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O Ph6 Tdng bi6n tQP
kiem Thu [9 foa so?n:
ThS. NGUYET.I VAN BIEN
O Ui vi6n PhU trSch Tr! sqr:
KS. TRAN VAN TRACH
O Ui vi6n Ban bi6n t?P:
TS. NGUYEN Ei}.IH
PGS.TS. PHUNO MANH OAC
TSKH. DINH NG9C DANG
TS. NGHIEM GlAPGS.TS.NG[.TT. H6 Si CIEO
TS. TA NG9C HACN. NGUYEN TH! HUYENTS. NGUYEN HONG MINH
GS.TS.NG[.FT. VO CHi UY
PGS.TS. NGUYE.ru CANH NAM
KS. DAO VAN NGAM
TS. DAo oAc rAoTS. PHAN NG9C TRUNG
GS.TS.NGND. rnAnr MANH XUAN
r TOA SO4n:Sd 3 - Phan Dinh Gi6tThanh Xuin-Hir NQi
Di6n thogi: 36649158; 36649159Fax: (8aa) 36649159
Email : [email protected] : www.vinamin.vn
o Tap chi rudt ban vff s1rcgng t5c
ctia: Tnftrg Dqi hgc M6op chdt;
ren Khoa h9c vi COng nghe M&trr3fgn kin; MQn Klroa hgc COngnghe U6; .ten Ddu khi
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I] KHOA HOG UN C0NG ilGHE Mt}
* Nghi6n curr.r dd xudt phrrong phap d6nh gia
mu. do chdn dong nd min thi cong duong hdmm6i den trang thai c0a duong hdm c0 l6n c6n
* Nghien ctru ap dgng thudc tuydn ndi moi tuydnquang fenspat LiP Thach
* Nghien ctlu, thiet kd va che t?o mfry co diccho nha m5y tuydn than Vang Danh ll
* MQt hrr6ng tiep can khi xdrc dilh chidu sau
khai thac cac m6 da xay dqng n6m dudi mu/c
tho6t nUdc tul ch6Y * Nghien cur.r dQ dn dinh c0a khoi d xung
quanh c6ng trinh ngdm tidt dien hinh tron
* MQt so vdn dd v6 van tai h5n hgp birn than tai
nhdr miiy tuydn than Vang Danh 2
* Mgt s6 gi6i phap qu6n lli tiet kiem dienn6ng trong c6c phAn xu6ng va xi nghiepcOng ng hi€p
* Nghi6n cfu su thay ddi cfia*rrng sudt va biSn
d?ng xung quanh cilc duong lo khi chu ! densU thay ddi cac tinh chdt dat da
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* Du bao va phan vung nguy cd xAy ta l0 quetkhu vuc QuV Hqp, tinh NghO An
* Giai phap LJng dqng cong nghQ dinh vl vQ tinh
dd chuydn do cao qua song trong xay dung cdu
* Nghien crnr thu hdi than sach tu 05t da l5n
thin cOa COng ty TNHH MTV Khe Sinr-TdngCong ty Dong Bac
* Nghien crru 6nh nudng c0a mQt so tfr0ng so ket
cd, den tudi tho ctia m6y bom ly tam dung cdplieu 6 cdrc nha miiy tuydn than Qu6ng Ninh
* Nghi6n c(tu nguy6n nhdn, giAi phap gi6m su corkhi thi cOng cac cong trinh ngdm tiet diCn nh6beng phuong phap keo ong trr/c tielp
* SLJ anh hu6ng ctia dic didm hinh thai-cdu trucc6c via qu{ng apatit m6 C6c, Cam Duong, LAo
Cai den thbm do va khai th6co3. So s6nh hieu qu6 giita thuat toan frdi quy tuydn
tfnh va phi tuyen tinh khi dLJ bao s6ng chi{n dQng
nd min tr6n m6 than Nui Beo, Qu6ng Ninh
n [H0A HoC KlilH ti vA ounu ti [lGAilH m0
Nguy6n VEn Thinh 67va nnk
Khuong The Hung 73
Nguy6n Hoang 78 va nnk
Ddng Thi Bfch 85
Nghiem Gia 89va nnk
V6 Trong Hung, 1
OFng Vdn Ki6n
Duong M?nh Hung 8va nnk
B0i Xuan Hanh 12va nnk
