Nhu vay chung ta dang thieu ede van ban phap quy quy djnh rd phuong phdp, cdng nghe thi cong cdng trinh nglm trong dd thj dam bao cdc tieu chi md Nghi djnh 39 dua ra nhu Bdo ddm an to[r]
Trang 1C C ( S 6 K Y T H U A T H A T A N G • NANG LUONG • Mdi TRl/dNG
P G S T S L l / U OOfC H A I - R vien triJang thUcing tri/c,
Vien Nghien curu DT va PTHT
K A Z U N A R I Y A S U D A - GO C.ty Ky thuat Yasuda, Nhat Ban
XMnmrnxmnxmrnB ' mum • 0 smro
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s««M»3W«»»*
r*mitoamta»ii-s^ •- ic """ Bsssssnfto !
Trong cuoc song hien noy, ddc bietlo
tgi cdc khu vuc do thj khong the thieu duoc
nhung he thong ho tro cho doi song nhu:
dudng ong cop nuoc, duong cong thodt i
nudc, dudng ong cap go, cop dien vd cdc phuong
tien truyen thong thong tin Hau het cdc duon^ day,
dudng ong do deu duoc chop dudi mat dot ben
trong cdc dudng ong dan ngam Co hoi phuong
phdp chon cdc ong dan ngdm, do Id: phuong phdp
ddo - lap: tuc Id ddo mat ddt len, chon ong ngam
xuong foi lap Igj; phuong phdp khong ddo: khong
ddo mat dot len md se khoan trong Idng dot
Phuong phdp khong ddo cd hoi loqi chinh dd Id:
- Phuong phdp SHIELD: dung mdy de ddo dot
sou dd se xdy dung tung doqn mot d trong hdm vd '
thi cdng phu be mat trong cuo dudng hdm •
^ - Phuong phdp SUISHIN (phuong phdp day):
day cdc dng dan ngdm dd dupe chuan hi trudc do vdo
trong Idng dot., , ,
Trong bdi viet ndy chung toi chi de cap den phuong phdp thi cdng SUISHIN, Id phuong phdp cd nhieu uu diem vugt trgi vd
thich hgp cho viec thi cong cdc dudng dng dan ngdm
IVIot dt/an thi cong cong trinh ngam bang phddng phap day SUISHIN tai Nhat Ban
Ojnh nghTa p h u o n g phap thi cong
SUISHIN - Phuong phap da'y:
Thi cdng bdng phuong phap day Id phuong
phap ehdn dng trdn bode dng h'lnh chO nhat
xuing jdng dlt Phuong phap chon dupe tiln
hdnh bdng each tao hai Id ngang rdi dao dudng
nglm tUddu np sang d i u kia Ngudi ta gpi phia
bat d i u dudng h i m Id h i ddng khdi hdnh, va
phia cdn lai Id hd dUng diem d i n cull cijng Ddt
may ddo (mdy ddo dudng hdm) xudng Idng ddt
tu h i dUng khdi hdnh, sau dd ddng thdi van
hdnh mdy ddo dudng h i m vd day may ndy vdo
trong Idng d l t bdng pittdng dp luc d i u da dupe
Idp ddt phia sau cua mdy Pittdng dp luc ddu se
day I n g ddn vdo trong Idng d l t vd tiln hdnh ndi
lien tuc dng ddn dd vdo khodng trdng md dupe
tao ra do pittdng dp lue d i u rut lai
Nguyen ly hoat dong cua p h u o n g phap
SUISHIN:
Ddo h i ddng khdi hdnh vd hd dung diem d i n
culi ciJng d hai d i u eua dudng dng ngdm c i n Idp
ddt
- Sd dung pittdng dp luc ddu de day may ddo tU
h i ddng khdi hdnh (da dupe Idp ddt d l y du ede thilt
bj day) xuyen trong Idng dlt
l i p dJM ing diy ti£p
theo 6 dfiy
iMavaav Semi-Shield I
Hint! 1: Sd do khai quit phUdng phap day SUISHIN
- L l n lupt ndi them eac doan dng nglm vdo tilp
sau cua mdy dao
Tilp tue day hang I n g nglm dd bdng may pit-tdng ep d i u eho tdi khi mdy dao tdi dupe h i ddng diem d i n culi cung
Tdm lai, phuong phap SUISHIN la phuong phdp Idp dat dudng I n g nglm thdng ^iOa hai hd ddng khdi hdnh vd h i ddng diem d i n eudi ciinq
Thi cong bdng phuong phap day SUISHIN:
Thi cdng bdng phuong phdp day SUISHIN bao
N G U d l XAY DONG SO T H A N G 9 - 2 0 1 1
/
Trang 2PHUONG PHAP SUISHIN THI CONG CONG TRJNH NGAW
j-issa^
Hinh 2 : Lap dat may dao
gdm 10 budc
CO ban nhu sau:
1 Dao hd ddng khdi hanh: tao Id
ngang eua hd dUng phu hpp vdi dudng kinh ong d i n
