IS 13063: Code of practice for structural safety of buildings on shallow foundations on rocks

22 Pages·1991·2.2 MB·English

by  Bureau of Indian Standards

इंटरनेट मानक
Disclosure to Promote the Right To Information
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in order to promote transparency and accountability in the working of every public authority,
and whereas the attached publication of the Bureau of Indian Standards is of particular interest
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education and knowledge, the attached public safety standard is made available to promote the
timely dissemination of this information in an accurate manner to the public.
“जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ”
Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru
“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 13063 (1991): Code of practice for structural safety of
buildings on shallow foundations on rocks [CED 48: Rock
Mechanics]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee””
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”

Indian Standard
STRUCTURALSAFETYOFBUILDINGSON
SHALLOWFOUNDATIONSONROCKS-
CODEOFPRACTICE
UDC 624’151’5 : 624’121 : 006’76

0 BIS 1991
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
-hfuy 1991 Price Group 9 I
kcoR scinahceM lanoitceS ,eettimmoC CED 48
.
FOREWORD
sihT naidrl dradnatS was detpoda yb eht uaeruB fo naidnI Standards, retfa eht tfard dezilanif yb
eht kcoR scinahceM lanoitceS eettimmoC had neeb devorppa yb eht liviC gnireenignE noisiviD
.licnuoC
wollahS snoitadnuof revoc hcus epyt fo snoitadnuof ni hcihw eht daol refsnart is yltcerid no eht
gmraeb strata and esohw htdiw is retaerg than its .htped htpeD fo noitadnuof is yllamron up ot
3 m morf larutan dnuorg .level
ecniS tsom derehtaewnu tcatni skcor era regnorts and less elbisserpmoc than ,etercnoc eht
noitanimreted fo elbawolla gniraeb erusserp no hcus skcor yam eb .yrassecennu ,revewoH tcatnI
kcor masses tuohtiw derehtaew ,senoz stnioj ro rehto seitiunitnocsid era deretnuocne ylerar ni
.erutan ehT ecnetsixe ro noitacol fo cificeps seitiunitnocsid fo noitadnuof skcor netfo niamer
nwonknu litnu eht kcor mass is desopxe yb .noitavacxe ,suhT ngised sreenigne dluohs eb erawa
fo sregnad detaicossa htiw eht ,ytienegorteh yportosina and elbaruovafnu kcor .snoitidnoc sihT
is esuaceb gnissertsrevo a kcor noitadnuof yam tluser ni egral laitnereffid stnemelttes stlit ro
spahrep neddus .eruliaf
nI eht noitalumrof fo this standard eud egathgiew has neeb nevig ot eht standards and secitcarp
gniliaverp ni tnereffid seirtnuoc and that ni ruo .yrtnuoc

roF eht esoprup fo gnidiced rehtehw a ralucitrap tnemeriuqer fo this standard is deilpmoc ,htiw eht
lanif ,eulav devresbo ro ,detaluclac gnisserpxe eht tluser fo a tset ro ,sisylana shall eb dednuor ffo ni
ecnadrocca htiw SI 2 : 1960 seluR‘ rof gnidnuor ffo laciremun seulav ( .‘)desiver ehT rebmun fo
tnacifingis secalp deniater ni eht dednuor ffo eulav dluohs eb eht emas as that fo eht deificeps eulav
ni this standard.
SI 1991:36031
Indian Standard
STRUCTURALSAFETYOFBUILDINGSON
SHALLOWFOUNDATIONSONROCKS-
CODEOFPRACTICE
1 EPOCS ecneuqes and pid fo eht strata and fo eht dnuorg
retaw .snoitidnoc
1.1 sihT standard syal nwod eht lareneg
4.3.2 ehT etis ecnassiannocer dluow pleh ni
stnemeriuqer rof larutcuts ytefas fo buildings
gnidiced eht erutuf emmargorp fo dleif -agitsevni
gnivah wollahs snoitadnuof no kcor mass.
