85 diagram of tunnel boring machine
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7/23/2019 85 Diagram of Tunnel Boring Machine
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TH
TUNN L
BORING M CHINE
SOUTH
Southern
"""" .
What is a tunnel borin
machine (TBM)?
A unnel
boring
machine (TBM) IS
like
a giant drill, but one
t
haI
builds as it
drills.
The
rBM
arriving in Auckland in Juy
s
going to drill two hoes, each
big enough for a hree lane mo torway. It
wHl
first travel north from
Owairaka
to
Waterview
to
dig one tunnel, then
turn
around
at
Waterview and begin its journey back to Owairaka.
Why is the tunnel boring m ~ c h referred to as it TBM?
Saying
the words tunne boring machne is a bit of a mouthful
so we call it a
TBM for
short.
P ~ I I 5 t C , ~ g . c : k S I
g g g ~ 4
....
.
......
iii::::
MTRS
......
••••••
......
0:::::::::::
0E
LOW
O l k ~ y C r n l
Craddock
IUse,.e
. . ..
....-
.-
-._
--
--
- .......
T h ~ simple answer is that
the TBM is like a giant
drill and
it
will
drill
the
two
holes
that
will be the north
and southbound tunnels.
The front section of the
TBM is
called the
shie ld . At
the
front of the shield is
the
cutting
face. The cutting face is like a giant, round
circular cheese grater.
The shield has two jobs, it drills through the
ground
to
create a large hole which it then lines
with concrete segments to form complete rings.
These concrete segments are 2 metres wide
and
450
millimetres thick.
So
the
TBM could also be called a TMM - a
tunnel making machine because
it
not only digs
the tunnel, it also lines the hole
that
it has dug
with concrete segments and completes the
process of making he tunnel.
w
tw. b bu ld .. I ?
TOP
SPEED:
8 C M ~
PER/MIN
H_ ' Ht
cIHlit,o
?
~ p . n d i n a : o n t h e , r o u ~ d
slrengththe
TBM
can
Irave ~ t a
top speed
of B o m l i m e l r e s
m i n u t ~
bu
lke
any ncwengine
It"
going
to
n e ~ 10 b. bro/en n
and
padually
aken
up
to
_k l
s op speed.
EIght
<=IimWH
minul
is
also the
top 01
soan.
DRILL
TO THE
CENT RE
OFTHE EARTH:
#"\ 2655
~
Y E A R S
If O
U
TaM
.
u to
bolt
Sl i fc/lt
doow
n 1"
10
u. •• h h
,
10 .,. woul
d
it a'" I . rue h
the
e ., t,. .
tt..
wetWl
I
is
roIfIJ to take "boot rca' Of our
TBM
10
IraW
2A
kiometres.
This i<>dude.
downtime
wM e tilt machine
is
belnl rmlntained
The eomtre
DlIIIt • •
th II
~ i m a t e l y
6371
kiomeln s
down.
11 we
l a b he 11M
10
be runn\nt it
he sa e
speed
t>
It
wit be
IrM H;n,
wh
le
d
S heWateryiew l u n n e ~
lhen
i would ak
.
~ p . . . . . . . l m a t e l y
265S
years
lor
T8M 10
bose " tln1eltolhe cent,e of
lheear
t>.
I
INJECT
FOAM
IN TO
TH E
SOI
L
Whal
hap
pen. f hi w lll"
1 ,e
ls
du
ck n
tI •
,," d7
Thi
won'
happen as.
ma
te'ial thai hu the
c;Onlistenq
01 foom is
injectedinto u.. sol
tlvoua/l
pipes . he
C U l n ,
head
with
waler. lo help t O' tilt
soi
k>to
a
slurrywhich
can then
be
eully ucavaled.
WhW
mllit 1
M
TBM hawe n_7
How
dHp
v
, ""","",""do
that_ ei re?
