t i c do thi edng dao ching cac duong Id t i l p giap (nga ba) va h i m , kham khdng nhd ban 900 m^/thang
Tinh den thang 12/2016, da hoan thanh thi cdng gieng dirng phu d i n mire -500 (567,5m), gieng dirng chinh thi cong den mirc -350 va da noi thdng dugc hai gieng tai mirc -350. Tien do binh g i l n g dirng ehinh 70 met/thang va gilng dirng phu 85 met/thang. Trong qua trinh thi
Hinh 6. Hinh anh mot budi lam viec tai hien trucmg gida Chu diu tu. nha thau thi cong cung dan vj tw
vin thiit ki
edng, Chu d i u t u , Nha t h i u thi cdng cung cac don vj T u v i n thilt k l , t u van giam sat thi edng da thuang xuyen phoi hgp, trao ddi kip thdi de xir ly cac van de nay sinh nhu thay doi phu gia trong c l p phii be tong xay dyng, thay doi phuang phap ndi edt thep be tdng... n h i m d i y nhanh t i l n do thi cdng va c h i t lugng cdng trinh xay dyng.
Vdi cam ket trong hgp ddng da ky ket giifa Chii dau t u , sau 825 ngay (ke tir ngay nhan ban giao mat bing), dan vi thi cdng se xay dyng hoan thien than gilng dirng chfnh, g i l n g dirng phu +35/-500 va cac duang 16 t i l p giap; mgt s l duang Id trong san ga mire -350; 16 n i l mirc -500; l i p dat he thing khung c i t g i l n g eiing he thing duong ong va cac dudng cap ky thuat trong hai gieng./.
Tai lieu tham khao:
Vien Khoa hgc Cdng nghe Md-Vinaeomin, (2012). Dy an khai thac h i m Id mot Khe Cham II - IV.
Results from the construction of the vertical shafts at Khe Cham II - VI coal mine
.MSc. Do Van Hoang. MSc. Than \ a n Duy Institute of Mining Science and Technology - Vinaeomin Summary:
In 2012, Vietnam National Coal - Mineral Industries Holding Corporation Limited \ 'iernain National Coal (Vinaeomin) had approved Khe Cham II- VI underground coal mining project with the annual capaciPi- of 3.5 million tons and Ha Long Coal Company had been assigned as the investor For implementing the above mentioned project. Institute of Mining Science and Technology lIMS.AT) has coordinated Hiih Giproshakt joint stock company (Russia) in making engineering designs and construction drawings designs for the main
and auxiliary vertical shafts at the level +35/-500 as well as the general engineering designs of the project.
In this paper the authors refer lo the results from the construction of tlie vertical shafts al Khe Cham II - If coal mine recenllv
e
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