,snoit that is, ot assess eht deen rof yranimilerp
1.2 ehT snoisivorp fo this edoc seod ton revoc ro deliated .snoitagitsevni sihT dluow osla pleh
eht laiceps snoitidnoc/stnemeriuqer rof -adnuof ni gninimreted eht epocs fo ,krow dohtem fo
snoit rednu elisnet .sdaol noitarolpxe ot eb ,detpoda dleif stset ot eb -noc
detcud and evitartsinimda tnemegnarra deriuqer
2 SECNEREFER rof eht .noitagitsevni erehW deliated dehsilbup
noitamrofni no eht lacinhcetoeg noitidnoc is ton
ehT naidnI Standards detsil ni xennA A era ,elbaliava an noitcepsni fo etis and yduts fo
yrassecen stcnujda ot this standard. lacihpargopot serutaef era lufpleh ni gnitteg
noitamrofni tuoba ,lios kcor and dnuorg retaw
3 YGOLONIMRET .snoitidnoc etiS ecnassiannocer sedulcni a yduts
fo lacol ,yhpargopot ,snoitavacxe ,seniver -rauq
roF eht esoprup fo this standard, eht snoitinifed
,seir ,stnempracse ecnedive fo noisore ro land
nevig ni SI 2809 : 1972 and SI 1904 : 1986 shall
,sedils ruoivaeb fo gnitsixe serutcurts at ro raen
.ylppa eht ,etis retaw marks, larutan ,noitategev -niard
ega ,nrettap noitacol fo ,spees springs and
4 ETIS SNOITAGITSEVNI AND REHTO
swamps. noitamrofnI no emos fo eseht yam eb
LARENEG SNOITIDNOC
deniatbo morf lacihpargopot maps, lacigoloeg
maps, lacigolodep and lios yevrus maps and
4.1 evitcejbO fo etiS noitagitsevnI
lairea .shpargotohp
ehT evitcejbo fo yna etis noitagitsevni shall eb
rof eht noitanimreted fo eht :sgniwollof 4.4 yranimilerP noitarolpxE
)a ehT retcarahc fo ,dnuorg noitacifitnedi fo ehT epocs fo yranimilerp noitarolpxe is detcirtser
kcor sepyt rehtegot htiw rieht -iunitnocsid ot eht noitanimreted fo ,htped ,ssenkciht tnetxe
seit hcihw dnet ot ecneulfni eht ruoivaheb and noitisopmoc fo gniylrevo lios strata, noitacol
fo kcor mass [ ees SI 11315 ( Parts 1 ot fo kcor and dnuorg retaw and osla ot niatbo
11 ;I) etamixorppa noitamrofni gnidrager htgnerts and
ytilibisserpmoc fo suoirav strata. gniruD -erp
)b retcarahC fo dnuorg ,retaw tnemerusaem
yranimil ,noitagitsevni lacisyhpoeg sdohtem era
fo cirtemozeip serusserp and noitacol fo
lufesu .sediug
eht erom elbissimrep .senoz
)c gnireenignE seitreporp fo eht skcor as 4.4.1 Geophysical Investigations
denimreted yb yrotarobal and dleif .gnitset
lacisyhpoeG syevrus ekam esu fo ecnereffid ,ni
lacisyhp seitreporp ekil citsale ,suludom -irtcele
4.2 gnitsixE noitamrofnI
lac ,ytivitcudnoc ytisned and citengam -SUS
nI saera hcihw evah ydaerla neeb ,depoleved ytilibitpec fo lacigoloeg snoitamrof ni eht aera
egatnavda dluohs eb nekat fo gnitsixe lacol ot etagitsevni eht .ecafrusbus Out fo eht ruof
,egdelwonk sdrocer fo lairt pits and erob ,seloh sdohtem fo lacisyhpoeg ,syevrus ,yleman
,cte ni eht ytiniciv and ruoivaheb fo gnitsixe ,cimsies ,lacirtcele citengam and ytivarg ,syevrus
,serutcurts ylralucitrap esoht fo a erutan ralimis ylno cimsies evitcarfer syevrus era ylediw desu
