ml: 3.2
MASS MIMMEIII’ or smLs

    
   
  
 

A. AVALANCHE
s. LANDSLIDE

c. SLUMP
6

«Y9

  

FLOW

 

SLIDE

 
  
    
 
  

D DEBRIS FLOW
EV EARTH FLOW
F MUD FLOW
I 6' SOIL FLOW l l l

annex clays (Iim lake sedImsnl) and quick sands may quuIIy
in sannuuakes and became collom,

  
 
 
  
   

1. ROCK FALL
2 ROCK SLIDE
3.1’ALUS SHIFT
4. ROCK CREEP

s. SOIL CREE?
s. FROST HEAVE

4

HEAVE

 

 

heavy Isins lall beIuIe PInnIs Iake hold, szeI enn
penelnhe below me glazed IIIIInee, and mass Inuve
IIIeIII IIIuIIIIngI ol mud and que WIII IIIen emu ne
waHrol-mud eIIeII. and III» InerIIaIIIe casrad:
downhdl my weII black roads In any such mudrflood
emu’gency, Ihxlilemng IvsunIIes In IIIe Valkys. Mud
“0145 an a IesIuIe 0' unstable sedimenIs In wIII—dry
IIIInsIes

Thus, IIIe wnIeI Inna sIIeI IIIe (as in Adelaide,
Auslnhi In 1930 can be nusImpIIIe, and III mes Inn
have . Inngdtrm eIIeII In sails and suII loss III.
rombilmlmn III me In InIe suInIIIeI. (allowed by a
sudden squInn unseI III am Is IypiInI III MeaIIeI»
Isnenn Isnus, and m deIssIsIea suIIs, For i dfsxgnu
Inna Iown pIsnneII sIeas III known soII msllbmly
should be lvmded as seIIIeInenI IIIes, snu kep| In
permanem IuIIsI, nIIIsI sIe dtslgnated on soil maps, uI
an be IeseuIeIed

9.5
LEVELS AND LEVELLING

Lewis are Isken lo eIIsuIe |ha| sprdlwly; warh uIsIns
Iun and houses!“ kvd enuugn so Iqu on: can play a|
nInIIIIes wflhmfl IneIn a|l mun; IuwsIusoneeorneI.

mm m ImIs ol Levelling, III wIIIeII IIIe mos! InII.
em and run IIIe InnsI IuIIsIIIe Is IIuI level assumed
by IIIe sIIIIsIe or wsIeI. One esn stays check a
IIuIImnIsI .gsInsI IhEsu horiznn, m nuke sum; mm

232

m 3qu quIs by “5mg I IIIIIe wnIeI III How dnwn II.
Even sophIsIIenIeu InsIIIIInenIs IIII IIIe IIIeIonIIIe use a
bubble IeveI lo seI up "I0 base plale, and IIIen Io eIIeIk
IIIe IeIeseupe Ipins‘ IIIIs wiflI “S bubble beIIIIu
pIeIedII-g wIIII IIII DY swive‘ measures IneIe nIn a law
sIIaneIeII-Is nutnn be IIsIIuInsde and me 9;;qu use
III IsnneIs Ind IIuIneuwneIs

HOSE USUNYIP”) LEVEL A hose level can be made
IquI essIIy-puIInssed InaIeIIsIs, and is useIuI lo
Survey sumo nIeIIes uI evul kIIuIIIeIIes III uIveIsIun
dIsIn, IeIeI a house sIIe IIIIIn comer |o corner, III seI I
wall oI spillway aI I pIeeueII-IInIned level IIIe
IIuIeIIaIs needed sIeIas pnI IngeIIIeI as in mun w-

- 20 III (65 (:1!) III so III dear pIssIII hose, damn
about mm H (2 IneIII

. mus III smpptfi IIuI III InIII IIIe enasoI IIIeeIeII
PInsIIe In», em. WIN a IIIenIIIeI IIIIIe

~ 2 small :qu balls IIIaI IseeII III InsIde Ine eIeaI
pllslic IIIbe below IIIeeuILs (optional!

- 2 sInkes a In In 5.5 IeeII, InsIIIed wIIII IIIe
mazsul‘ellllnl of yqu IIIoIce IIeIIIIIneIIes uI IneIIesI,
dwssmams‘ Ispes qued (W screwed In '0 me sIsIIes
scrv: IIIIIpquose

~ 4 clamps III Inpe l0 mnnKl IIIe Clea! IIoIe |a IIIe
sInIes.

To pIEPin IaI use, unequ one end ind IIII IIIe enIIIe
hose wIIII mIeI. Be InIe A” IIIe hubhks sIe onI III on
hose, IIIIs IsuIIIy eeIuIn WIIII n (flmP‘A‘kly (leaf nose

mee bulk suxes together, Inns level, on a pm 0!
Irwl meme III wand. KeepIng IIIe shakes wnIIIII, InaIII
IIIe wnIeI IeIeI In IIIe eIenI Iubes by ulltlilnpillg and