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Dick McDonald

Tunneling Safety & Logistics dickmac@slac.stanford.edu

 April 20, 200!

LCLS Conventional

Facilities

Dick McDonald

Deputy Systems Manager 

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Dick McDonaldTunneling Safety & Logistics dickmac@slac.stanford.edu April 20, 200 2

Tunnel Safety & Logistics

Site Layout

Tunnel & "a#ern $%Sections

Tunnel Safety

Tunnel tilities

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Dick McDonaldTunneling Safety & Logistics dickmac@slac.stanford.edu April 20, 200 '

Overall Site Plan

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Dick McDonaldTunneling Safety & Logistics dickmac@slac.stanford.edu April 20, 200 (

Tunnel Layout

)S*

+ TunnelLengt - /.

Min co#er - 20

Ma1 co#er - 0

$%)ay TunnelLengt - (.(

Min co#er - (0

Ma1 co#er - 0

34+ "a#ernLengt - 22/

Min co#er - 0

Ma1 co#er - !00

 Access TunnelLengt - '2(

Min co#er - 20

Ma1 co#er - !00

56)T+

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Dick McDonaldTunneling Safety & Logistics dickmac@slac.stanford.edu April 20, 200

FEH Cavern X-Section

34+ "a#ern(. 7ide

'2. +ig

! )ock do8els

41ca#ation Se9uence :

Lattice ;irder &

!2< Sotcrete

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Dick McDonaldTunneling Safety & Logistics dickmac@slac.stanford.edu April 20, 200

UH Tunnel X-Section

+ Tunnel 2! 7ide !. +ig

"onca#e in#ert

designed to

resist uplifting

2 tick = conca#e

section to increase

floor rigidity

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Dick McDonaldTunneling Safety & Logistics dickmac@slac.stanford.edu April 20, 200 /

Sequential Excavation & Suort Cycle

!. 41ca#ate 8it road eader

2. Scale & prepare surface for sotcrete

'. Apply '< sotcrete

(. >nstall girder section

. >nstall rock do8els as re9uired

. Apply '< sotcrete

/. Start ne1t cycle

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Dick McDonaldTunneling Safety & Logistics dickmac@slac.stanford.edu April 20, 200

To Hea!ing & ortal Suort

Top eading 8it lattice girders

?ortal support

)ock do8els

Lattice girders

 Sotcrete

tilities

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Dick McDonaldTunneling Safety & Logistics dickmac@slac.stanford.edu April 20, 200

"oa! Hea!er at #or$

0 ton )oad +eader 

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Dick McDonaldTunneling Safety & Logistics dickmac@slac.stanford.edu April 20, 200 !0

Load, +aul and Dump L+DB

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Dick McDonaldTunneling Safety & Logistics dickmac@slac.stanford.edu April 20, 200 !!

Sotcrete ?ump

?ump can Ce

at surface or underground

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Dick McDonaldTunneling Safety & Logistics dickmac@slac.stanford.edu April 20, 200 !2

Construction Safety %tes

Tunnel Safety

 Esual Safety >tems 

+ard +ats

4ye & 4ar ?rotection

Steel Toe Foots

 ACo#e items are standard issue to employees & #isitors entering constructionareas.

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Dick McDonaldTunneling Safety & Logistics dickmac@slac.stanford.edu April 20, 200 !'

Tunnel Safety %tes

Tunnel )e9uired ??4 are issued to

employees and #isitors going underground

MS+A Appro#ed Ligt

MS+A - Mine Safety & +ealt Administration

Self )escuer "on#erts carCon mono1ide to carCon dio1ide

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Dick McDonaldTunneling Safety & Logistics dickmac@slac.stanford.edu April 20, 200 !(

Tunnel '!!itional "equire! PPE

Self rescuer  "ap lamp )escuer and cap lamp in use

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Dick McDonaldTunneling Safety & Logistics dickmac@slac.stanford.edu April 20, 200 !

Tunnel Safety

Typical Tunnel +aGardsTigt 8orking spaces, lo8 ligt

ne#en 8orking & 8alking surfaces

7et and muddy7orking in close pro1imity to large e9uipment

3alling rocks, eart and sotcrete

tility supply lines

Lack of #entilation5oise

Metane gas

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Dick McDonaldTunneling Safety & Logistics dickmac@slac.stanford.edu April 20, 200 !

Tunnel Classification

Tunnels are "lassified as ;assy, ?otential

;assy or 5on gassy

Madera sandstone can a#e small isolated

pockets of metane gas so our tunnels are

potential gassy

49uipment and electrical a#e to Ce MS+A

appro#ed for potential gassy7e are not o#erly concerned aCout gas, Cut are

taking te ne1t step to Ce safe

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Dick McDonaldTunneling Safety & Logistics dickmac@slac.stanford.edu April 20, 200 !/

Tunnel tilities

"ompressed air E for pneumatic tools

7ater E for tool use and dust control4lectrical po8er E for e9uipment & ligting

Hentilation E for fres clean air 

"ommunication & Data

Discarge 8ater E e1cess 8ater used in

construction

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Dick McDonaldTunneling Safety & Logistics dickmac@slac.stanford.edu April 20, 200 !

()* Tunnel

Typical tunnel utilities

?o8er & ligts

Hentilation

"om. & Data

7ater 

 Air 

Discarge

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Dick McDonaldTunneling Safety & Logistics dickmac@slac stanford edu April 20, 200 !

Tyical +ent Fan an! Lig,ts

Hent fan & ligt stringer 

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