ot that fo eht desoporp .serutcurts nI hcus ni lacinhcetoeg .snoitagitsevni
,sesac noitarolpxe yam eb detimil ot gnikcehc
that eht gnitsixe dnuorg snoitidnoc era ralimis 4.4.1.1 Seismic Survey
as ni .doohruobhgien
ehT cimsies yevrus dohtem sekam esu fo eht
noitairav fo citsale seitreporp fo eht strata
4.3 etiS ecnassiannoceR
hcihw tceffa eht yticolev fo eht kcohs sevaw
4.3.1 fI eht gnitsixe noitamrofni is ton -iffus gnillevart hguorht ,meht thus gnidivorp eht
tneic ro is ,evisulcnocni eht etis dluohs eb lufesu noitamrofni tuoba eht ecafrusbus -amrof
derolpxe ni liated os as ot niatbo a egdelwonk .snoit sihT dohtem has eht gnidnatstuo -tnavda
eht fo ,epyt ,ytimrofinu ,ecnetsisnoc ,ssenkciht sega fo gnieb ylevitaler paehc and dipar ot ylppa

1
Is 13063:1991
and gnicneulfni egral emulov fo .ssam-kcor ehT a) Percussion drilling
gniwollof noitamrofni ni tcepser fo eht kcor
sihT dohtem is erom elbatius ni -redluob
mass is deniatbo morf eseht :stset
suo and yllevarg strata. As noissucrep
a) noitacoL gnd noitarugifnoc fo deb kcor gnillird seod ton edivorp us neve eht
and lacigoloeg serutcurts ni eht sub- evitatneserper samples, yeht era ton
;ecafrus elbatius rof luferac .noitagitsevni
b) ehT tceife fo seitiunitnocsid ni kcor mass
b)
nac eb detamitse yb gnirapmoc eht in situ Core-drilling
lanoisserpmoc evaw yticolev htiw -obal An tcejbo fo eht gnillird is ot niatbo kcor
yrotar cinos yticolev fo tcetni eroc -niatbo seroc rof noitaterpretni and .gnitset tI is
de morf eht emas kcor mass. yrassecen ot niatbo tnec tnecrep eroc
RQD tnecrep 1 yticoleV oitaR yrevocer as raf as .elbissop oT erusne a
lufsseccus gnillird ,noitarepo eht -wollof
= ( LV/FV ”) x 100
gni stcepsa dluohs eb :derebmemer
erehw
9 ehT gnillird seitilicaf gnittimrep seroc
lanoisserpmoc evaw yticolev
VF = fo at tsael NX ezis ( 54 mm retemaid )
ni kcor mass, and
and gnirutaef split elbuod ebut eroc
lanoisserpmoc evaw yticolev ni slerrab ot eziminim gnillird .snoitarbiv
VL =
tcatni kcor .eroc
)ii tl dluohs osla edulcni rof gnimrofrep
4.4.1.2 roF cimsies ,dohtem xidneppA B ot retaw erusserp .stset
SI 1892 : 1979 yam eb .derrefer )iii noitanimaxE fo erob eloh walls yb erob
eloh saremac dluohs osla eb .deredisnoc
4.5 Detailed Exploration
)vi seroC dluohs eb dehpargotohp as noos
deliateD snoitagitsevni wollof yranimilerp -ni as elbissop and dluohs eb ylluferac
noitagitsev and dluohs eb dennalp no eht basis
,dekram decalp ni evitcetorp wrappings
fo data deniatbo gnirud ecnassiannocer and
ni eht eroc sexob and ylreporp .derots
yranimilerp .snoitagitsevni deliateD noitagitsevni
sedulcni eht :gniwollof )v A citametsys dohtem dluohs eb desu
rof lacinhcetoeg gniggol fo seroc hcihw
)a nepO tip trials, dluohs edulcni eht yrotsih fo ,gnillird
)b yrotarolpxE ,gnillird rof ,elpmaxe epyt fo ,tib etar fo gnillird
and retaw tset data, eroc ,yrevocer
)c ,gnilpmaS