Le Thi Thu Hoa , 17
Ddo Vi6t 20Dang Trung Thanh
Nguy6n Duy Chinh 26
Pham Thanh Liem 29
Trdn Tudn Minh,Ding Trung Thanh
Nguy6n Phulongvd nnk
Nguy6n Quang Thang
36
44
52
Le Viet Hava nnk
V0 Nam Ngqn,V0 Nggc Tra
57
63
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* Nhap khdu ffran-Nhgng van Od Oat na cdn gi6i quyet
* Giai phap dAm b6o nhu cdu than cho luy6ngang lo cao c0a nganh theP Vi6t Nam
N THoHG TIN KHOA HtlC.XI THUAT XGAHH iqo
* Phieu ddng ky HgI nghi KH&KT M6 toan qu6c
ldn thu 26
* Tin v5n ngAnh m6 tnd gi6i Duc Toan 93
* Tjnh hinh kinh doanh c0a cAcdoanh nghlep nganh Nguyen Vdn Bi6n 96
khai khoang Quy 1 ndm 2018
* Thong b6o Sd 1 HOi nghi KH&}fi [+o toanqu6c ldn th w 26
Anh Bia 1: Mdy khoan SIJNWARO SYIDE 165 (Anh WH)
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glmNo pHuoruo pHr{p H6o 6lrg TRuc TrC'po
;vr\ 'NGUYEN VAN THINH, TRAN TUAN MINH,
NGUYET.T DUyEru PHoNG, DANG TRUNG THANHTrueng Dai hgc Mo-Dla chdt
Email : dangtru ngthanh@khoaxaydu ng.edu.vn
1.Dqt vdn da
Cong trinh ng0m tiet diQn nho (CTNTDN) ngaycang dugc sfr dung rQng r6i trong lTnh v\rc xay dLrngcOng trinh ngAm (CTN). Chung duEc su dUng ldrm
hAm ky thuQt (cap diQn, cap ky thuat), ducrng 6ngcdp va tho6t nLpclc trong cdc thanh ph6,... Ducrngkinh c6c CTNTDN thucrng han ch6 ndm trongkhodng 20+300 cm. HiQn nay, viQc thi cong cdcCTNTDN trong dieu kiQn dia chdt phuc tap it duEcquan t6m, dic biet la tai c6c d0 thi !cyn. COng nghexay dUng CTNTDN co th6 duEc chia ra lam cdcphuong phap [6]: phucrng phap dao l0 thien (Cutand Cover); phucrng phap dao bdng mdy (MTBMMrcro Tunnel Boring Machines); phucrng phap kfchd6y ong (Pipe Jacking); phucrng phdrp khoan ngangdinh hucrng (HDD Horizontal Directional Drilling);phucrng phap dong 6ng (Pipe Ramrning); phucrngph6p khoan ccy hec (Auger Boring); phr/cyng phapkeo ong trqrc tiep (DPM - Direct Pipe Method). MAiphucrng phap thi cong ddu co cric Llu, nhugc di6mva diOu kien 6p dUng khdrc nhau. Cac X6t qua thr,rc t6va nghien cLpu chi ra hiQu qua c0a cOng nghQ thicong xay dpng CTNTDN phU thuOc vao nhi6u y6u t6nhu: di6u kien dia chdt cOng trinh, dia chdt th0y vdn,c6ng nghe thi cong, kha ndng van hanh thi6t bi c0acOng nhdn, k! su.
ViQc nghien cuu hieu qua khi sfr dUng congnghe thi cong CTNTDN da duEc quan tam tr/ l6u,co th6 k6 den cac nghien cuu [6J*t16]. Cec tiic gia
[6], [10], [1 1] da chl ra nh0ng y6u t0 anh hu&ngd6n ti6n dg, chdt lucrng c0a cOng tac thi congCTNTDN trong diOu kien OAt da chua nL^pc/c, cocuQi s6i. Ngay nay, ti6n b0 ky thuQt trong thi cOngCTN bang m6y dao hArn loai nho (MDHLN) de vddang dugc cac cong ty sdn xuat nhu Herrenknecht
(Duc), Lovat (Canada), Szhimuzin/Shimizu (NhatBan),... luOn duEc cdi ti6n dA dap ung t6t hontrong di6u kien thqrc t6.