2 Lip dat may dao: l i p
dat eac thilt bi
c i n thilt trudc, sau dd dua may dao xudng h i dUng
3 Bit dau quy trinh day day may dao bang
pit-tdng ap luc d i u dupe g i n phi'a sau; g i n d i u khoan
vao d i u may dao va lam cho d i u khoan quay va
day
4 Day may dao vao: hoan thanh qua trinh day
may dao bdng Pittdng ap lue d i u
5 Dam bao khoang trong cua ong day ru\ pittdng
ap lue d i u lai de dam bao khoang trdng dng day
6 Tha dng ndi xudng: dat Ing ndi xudng giiJa
may dao da dupe day vao Idng d l t va pittdng dp lue
7 L i p •''^^**
dat dng ndi
rdi day
thao tac
gilng budc
3, quay d i u
khoan d
may day va
day Ing n l i
p i t t d n g
bdng ap luc
d i u
,/^-^\:
Hinh 3: Lap dat ong noi rdi day
8 i-ioan thanh qua trinh day dng ndi: hoan thanh
qua trinh day dng ndi bdng each tiln hanh day lap
lai tuin tu gilng budc 6
9 Lam cho may dao tiin vi id dung d diem din
eudi cun^ lap lai cac thao tac day lam eho may dao
tien ve Id ddng d diem culi cung
10 Thao may dao: Nhle may dao ra khdi h i
9 «
o o
^=jd\
[L„"::i:::™i" v>«3
Hinh 4: Lam cho may dao tiSn vS Id ddng diem ddn cuoi cung
dUng diem d i n eudi cung sau khi da hoan thdnh viec
lap dat Ing d i n , thao bd toan bd cdc thilt bj day
Vdi eac uu diem vupt trdi, phuong phdp SUISHIN
Qua trinh lip dat may dao, thik bi day ong ndi cua mot dif an tai Nhat Ban
(phuong phap day) nen dupe quan tam ddu tu, nghien eUu, chuyen giao cdng nghe, khuyin khich
ap dung trong khi thi cdng cac cdng trinh nglm trong ddthi
Vdn d l cong trinh ngam trong Luat Dd thj: Theo xu hudng phat trien cua dd thi hien dai, cac cdng trinh nglm trong dd thj khdng the thilu va ngay cang dupe quan tam ddu tu xay dung Trong he thing van ban phap quy hien nay, cd mot s i van ban
d l cap d i n cdng trinh nglm dd thi Trong dd ed Nghj djnh sd 39/2010/NQ-CP cua Chinh phu ban hanh ngay 07/4/2010 ve" qudn ly khdng gian xay dung nglm dd thj Nghj djnh ed hieu lue thi hanh ke tir ngdy 25/5/2010 vd thay t h i Nghj djnh s6
41/2007/ND-CP ngay 22/3/2007 eua Ctiinh phu y'e
xay dung nglm dd thj Nghj djnh bao gdm 5 chuong
vd 33 dieu, dua ra cdc quy djnh vl quy hoach, khao sat, thilt ke, xay dung, qudn ly vd sddung khong gian nglm trong dd thj
Tai nriue 3 chuong III v l "Thi cdng xdy dung cong trinh nglm trong dd thj" Nghj djnh da dua ra cdc quy djnh khi thi cong xdy dung cdng trinh dudng day, dudng dng nglm, hao, cdng be ky thuat (Dilu 20) va cdng trinh giao thong nglm, cdng cdng nglm, tuy nen, ddu m i l ha t i n g ky thuat ngam (Dilu 21) Tuy nhien, Nghj djnh chua cd quy djnh eu the ndo ve viec
sd dung cdng nghe, phuong phdp thi cdng cong trinh nglm dd thj nhu "khuyin khich dp dung phuong phdp ndo, phai ddo hay khdng dao?"
Nhu vay chung ta dang thieu ede van ban phap quy quy djnh rd phuong phdp, cdng nghe thi cong cdng trinh nglm trong dd thj dam bao cdc tieu chi
md Nghi djnh 39 dua ra nhu Bdo ddm an toan cho ngudi vd cdng trinh, ban e h l anh hudng d i n hoat ddng binh thudng cua dd thj, cdc cdng trinh Ian can
vd ben tren, bao dam ve sinh mdi trudng
Trong Luat Dd thj (du kiln se trinh Qudc hdi cho
y kiln vdo ky hpp d i u ndm 2012) cdn dua ra cdc quy djnh v l cdng trinh nglm trong dd thj Dd se Id cd sd eho cdc ehij d i u tu, nhd t h l u , nhd phdt trien dd thj tham khdo vd thuc hieri cung nhu giup cdc cP quan nha nudc ed tham quyin trong viec phe duyet, d p phep xdy dung cdng trinh ngdm trong dd thj.Q
NGUdl XAY DUNG SO THANG 9 - 2 0 1 1