RQD, gnirehtaew and noitpircsed fo
)d yrotarobaL ,gnitset and .kcor
)e dleiF .gnitset )iv hcaE erob eloh shall niatnoc eno ’
retemozeip tes at eht mottob fo eht
4.5.1 Open Pit Trials erob eloh os that ecno dellatsni -ozeip
sretem nac eb devresbo revo an -dnetxe
ehT dohtem fo gnirolpxe yb nepo tip stsisnoc fo de .doirep
gnitavacxe lairt pits at etis and ybe reht gnisopxe

eht kcor ecafrus rof lausiv ,noitcepsni lacigoloeg )iiv fI dnuorg retaw niatnoc lufmrah -ehc
mapping, dleif gnitset and rof gniniatbo ,slacim its etahplus tnetnoc and Hp
in situ
kcor samples rof yrotarobal .gnitset sihT eulav shall eb derusaem yb lacimehc
dohtem is yllareneg desu rof small shtped sisylana fo dnuorg .retaw
serussif and senoz fo kaew skcor hcihw dluow
4
pukaerb ni eroc .lerrab Shot drilling
ehT metsys is desu no egral retemaid
4.5.2
Exploratory Drilling ,seloh that is, revo 150 .mm euD ot
ehT esoprup fo a gnillird noitagitsevni is :ot ytissecen fo gniniatniam eht stohs ni
etauqeda tcatnoc htiw eht gnittuc tib and
a) mrifnoC eht lacigoloeg ,snoitaterpretni \
eht ,noitamrof seloh denilcni revo 5” ot
b) enimaxE eht seroc and erob seloh ot 6” nac ton eb dellird .ylirotcafsitas ehT
enimreted eht ytilauq and scitsiretcarahc metsys is tnereffid morf rehto sepyt fo
fo eht kcor mass, eroc sgnillird esuaceb eht resraoc sgnittuc
od ton nruter ot eht ecafrus tub era -ucca
4 ydutS eht dnuorg retaw ,noitidnoc and
detalum ni a pihc puc yletaidemmi evoba
4 edivorP seroc rof yrotarobal gnitset and eht tib and ereh eht dellihc tohs is desu as
cihpargortep .sisylana an evisarba ni ecalp fo eht llird .daeh
4.5.2.1 suoiraV sdohtem fo yrotarolpxe gnillird
4.6 Sampling
evah neeb debircsed ni SI 1892 : 1979. -wolloF
gni sdohtem era dednemmocer rof noitarolpxe 4.6.1 kcoR samples ylnommoc desu ni -arobal
ni rock mass: yrot gnitset era depmul samples, kcolb samples

2
IS 13063 : 1991
and eroc samples. SI 9179 : 1979 dluohs eb lasrevinu noisserpmoc gnitset .enihcam roF
derrefer ot rof sdohtem fo elpmas .noitaraperp gniyrrac tuo this tset and sisylana fo eht tset data
snoisivorp fo SI 9143 : 1979 shall :b deilpmoc
4.6.2 kcoR lumps era deniatbo morf desopxe .htiw
kcor snoitamrof ro seceip fo kcolb samples.
,revewoH eroc selpmaS yam eb desu as depmul 4.7.4
Brazilian Test
samples.
tI is an tceridni dohtem fo gnitamitse eht elisnet
4.6.3 htgnerts fo kcor .lairetam nI this, a lacirdnilyc
Block Samples
kcor nemiceps gniyl no its sides is dedaol
hcuS samples nekat yawa morf eht kcor -amrof yllacirtemaid htiw noisserpmoc daol os as ot
noit shall eb desserd ot a ezis tneinevnoc rof gnirb tuoba a ylmrofinu detubirtsid elisnet stress
gnikcap ot tuoba 100 mm x 75 mm x 75 .mm revo eht ,lacitrev lartnec and lacirtemaid .enalp
ynaM semit a egral skcolb fo ezis 300 mm sihT tset dluohs eb detcudnoc gnidrocca ot eht
X 300 mm X 300 mm era bo demat morf etis snoisivorp fo SI 10082 : 1981.