Tai Viet Nam, viQc nghien ctlu 6p dUng c6ngnghe thi cong CTNTDN c0ng da dugc quan tam[1]+[5]. Tuy nhi6n, c6c nghi6n cuu danh gia sLp cotrong que trinh thi cong CTNTDN con it duEc decap. Trong cdc tai liQu 12)*141, c6c t6c gia ch0 yeuphan tfch, d6nh gie cdc r0i ro trong qua trinh thicong xay dUng CTNTDN khi su dUng cong ngheklch d6y (Pipe Jacking). Trong khi do, khi thi c6ngCTNTDN co nhieu cOng nghe thi cOng khac nhau.Do vQy, viQc nghien cr/u d6nh gia kha nang xdy ras\^p c0 va de xudt giai phap nhim gidm thi6u r0i rotrong que trinh thi cong voi cdc cong nghg thi congkhac nhau duEc xem la v5n de cap thiet. Trong baibao, nhom tac gia gicri thieu mQt s6 dang sU c6thucrng xay va dA xuat giai phap gidm thi6u sU cokhi thi cong CTNTDN bang phuong phap keo 6ngtrqrc tiep (Direct Pipe Method).
2. Phuong phap k6o 6ng trr,rc ti6p trong x0yd\rng CTNTDN
Phucrng phap k6o 6ng trqrc ti6p duEc siy dUngkhi thi c6ng cdc ducrng 6ng thep co ducrng kinhkhong lcvn hcyn 1 ,2 m (nhu c6c duong 6ng ky thuat)[9], t101, [1 1]. Chidu dai m6l 6ng co th6 len den vaichUc met, trong trucrng hqp CTN co chi6u dai lcyn thico th6 han va n6l cdc doan 6ng voi nhau d6 tangchi6u dai thi cong. VA bdn chat phucrng phap keo6ng trgrc ti6p tucrng tW nhu phuong phdrp kfch dAy(Pipe Jacking), di6m khac & day la hC thong keo ongduEc bao b6n ngoai v6 tdm thep con phucrng phapkich dAy he th6ng kich dAy duEc dAt o phfa sau 6ngkich. Mat bdng thi cong khi sfr dUng DPM lcyn hcyn
d6 tranh ti6p xuc gi0a 6ng va ddt dii do ma sdrt c0ng
G0ilG ilGHTEP mo, s0z-zm
17
nhu tr6nh hu hai 6ng. Trong que trinh keo 6ng n6nsu dUng c6c gia dO t<6t hEp vcyi con lan. COng tactach boc dat da o guclng hAm duqc thWc hir?n bdngcilc MDHLN, Trong di6u kien dat da yOu h9 thongddu cdt su dung dang rdng cdt, trucrng hEp O6t dAcrrng su dUng ddu cdt dang dia cdt (H.4). ViOcchong dO gL.pong ham s[r dUng betonite hoic nuoc
co 5p, van tai dat da thai bang 6ng th0y h,rc. T6ngquan vd cong tac thi cong CTNTDN du,Ec mo tetrong hinh H,1
v
D6 dir3u chinh hucrngtrqng van, xoSn ong c0ngtren thanh ong ngLPcli ta sunhu trong hinh H.3.