The turnds im
o
• tnlI nK.m ot
4S
met,u
below
govnd
al
cerllin
pOints 01 lhe TBM·s journey The
T8M wiN IiiIv,.[
blocalll
a Iaye,
o f ~
hlrd vdcani<:rod.
formed by
Ihe erupl
lOfl
04
a vo>Iuno
in th
e
egion.
a on . Ion,c lime 3io.
H
ow
much d
MS
it ,,,"t?
.....
•••
•
DID
Y U
KNOW
"The
New
Z t r ~ T.a>SXlf
Aaeocyh"s commissiooed
lheWe l c .noected A l - .c e to
buid tM Wa tfrYiew
C""nection.
The
Well-CoMlcted
Al anceis
a
I'oupol
leading e
nain
eerl
ng
tompaniesIhal .....
c r ~ i n 8 closely
logelher. u
th
tir
f>m e
impes.
Th
is traditiondales
bad: to
Saini
a . ~ r a who
is the
palr",,»in
IOf
'flilierymcr,. mnou
s.
mllil"y
engineers gunmlths miners and . nyone els, worked
. th cinooosand e ~ p l o . ; ~ e s .
T a de<gro t" ort .B-look to
Sa
i
n
The tnlIdI<le
cosllSO
nU
i
""
doltan to build
and
lransport toN ... zularn:l I hiS been bui
by
H e r r ~ n k l e c h t .
I Ieacier In manul.cturlnll Ihis type 01
mKhine1n tlltir planl " Guangzhou
ChINo
~ n d arrivei
from
China
Ir
hlly
2013.
B.orbir
lor
prot«llon
and a. I
,e-svl mactinesthat
work
Y n ~ I , o o n d
are _Iways
g l ~ n
femlle nilmu.
-
..
__. __
Wh en wi
t
tl rt wOrk?
I starls wort In Odober alter
t
hn been usembled
and p a s s ~ d ils Warranl
01 Fin
ess (WOF)
II win
lake
three months to
put
t logether .I ter i arrive
In
l ; m d ,
havnC
been broken down inlo plots 10 be traniPOlled
to Auckland.
Why
do we
need
the
TB
M?
By
digging
the tunnel and takng the motorway underground
for
2.4 ki lometres, we
save
the existng
roads.
parks, ri
vers,
houses
and businesses that
are
along the route .
} .
Its a practical solution to easing traffic congestion and building
new roads, though an extremelychallenging one.
The
Waterview
Connection is a Road of National Significance, meaning the benefits
of
the motorway
go
beyondthe
use of
people
in
Auckland.
All
of
New Zealand benefils as
it
will be a major
road
that
is
used to
transport goods and services
arou
nd the country.
I you
.
anllo e MOe ~ b o ' " N_lulond·s
7 ~ O / N . l i o n o l Sfe rIr...:. ¥IsM :
_ . n . t . l . I o o t . n : . m e r . - ~ o n s /
P Iy I s
Res.rve
~
AfordS
-.- .-
.--
___- ---- _
.
. .
24,040
PRECAST CONCRETE
SEGMENTS LINING
THE
TUNNEL
Wk ...
40u
he
I
ninc com. hom'
A
pu'pou-Oul
l lacUiy In
Eist
TamakJ
wi
make lhe
2
metre
wide
sta:momb.l're..:ut
sqmentsMe
made
by eHling cona.te
ll
a
novsbIt mould.
Concrete is poured
into
the
moolds and thenc;ur
ed In
tilt be1 conditions
loensure
h ~ t i
15 strona. Curing CQoeret
d rOt mean... lItal I of . hatw it, but
we
....
.1t Slrorlgor hin wou6d be If t
_ not cured. We
tab
the
utmost a"
.
o
properly CKe
tilt COlIC'
.Q
that
t
eh;e-.es
Ih. equlred strength and h . ness
Tho moulds
aff
lhen used overorKover i galn
to ca51 the
rest
of
lhe
sei'f'MIs
as I
ensures
It\iIt "
the
mg.
wi be
or the aac:t
sin..