and snemiceps fo deriuqer sezis era deraperp ni
eht .yrotarobal 4.7.5
Direct Shear Strength Tests
4.6.4 eroC esehT stset yam eb detcudnoc tuohtiw lamron
Samples
stress ro htiw lamron stress no raehs .senalp
eroC deniatbo morf eroc gnillird ro tohs gnillird esehT stset era detcudnoc rof gniraehs hguorht
ssecorp era desu as eroc samples. tcatni kcor nemiceps as llew as gnola eht kaew
,senalp rof ,elpmaxe stnioj ,secafrus gniddeb
4.7 Laboratory Testing ,senalp .cte
ehT htgnerts fo eht kcor lairetam yam eb
4.7.6
detamitse yb snaem fo yrotarobal stset no tcatni UItra Sonic Interferometry Tests
kcor .snemiceps tsoM yltneuqerf desu -obal esehT stset era detcudnoc no eroc elpmas ot
yrotar stset era debircsed ni 4.7.1 ot 4.7.6. erusaem eht emit fo levart fo evaw-p ni kcor
lairetam and neht eht evaw-p yticolev and citsale
4.7.1 Point Load Strength Index Test suludom fo kcor lairetam is .detaluclac tI is a
kciuq and paehc tset rof gninimreted eht citsale
sihT tset is yrev tsaf and paehc rof gnitamitse
suludom fo tcatni kcor .lairetam
eht tniop daol htgnerts xedni ( Is .) ehT tset
yam eb detcudnoc no eroc seceip fo htgnel erom
than 5‘1 semit eht .retemaid snoisivorP fo 4.8 In Situ Tests
SI 8764 : 1978 shall eb deilpmoc htiw rof this kcoR htgnerts stset era demrofrep esuaceb kcor
.tset mass niatnoc suoirav seitiunitnocsid and
may
enalp fo slippages hcihw secuder its htgnerts ot
4.7.2 Point Load Lumped Strength Index Test a .noitcarf gniwolloF in situ stset no kcoR
masses era .dednemmocer
sihT tset is detcudnoc no pmul seceip fo kcor
.lairetam ehT htped fo eht nemiceps (
D ) 4.8.1
neewteb eht stniop dluohs eb less than eht htdiw Plate Load Test

fo eht nemiceps tub dluohs eb erom than eno etalP daol tset shall eb demrofrep no eht
driht htdiw fo eht .nemiceps tnio P daol pmul noitadnuof skcor gnidrocca ot SI 1888 : 1981
htgnerts xedni ( LI ) is detaluclac yb eht -wollof and a evruc neewteb erusserp no etalp versus its
gni :alumrof tnemelttes is .deniatbo Using -elttes-erusserp
tnem evruc eht elbawolla gniraeb yticapac
P gnidnopserroc ot eht elbissimrep mumixam
It = ( DW)0’75 x 2/570
tnemelttes fo noitadnuof nac eb detaulave as
erehw rep 8 fo SI 12070 : 1987. sibT evruc is osla used
ot etaluclac eht tnemelttes fo eht gnitoof rof eht
LI = tniop daol pmul htgnerts ,xedni ni
lautca gniraeb erusserp no .meht
;2mc/gk
eht kaep ,daol ni kg, at ;eruliaf and ETON - latnoziroH etalp daol test yam eb -ooc
P =
detcud where lacitrev etalp daol test si ton .elbisaef
eht lanoitces-ssorc aera fo derutcarf
(DW)=
,ecafrus ni ;zmc
4.8.2 Block Shear Test
laixainU evisserpmoc htgnerts qc is detaler ot kcolB raehs tset shall eb detcudnoc no eht
tniop daol pmul htgnerts xedni :yb noitadnuof skcor as rep SI 7746 : 1975
in situ
ot etaulave eht raehs scitsiretcarahc fo eht kcor
15 x LI
qc 5
mass. esehT stset shall eb deirrac tuo gnola eht
ecafrus lellarap ot eht esab fo eht .gnitoof nI
4.7.3
Uniaxial Compressive Strength Test
esac fo detnioj/detanimal kcor mass, eseht stset
sihT tset is detcudnoc no eht eroc samples ro shall osla eb detcudnoc gnola eht noitanimal
kcolb samples gnivah htgnel tuoba 0’2 and 0’3 senalp ro tnioj senalp ot assess eht gniraehs
semit eht htdaerb/retemaid fo eht elpmas no eht scitsiretcarahc gnola eht .senalp etercnoC kcolb
3
IS 13063 : 1991
raehs tset shall osla eb deirrac tuo no eht in situ 4.9.3.2 Depth of holes:
noitadnuof skcor ot assess eht raehs -siretcarahc
a) ehT htped fo llird eloh woleb eht -nuof
scit fo tnioj neewteb eht kcor mass and eht
noitad level dluohs eb lauqe ot flah fo
.etercnoc
evitceffe htdiw fo eht noitadnuof metsys
.