va thi cong treinh tinhnhu lam giiim ma sdrt
dUng b0 dieu khi6n kfch
U.t. f6ng quan phuong phap xdy dqrng CINIDN bdng cong nghQ DPM [17]a) b)
H 2, Sodo vi tri giengthi cong ve gieng nhQn [17] a - Khu vuc gieng bilt dau dao; b - Khu vW thao dau dao
H,3, He th1ng keo 6ng,dieu chinh hanh trinh va dO d6c cla Ong t1 7l
c0HE t{GHriP rfr6, s0 z - zot Bffi
ffi xron ruc un cone ucnE mo
.- .,.. -;. .:. ...... i. 1.a
r.: .:i :-.- :-.:'ry4.f{+qalxrt+t
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3. Cac sH c6, nguy6n nhAn va c6ch khic phgckhi thi c6ng c6c dulng .him tiet diQn nho bangcong nghC DPM
3, 7, Ng3yen nhdn v1 dang s V c6co nhieu dang sL/ co xdy ra trong qud trinh thi
cOng xdy dUng CTNTDN bdng phuong phap DpM.Khi s[r dung DPM co th6 quan siit dugc s\^p c0 do
H.4. M\t so toqi dau cdt trongb - Dau cat dung trong
H,6. sr co khi thi cong duvng ham tiet dien nhd [1 1J' a
Khong nh0ng gAp sW c6 hu hong rdng cdt,di,a cdt (H.7.a) ma tlong qu6 trinh thi cong hAmti6t diOn nhd co th6 xuat hi0n cd hiQn tuqngngqp ung t?i gi6ng thi c6nghofc gi6ng nh0n(gi6ng thu h6i dAu dao) (H.Z.O). fNgo5i r{, su c6
thi,cong CINTDN [1 7]; a - Dau cdt dung trong dil da mem;cIil da pha trQn; c - Dau cat dung trong det da cung
lun, s{Jt rroac Jarn nut va h6ng bA mat ducrng khi thicong dwrrg 6119 qua ducrhg giao thOng (H 5i TrongmOt s6 truong trqp, co th6- bi tran cndt r6ng do r,,dung bentonite va nuCIc (H.6.a). Mgt s6 truong hqpkhac, .he tfr&lg diu cet co thd bi vo he thong rangdia cdt do qu6 binh dao gap de, tdng de co kichthucvc lcvn hon dau deo ctra may dao ham (H.6.b).
- Trao vcra bentonite; b - GAp da tdng cung va qua khd
con xdy ra do lQch h uong th i cong hay vuongc6c cec c0a cdc cong trinh tron be mat cAn phdixu ly, va c.ac nguyen nh6n udt thucrng khac nhugAp cdc di6u kiCn dla chdt phuc tqp. Qm thuc t6thdy rdng, sl=/ c6 xdy ra do nhieu nguyen nhan
a)
H.5. MQt sd dqng sqr c6 khi thi c6ng ?TNTDN [11]: a - Lln, srlt duong; b - Nui mdt duong
r(HoA HgC UA C0ilS ilSrif r0
rf,(!$ uA c0FuG ilGF$fr
khac nhau tuy .nhi6n, co th6 t6ng t<6t cdc nguyOnnhan gay sqr c-6 nhu H.B. c6 nhcrng nguyon nIan16 rang vdr de xdc dinh, song cung.-o nhongnguyon nh6n mang tfnh ch0 quan hoac khac[quan. su c6 xdy ra co th6 la do dla chSt nhung
a)
: a l#gf s6 gidi phdp h?n ch6 sqr c6_,.5'::19i. dugc cac nguyOn nh6n gay ra sup co## u'rr{ CTNTDN khi thi cong bdng corg ;,gh0 DpM
cring co th6 ta do thi6t bi. Di6u nay doi h6ichi h uy cong trucrng pha i co cac k iencluyen sdu, kinh nghiem vOn hanh va thibang cong nghe opu. Hou que coa c6cnay co th6 duoc mO te nhu trong H.g.
vA dua ra duoc c6c gi4i phap khdc phuc lacAn thi6t. M6i dang rrr".a oe, ouEC khdc phuc,quyet bang c5c pnu0ng phap khac nhau.
ng ucrith ucc0ng
rui ro
b)
H.7. sr c6 dra cat vd ngQp tut tai gieng thi cong: a - Hong dia cat [1 2]; b - Ngap tut trong cac gieng t1 3l
H.8. Nguy€n nh6n xdy ra sqr c6 khithi c6ng }TNTDN oang c6ng nghQ DpM
H.9. HAu que cla cac su cO khi thi cong CTNTDN bang c1ng nghe DPM
dieugidiTuy
C6c nguy€n nhdn xdy ra sU c6trong thi cOng CTNTDN
Do ch0 quan(con nguoi)
Do dieu kiendia chat Do thiet bi
- Hdng h€ th6ng kfch;- He th0ng van chuy€n ddtda thei bi vO;
R0i ro do hdng, m6nrdng cdt, dia cdt,
- Van hdrnn thi6t bi;- Di0u khi€n kh6ng theoquy trinh;- _Kh0ng tinh tdo rnin hmdn,...
