7/23/2019 85 Diagram of Tunnel Boring Machine

http://slidepdf.com/reader/full/85-diagram-of-tunnel-boring-machine 1/1

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