ni esac fo evissam and dnuos .skcor
4.8.3
Pressure Meter Test
b) nI yletaredom detnioj and detailof ,skcor
erusserP retem tset swolla rof a tcerid -reted
eht htped fo llird seloh woleb eht -adnuof
noitanim fo eht htgnerts fo kcor mass gnidulcni
noit level dluohs eb lauqe ot eht evitceffe
seitiunitnocsid and gnirehtaew rof ngised fo
htdiw fo eht noitadnuof .metsys
noitadnuof no kaew .skcor
4 nI ylivaeh detnioj and derehtaew skcor
4.8.4 laixainU gnikcaJ tseT as rep SI 7317 : 1974 eht htped fo llird seloh woleb eht -adnuof
yam eb detcudnoc no eht owt etisoppo walls fo noit level dluohs eb lauqe ot eciwt eht
a tfird ro yrellag ot enimreted eht suludom fo evitceffe htdiw fo eht noitadnuof .metsys
noitamrofed fo kcor mass.
4 llirD seloh shall dnetxe edisni eht kcor
mass ot a muminim htped fo 3 .m
4.8.5 cimsieS evitcarfer syevrus era detcudnoc
ot etaeniled eht kcor eliforp and ot erusaem eht e) nI eht esac fo dilos kcor woleb detnioj
yticolev fo sevaw-p ni kcor mass. kcor eht llird eloh shall dnetxe woleb eht
snoitadnuof as rep )b( and )c( evoba as
4.9 eciohC of Method etairporppa ro flah eht evitceffe htdiw
otni dilos kcor revehcihw is .retrohs
4.9.1 ehT eciohc fo dohtem fo noitarolpxe and 4.9.4 erehW eht kcor is ton desopxe no eht
eht stset sdneped nopu eht erutan fo ,dnuorg
,ecafrus eno eloh shall eb dellird rof yreve -003
,yhpargopot ecnatropmi and ezis fo gnidliub
500 2m fo eht aera ot wonk tuoba eht ecafrusbus
and .tsoc
.snoitamrof fI eht htped fo kcor is ylralugerri
gniyrav htiw eht tnecajda ,seloh erom seloh shall
4.9.2 nI esac fo ylthgil dedaol noitadnuof ( wall
eb dellird ot ylriaf etamitse eht kcor .eliforp
sgnitoof up ot eerht yerots lautca gniraeb
ehT airetirc rof htped fo eloh shall eb emas
erusserp no noitadnuof up ot 20 t rep erauqs as 4.9.3.2.
ertem ) yam eb less than efas elbawolla erusserp
rof tsekaew kcor and ezis fo noitadnuof ni hcus 4.9.5 fI eht noitadnuof kcor sneppah ot eb emil
sesac dluow eb dediced yb rehto .snoitaredisnoc enots and etimolod detaicossa htiw dnuorg retaw
nI hcus ,sesac ti dluow eb etauqeda ot erusne ,wolf ereht is a ylekil ecnahc fo noitulos seitivac
that yna epyt fo kcor rehto than redluob stsixe .htaenrednu nI hcus ,sesac llird seloh shall eb
at noitadnuof .level dellird up ot htped fo at tsael eno and flah emit
eht evitceffe htdiw fo eht noitadnuof woleb eht
4.9.3 erehW kcor is desopxe revo egral aera fo noitadnuof .level
gnidliub roirp ot noitcurtsnoc ro lliw eb desopxe
retfa ,noitavacxe lausiv noitcepsni fo eht kcor 4.9.6 fI eht noitadnuof kcor sneppah ot eb
ecafrus sedivorp a yrev elbailer etamitse fo eht detadilosnoc sand ;kcor silt enots ro yalc elahs

epyt and ytilauq fo kcor and eht seitiunitnocsid htiw ylekil ecnahc fo gnitteg ,detarutas yrassecen

fo kcor mass nac eb deppam morf eht desopxe noitarolpxe and gnitset shall eb detcudnoc
.ecafrus ehT rebmun fo llird seloh and stset ot assuming ti ot eb eht .lios
eb detcudnoc lliw dneped nopu eht erutan and
epyt fo skcor desopxe and eht ezis and -tropmi 4.9.1
Selection of Tests
ecna fo eht .gnidliub
4.9.7.1 roF snoitadnuof no evissam ,skcor sub-
4.9.3.1 detcej ot ylniam lacitrev ,sdaol ylno eht stset
Number of drill holes
rof tniop daol htgnerts xedni ro laixainu -moc
)a nI evissam enillatsyrc ,skcor gnillird yam
evisserp htgnerts yam eb .deriuqer
eb dettimo ,rehtegotla tpecxe ni esac fo
yrev tnatropmi/egral buildings ni hcihw 4.9.7.2 roF snoitadnuof no evissam skcor sub-
esac eno eloh rof yreve 1 000 2m fo aera detcej ot yvaeh latnoziroh ,sdaol etercnoc kcolb
htiw a muminim fo 3 seloh shall eb raehs stset and raehs tset shall eb -cudnoc
in situ
.dellird det ot kcehc ytilibats against sliding.