Di€u kiOn dla chat Oattruong (phay phe, bun ley);- De td ng, m6ng cgc, ...;- Hang cqc t0, c6c congtrinh c0 t0n tai,...
HQu qud c0a c6c su c6
Con nquoi.
Gay thuong tfch chocOng nhdn, ky su vflnhanh d ngodi duongh6m vd khu vLrc giOngthi c0ng.
Thiet bi:
Co th6 ldm chim, rndt dAuddo, hdng riing dla cdt.Hdng he th6ng krch, geyhu hai Ong.Dung qu6 trinh thi cOng.
- Vd ham bi vAn, l€ch, c6khi bi r6ch, m6i n6i hdng;
B€ mAt co the lun hoA. bidd.y trOi len be mAt, ngAp lUtgieng k ich,...
KrlloA Htlc yA c0ue
H.10. Hieu qud. c0a qua trinh thi c6ngCfNTDN bang cong nghe DpM
Trong thuc t6, viec xac dinh su c6 va de xudtc6c giei-phap khdc phuq ta khong dcyn gidn. Tuynhi6n,,dua tren cc/ scv t6ng hqp cac su c6 ngoaithttc te c0ng nhu ciic bdo cao khoa hqc nhom tiicgia de xuat mQt so gidi phdp nhu sau:
kem phei dugc bdo tri, bdo duong trucyc khi thicOng vi luon co cac thi6t Oi dq/ phong,
cac tcv) phei xfr ly hq,'lg cac tcy tu trucyc bd,ng hinhthuc bcvrn ep voq l6p day neu kich thucyc hangnho, hoqc thay 06i hucrng dao dA trdnh t6n thatv[ra bentonite c0ng nhu tranh bi chim dAu daoneu dieu kien thrr. ie cho pl-rep;
c0a cac cong tri nh c0 dA lai nen xLp ly bangciich thao, rut bo cgc. Neu th6o va rut bo d,rqlcec khong th6 thuc
. hiQn, nen sr/ dung biQnphdp cat cec, hoqc tien hanh Iai tuy6n 06" tranhvi trI c0a cgc;
tuEng tran, vo 6ng th0y luc d5n bentonite hoacdAu. Trong trucvng lqe nay, phdi dung qu6 trinhdao va ti6n hanh-noi ong hoac thay d,rong 6;;moi. Vira bentonite duEc thu hdi va c6c van de;phei duEc dong, khi sr/ c6 duqc khac phuc ti6nhanh ki6m tra va qua trinh thi cong s6 ti6p tu.
khi di6u ki€n an toin cho phep;
trong diou ki$n cat da co kha ndng mai mon caonen tang ap l\rc day cung vcyi tang t6c dO cdt
vcra bentonite hoac chdr l6ng de co th6 dAy hoaccat tach dat da tai susns he;. Ne; ba1 a;'r,r^s,duong, kf nh lon lon rnay dao ham, he thOngtllg. gel khong tho cat tach cin phai thay rdngcat thi dao, gieng t?nr (gieng rrung gian) ,ia ti6n
l:rl tsv dau dao ren thay hcdc b;;duong mayoao nam;
trucrng hEp nay,nel cp giai phap *u lf non d6ltrucvc khi thi cOng d6 non Odt co du d0 cung nh.tdinh trucvc khi tien hanh khai dao. Vai tro khaosdt tuyen va tham do dia chat co y nghla quyetdinh den vdn dA nay rf rri mua lcyn, hodc co hientucrng ngOp lut phai tien hanh ngdn nuoc,quayva tao hanh lang tranh nl/oc tran vao gieng'gayngap lutr hu h6ng c6c thi6t bi c0ng nnu- pnaidung quA trinh thi cong;
v0n hanh: Qua trinh thi cong bdng phucrng phapkeo 9tg !rrr. liop co th6 spi u6n"vl gal 5.; Jotoc d0 cOa dAu dao va [6c dq keo 619 ktiongoa 1s n ha u. Trong mei di6u kiQn, ng;oi oieukhi6n qua trinh thicong phai vqn hanh dung vcyiquy tri nh c0a phucrng phap thi cong. cong nr,anva ky sLp yan hanh may mo9 kh6ng dung quytrinh co th6 gay ra cdc su c6 doi ,6i he in6ngdiQn, th0y lqrc va cdc he th6ng ccy khi khac c0atoan b0 he th6ng. Do do, cong nhan vOn hanhX . ,.cein phai duEc dao tao va co c6c ki6n thuc, kynd ng tOt.