Therf
.
be 24.040
concretesegments
n
tot
ar
usrd
o l ne
t
he tUrne
00,000M3
OFSOIL
TO
WIRIQUARRY
Wb
at
hl ppe
nl
o 1M
101
1 h l
is' ...,o ...d r ... h
_
I?
The soil
that
his been &rated
aw¥f
by
the
TBM is
referred
o
as
'spoI nd t s
tak:etloul
of
Ih.
unnel
on a
contilloous
conveyor belt
to
a
sped.1 buiding mad. ust fo, i
It sitl
n
I l s b u d n & ' 2411w-s whie the
wate r I lat
was into
the gfOlllld
r0l1fl
wih the loitll
slowty
seeps out
of
tile
spell.
i ha
s
' d _ a t ~ ' e d th
e
spoi
is lhen
trucked
10 a QU T V in Win,
Sooth
A u c la n d .
For every wo metres that the
T8M
that s the width of
one tunnel
rng
tbe TBM
w
r e ~
approximat
ey )30
cubic melres
01 spoi
When the
TBM
has doni III
job
I wi.
haYe
QU¥.led 800.000 ubfc metres 01 pound.
That s enou&h
to 310
Olympic
sized pooIl
W lpl . pl, be
abla te ' ' ' '
.
. , .
0l0I OM
.we
01
1M to
he
oth
u ?
W
hatlsi
tm . . , . 04
7
The m;chl1l
is
made rom
.numbe, ol<mleri.
ls
but
Ihe main
o n e ~
are:
eople
.
o
WOfk"in
Ih. tunnel
win bnble
o use one
01
the ' eventeen croU-jlllssage. h ~ 1
wi
connectlilt
north
iJId
south bound Watervie hlfwls..
•
th
e
t r ~ c l y r e Isrmdt rom,
specialsorl of
Sleel th'l
10M
been
made
t .
handle
e
xt
......
prulure
• thewirif\83nd motor cables iIIeal made 04
ilnd
weigh aboulIa
onnes
.Ient
•
gold
w
rinlon
the compule
sys
lems andproaram
mible
conlrol
.
-
conveyor belS ife mide
••
m &feI"ed .ubbtr wih
steel
wir
e ;nlo(1:l"«los l
re<J1h
Oalt.yAve
...
"""
""""'"
..
16
H o w m
d. ,..,u .-cf
to w
O
k ilt. mleh ne?
At.nyone ime thetewlll be.bouI: 16people
WOfklna n
he
IBM t
w t.ou.o • crew
headed by
lhe TBM p o m hemKhines
openotmgc
abi n
AS
HEAVY AS
H"",bIa"IsU' em
l .
/In .7
The
machineh,. a diameter
of
14A metres
whicllII
I<orger
th,n tilt runk
of
Tne
Milhula.
Ne
Z
and·s
oldlSt.nd bluest
C
Iff
. ,d
bout Ihe same he/3ht
asa
ou-110fe)
b v i I ~ .
The
TBM
to be used in Waterview
wi
be
he
largesl
IUM
el borinl mlchine
TaM) ev
.
used
in
AuslraJasia.
The TBM Wl11 .bou l3000 OMes.
Thall, equaT
10 1000.000
k,logr...,s g,
750
I e p h ~ n l s . 0.
tilt same
IS
5 anda
quarttf Airbus AJ8QI.
The
lot
.1
1o,"« lh .. u.. TBM
is 87.1_t",s.
almost
10"« is rugby feJd.
It
t t the larI U I I C .....
oll
. rIo
how 1 . , . l l l h . l a r l In bo >Wfd
""''''
fJ
Th
e
TBM
that
Is
going
te
bt
u ~ . d i n W 3 . t u v ~ t s th
10lh
IfratS worid WIh
I
d TM e< of
14.46 e t ~ ,
The 1ltllut
mKhin. II J Jne
lOB
>a$ ,
diameter
eT
17.S26 mel/Rs
and s
eurrently
n
SeattlebeavennJ
aW
l ,
beneilh
ilt ground
THE
B
GGEST:
10th
BIGGEST
17.526m
14.46m
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