)b nI yletaredom detnioj and detailof ,skcor
4.9.7.3 roF snoitadnuof no yletaredom detnioj
eno llird eloh rof yreve 005-003 ma fo
,skcor eht stset rof stniop daol htgnerts xedni
aera shall eb .dellird A muminim fo 5
ro laixainu noisserpmoc htgnerts and ni
llird seloh shall eb dellird ni esac fo situ
raehs tset shall eb deirrac .tuo
snoitadnuof rof yrev ,egral yvaeh and
tnatropmi buildings. 4.9.7.4 roF snoitadnuof no yrev kaew and
)c nI ylivaeh ,detnioj deraehs and derehtaew derehtaew ,skcor etalp daol tset ro erusserp
kcor mass, eno llird eloh rof yreve -002 retem tset and in situ reehs tset shall eb deirrac
300 2m aera shall be .dellird .tuo
4
IS 13063 : 1991
eht sepols shall eb deirrac tuo and mumixam
4.10 Presentation of Geological Data
tnuoma fo eht daol that nac eb decalp yb yaw
4.10.1 nI ,yrammus eht gniwollof lacinhcetoeg fo buildings noitcurtsnoc and rieht stnapucco no
and lacigoloeg snoitamrofni* era deredisnoc ralucitrap aera shall eb dekrow tuo and .deifiton
tnatropmi ni eht ytilibats fo eht gnidliub -nuof snoitalugeR shall eb detaglumorp ot ylevitceffe
snoitad no kcor mass: lortnoc noitcurtsnoc ni evitisnes .saera
a) kcoR epyt and ;nigiro
4.11.4 elihW gniyrrac tuo eht ytilibats sisylana
b) noitatneirO fo seitiunitnocsid ni eht kcor fo eht enoz erehw gnidliub xelpmoc is ,desoporp
mass; egnahc ni eht ecafrusbus retaw snoitidnoc eud
d gnicapS fo seitiunitnocsid ni eht kcor ot tnempoleved fo pihsnwot shall eb detnuocca
mass; .rof
4 noitidnoC fo seitiunitnocsid gnidulcni 4.11.5 Mass stnemevom fo eht dnuorg era elbail
ssenhguor ,noitarapes ,ytiunitnoc -rehtaew ot rucco morf sesuac tnednepedni fo eht -erp
gni and gnillifni ( eguag ;) ecnes fo eht .gnidliub esehT edulcni ,noitavacxe
e) dnuorG retaw ;snoitidnoc ,noitarutas gninim ,ecnedisbus land slips no
elbatsnu sepols and peerc no .sepols esehT
)f rojaM ;stluaf srotcaf shall eb nekat otni tnuocca ni eht ngised
g) seitreporP fo eht kcor lairetam that is and trepxe ecivda shall eb ,thguos reverehw
laixainu evisserpmoc ,htgnerts tniop daol .deriuqer
pmul htgnerts ;xedni and
4.11.6 On llihpu edis fo a gnidliub no a gnipols
h) llirD eroC ytilauQ ( RQD .) ,etis eganiard seriuqer laiceps .snoitaredisnoc
roF noitaulave and noitatneserp fo eht evoba ehT larutan wolf fo retaw shall eb detrevid yawa
data, SI 11315 ( Parts 1 ot 11 ) shall eb .derrefer morf eht .noitadnuof
4.10.2 noitacinummoC neewteb eht gnireenigne
4.11.7 oN seert hcihw worg ot a egral ezis
tsigoloeg and eht ngised reenigne lliw eb yltaerg
shall eb detnalp nihtiw 8 m fo eht snoitadnuof
,decnahne fi eht data is detneserp ni standard
fo buildings.