4. X6t luf n vi kien nghi
sw c6 trong thi cOng CTNTDN ta vdn dA quantrgng, lam cho thoi gian thi cong keo dai, tdnggie thanh xdy dr,rng.Do do, viOc ddm bdo quAtrinh v0n hanh, thi cOng an toan c0ng nhu t6c dgthi cOng x?y dt,rng c6c crN ta dieu rdt thi6t thucNhu de d0 c0p trong. bai b6o co nhieu dang sq/co khac nhau, do nnieu nguyen nhan gay ,r, cacnguy6n nhan khach quan, ch0 quan, co nguyennhan co th6 du dodn va khong th6 dr,r doanduqc. Vi0c nghien cuu va x6c dinh nguyen hnangay sL^p co co y nghTa quan trgng trong qua trinhthi -cOng xgy dqrng cdc CTNTDN. Nhung slr c6nh6 co th6 gay 6ch tdc, lam ch0m qua irtnh thicong CTNTDN nhu gap di6u kien dia chat phuctA.p, trao v0a bentonitg,ngap gieng, hong rdng,dau ceI, mot s6 sH c6 g5v thiet hai nang nn"uchim d6u dao, hr-F hong-ong lam ch0m'ti6n d8
.r,
HSilffi H0
nhi6n, dA ddm bdo hiOu que hoat dOng c0ng nhuan toan trong que trinh thi cong thi ch0
-oau t; phdiqyan.tdrn d6n cac yeu to co tli6 gay ra su .6, .a.y6u to anh hudng don gua trinn tfii .ong nhu m0 tatrong hinh H.10.
Cong nhdn vgnhanh m6y moc
ThiCt bi sir dUngluon duqc bdo
duOng
Hieu qud vOn hanhMDHLN
Dieu tra khdosdrt dia chat
Bdo duong, suach0a thiCt bi
--\
tdch cua dau dao ket.nqp tdng ap lqrc bom ep
cOng trlnh gay thiet hai vd kinh t6. D6 gi6m thi6uc6c sL^p cO trong qua tr'inh thi c0ng CTN bdngphucrng phap keo 0ng trqrc ti6p phai co ki6n thucs6u vO c6c nguyen nh6n gay r0i ro trong quatrinh van hanh, dac biet la nh0ng y6u t6 co tinhgiao thoa kho dU dodrn giira c5c y6u t6 ch0 quan
. X ,: r l . I l t t . *lva yeu t0 khach quan. Ngoai r€1, de ddm bilohieu qua su dUng phucrng phap nay thi cOng tdrc
diOu tra khiio sat phei duqc quan tam chat ch6,ki,On thuc vd tay ngh6 c0a cong nhdn vOn hanh
xcOng cdn dugc n6ng cao.fl
TAI LIEU THAM KHAO
1 . Dang Trung Thanh. Nghien cl^r,u, 6p dUngngOn ng0,mo hinh hoa he thong SysML phantich iinh hudng c0a c6c di6u kiQn dia chAtkhac nhau d6n t6c d0 thi c0ng cong tri n h
X.).-.t.r?hwngAm bdng mAy dao h6m loAi nh6, DC tai capco sd, Ma so T15 -34, Truong Dai hoc M6-D!ach6t, Ha Nqi, 201s.
3. Ding Trung Thanh. Nghien cL/u c6c nguy6nnhan gay ra st.r c6 khi thi cOng cOng trinh ng6mbang m6y dao h6m loAi nh6, Tap chr Cong nghiepMo, 3, 59-62 ,201 6.