.tamrof ehT sgniwollof era :dednemmocer
)a eroB eloh dluohs eb detneserp ni llew 5 GENERAL CONSIDERATIONS FOR
detucexe lacinhcetoeg .sgol DESIGN ( SAFETY )
)b Mapping data dluohs eb detneserp as
lacirehps noitcejorp ro ecafrus -orp 5.1 Loads on Foundation
.snoitcej
5.1.1 snoitadnuoF shall eb denoitroporp rof eht
)c lanidutignoL and snoitces-ssorc fo -curts gniwollof noitanibmoc fo :sdaol
larut ygoloeg at eht etis dluohs mrof an
)a daeD ,daol evil ,daol htrae ,erusserp
largetni trap fo a lacigoloeg .troper
retaw wons/serusserp daol ni saera erehw
)d roF yreve tnatropmi serutcurts -aredisnoc ti is .deretnuocne

noit dluohs eb nevig ot gnitcurtsnoc a
lacigoloeg ledom fo eht .etis )b daeD ,daol evil ,daol htrae ,erusserp
retaw wons/serusserp daol erehw ti is
)e A yrammus fo all eht lacinhcetoeg and
deretnuocne htiw wind ro cimsies .daol
lacigoloeg data gnidulcni eht dnuorg retaw
snoitidnoc dluohs eb deretne ni eht tupni 5.1.2 daeD daol osla sedulcni eht mass fo
data teehs rof kcor mass noitacifissalc ,llaw/nmuloc ,sgnitoof ,snoitadnuof eht -ylrevo
.esoprup gni llif gnidulcni ,tsorf fi ,deretnuocne gnirongi
eht mass fo lios decalpsid yb noitadnuof .metsys
4.11 lareneG ytilibatS fo aerA
4.11.1 nehW sepols poleved ,ytilibatsni ereht is NOTE - erehT era a rebmun fo setats ni aidnI
erehw wons lliw eb deretnuocne gnirud retniw ro
elttil that nac eb enod ot tcetorp an gnitsixe
yllainerep revo gniylrednu deb kcor no hcihw eht
gnidliub ni eht detceffa .saera aerA tcejbus ot noitadnuof metsys si dednetni ot eb .detcurtsnoc
land slips, mass stnemevom and elbatsnu ,sepols
shall, ,erofereht eb .dediova 5.1.3 eviL sdaol morf eht sroolf ,evoba as
deificeps ni SI 875 : 1964 shall eb nekat otni
4.11.2 erehtfI neppah ot eb an dlc slip enoz
.tnuocca
raen eht etis fo eht buildings, deliated ytilibats
sisylana fo eht aera shall eb deirrac tuo and
5.2 elbawollA gniraeB serusserP
tsrow elbaborp slip enoz shall eb .detacramed
oN buildings shall eb detcurtsnoc ni eht aera
5.2.1 serusserP gnimoc no eht kcor eud ot
hcihw is 200 m ro less yawa morf eht yradnuob
gnidliub noitadnuof shall ton eb erom than eht
fo eht mumixam elbaborp slip .enoz
efas gniraeb yticapac fo noitadnuof-kcor metsys
4.11.3 fI eht aera neppah ot eb yllih ,niarret taking otni tnuocca eht tceffe fo .yticirtnecce
erofeb planning and gnivorppa a gnidliub -moc ehT tceffe fo ecnerefretni fo tnereffid -adnuof
xelp no eht ,sepols deliated ytilibats sisylana fo snoit dluohs osla eb nekat otni .tnuocca

5