4, Ding Trung Thinh. Nghi0n cuu danh gia dnhhuong cfra dieu kiQn OAt de den toc d0 thi cong congtrinh ngAm bdng mdy dao h6m loai nho, Tap chf CongnghiQp Mo, 01 , 14-17 ,2015.
5. Trdn Tudn Minh va nnk. Nghien cLru valqra chgn cong nghe thi cOng c6c cong tri nhngAm tiet dien nho trong di6u kien thanh pho,Tuy6n tap bao c6o HQi nghi khoa hQc TrwcvngDai hqc Mo-Dia chat I6n thLr 21 , He NOi thdrng11-2014, tr 1 60 -167 .
6. Microtunneling and pipe jacking, SebastienViroux FFK, internal BAM Market, Nieuwegein,June 1 0, 2008
7. Jacking and boring best practices, Achievingquality products, NASST 2005.
B. Le Projet National de recherches, rnicrotunnels,par Michel MERMET et Alain GU ILLOUX,Rencontres techniques IREX Pari s - 21 mars 2002.
9, Eric Chey, JACJOBS, LDERWOOD watera nd wastewater d istrict, a n introd uction totre n ch less methods a nd eva luation for theinstallation of new pipelines, 2009.
10, Mohammad Najafi, Ph.D., P.E. TrenchlessTechnology Piping Installation and lnspection, TheUniversity of Texas at Arlington,2010.
11. J.J. Jebelli et al. Excavation failure duringmicro-tunneling in fine sands: A case study.Tunnelling and Underground Space Technology 25(201 0) 81 1 -81 8
12. Lester M. Bradshaw, Jr., President, Bradshaw
c0xs irEHrEP ilo, s0 z - ztll B
Construction Corporation, Eldersburg, MarylandMicrotunneling rn Mixed F acelMixed Reach HardRock , 2014.
1 3. Christy Sanders-Meena, Anne Tonetla-Howe,and Matthew Pease. Weighing the Risks of lnstallinga Lake Tap with Microtunneling. North AmericanSociety for Trenchless Technology (NASTT). No-DigShow 2011. Washrngton, D.C. March 27-31 ,2011.
14. flanKpareHKo A.H., Hryen K.X., CannanbA,C., 6eranhHoB A,5., AtrrtaHTonoB ,Q.5.MarerraaTuqecxoe MoAenmpoBaHHe Bnt AHtAn rexHon or/'tcrpot4TeflbcrBa MhKporoHHenefi MeroAoM npoKonaHa HanpnxeHHoe cocrofiHkle BMeuarcueroMaccilBa n KoHcrpyr(t{Nlo Kpen h cyqecTBy}otqeroToH uennl ll-opnurN ruSopMaUNoHHo- a Hafl nrnvecxni,t6rcnnereHb (HayuHo-rexHhL{ecxtrtit xypHan), 2015.Nq 11. C, 252-258.
15. CarvrManu A.C., I-laHKpaTeHKo A.H., HryeH K.
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o6AenxN ToHHenfl npfi npoBeAeHt tA a6nv3n HeroBbrpa6orxm MeroAoM MNKporoHHenhpoBa awnllTpaHcnoprHoe crpor4renbcrBo ,201 5. Nq 1 . C . 14-17 .
16. I-laHKpareHKo A.H., CarvrManb A.C., HryeHK.X. Mareuarr4L{ecKoe MoAenhpoBaHNe HanpnxeHHorococToflHt4fl KoHCrpyKWVl Kpen h ToHHenR noKpyxaoqero MacchBa nopoA npil npoBeAeH4n B
ero oKpecrHocrh aurpa6orKkl cnoco5avw Mr4Kpo-
ToHHen14poBa HVA ll [-opHuttt NHQopMaqNoHHo-
aHan vTvqecxutZ OxcnnereHb (HayuHo-TexHNL{ecxnnxypHan ). 2014. Ns 9. C. 277 -281 .
17. www.herrenknecht.com :
Ngay nhdn bei: 14/09/2017
Ngiry gui phan biQn: 29/1 1/2017
Ngay chSp nhqn ddng biri: 10/04/2018
Tn khoa: sr,r co trong thi cong; thi cong an toan;nguy1n nhan gay ra sV co; gidm thieu cac s4r co;phuong phap keo 6ng trqrc tiep
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