BORED Pile and Pile Cap Design

8/15/2019 BORED Pile and Pile Cap Design

1/51

Prepared By

Mohamad Shakri bin Mohmad Shariff

2009106705


2/51

Proposed by Kementerian Pengajian inggi

Ma!aysia to "onstr#"t a Komp!eks $PPP and

Makma! Penye!idikan Berp#sat %&esear"h

'aboratory (enter) at *ni+ersity Ma!aya, K#a!a

'#mp#r-

. soi! in+estigation programme "onsists of 7

boreho!es ha+e been s#nk /ith a!! the

asso"iated dist#rbed and #ndist#rbed

samp!ings and asso"iated !aboratory tests

5 ma"kintosh probing and 5 hand a#ger ho!es

been "arried o#t by Messrs K#mp#!an $kram

Sdb Bhd %$K&.M)-


3/51

Geological Map of the Project

Proposed Site


4/51

rom the eo!ogi"a! map, the site may be in geo!ogi"a! formations, /hi"h are granite,phy!!ite and !imestone-

he phy!!ite formation may "onsist of state,sha!e and sandstone-

By site +isit, the area most !ike!y /ithin the"arbonifero#s age phy!!ite, s!ate, sha!e and

sandstone area-


5/51

he gro#nd !e+e! at proje"t site rangefrom &' 31-4 to &' 52--

he p#rposed !e+e! is aro#nd &' 31-4 -

he s!ope /i!! "#t to standardie of !e+e!- or the drainage, perimeter drainage

eist aro#nd the area and a!so inside thebo#ndary a""ording the staggered stages

of the eisting "ar park-


6/51

$*& .1 8 S$' P&$' .(&SS B&:' B:1;B:3


7/51

$*& .2 8 S$' P&$' .(&SS B&:' B:5;B:7


8/51

$*& . 8 S$' P&$' .(&SS B&:' B:1;B:3


9/51

he dri!!ing of boreho!es /as terminated after a minim#m of-0m of "ontin#o#s ro"k "oring or 5 time SP +a!#es ? 50b!o/s

Based on boreho!e res#!ts, the s#bsoi! main!y "onsist of sandyS$'-

he standard Penetration test had been p!ot based on 5boreho!es %B: 1 @ B: 5) /hi"h are abo#t the same !e+e!-

he soi! !ayer and parameters had been ana!ysis and design basedon S$ res#!t-

(hemi"a! est, .tterberg 'imit est :ydrometer .na!ysis are

eamp!e tests that had been "ond#"ted- he si!t basi"a!!y ha+e !iA#id !imit aro#nd 25 to 62- si!t in B: 5

indi"ated +ery high !iA#id !imit as high as 62-

here /as no ro"k en"o#ntered in a!! the boreho!es /hi"h /ereterminated /ithin depth of 0 meter from the eisting gro#nd!e+e!-


10/51


11/51


12/51

Prepared By

eh Maisara Binti Mohd :assan

2009762251

=or .iyatimah Binti .bd#! M#ta!ib

200990599


13/51

'arge iameter (ast;$n $n;Sit# Pi!es %Bored

Pi!es)

Sie 8 350mm to 2m

%*p to -0m for spe"ia! "ase) 'engths 8 Caries

Str#"t#ra! (apa"ity 8 40on to 2,00ons %a!!

b#i!dings or massi+e ind#stria! "omp!ees)

(on"rete rade 8 20MPa to 5MPa %remie)

Doints 8 =one

$nsta!!ation Method 8 ri!! then (ast;$n;Sit#


14/51

.ia! 'oad (apa"ity(on"rete, (" 8 0-25 f"#

."

Stee! , S" 8 175 .s

ota!8 (" E ."/here,

(on"rete strength, f"# 8 5=FmmG

(on"rete area, ." 8 %h h) @ .s

Pi!e sie 8 h h

Pi!e =S=o of Pi!e, = 8 .pp!ied 'oad, Papp Sing!e Pi!e (apa"ity,

H a!!

Skin ri"tion

% k=FmG )

(!ay F Si!t F Sand 8 2-5 .+erage

SP, =

ri"tiona! &esistan"e

% k=FmG )Hs 8 I p J' f

/here,

Perimeter, p 8

epth, '

Skin fri"tion, f

Point Bearing (apa"ity

% k=FmG )

H p 8 .p Ap/here,

(ross;se"tion .rea, .p

Ap 8 50 .+erage SP, =

.!!o/ab!e 'oad;Bearing(apa"ity % k= )

Ha!! 8 %Hs E Hp )F S

/here,

a"tor of safety, S


15/51

amp!e

Pi!e ata

Soi! Profi!e

for B:7


16/51


17/51


18/51


19/51

(ross;se"tion of

bored pi!e

P!an

+ie/


20/51


21/51

Bored pi!ing is

#sed to remo+e

the soi! and

ro"k-


22/51

or "ohesion!ess

soi!s s#"h as sands,

gra+e!s, si!ts, pi!ebore ho!e m#st be

s#pported #sing

stee! "asing or

stabi!iing m#ds

s#"h as bentonite

s#spension


23/51


24/51

&einfor"ement bar

/i!! be p#t into

the bore ho!e


25/51


26/51

(on"rete /i!! be

po#red into the

bore ho!e


27/51


28/51

Prepared By

Lan Mohd .ri Bin Lan Mohd #bir

200991945

Khair#! .mri Bin San#si

2009106705


29/51

Pi!e "ap defined as a "on"rete b!o"k "ast onthe head of a pi!e, or a gro#p of pi!es totransmit !oad from str#"t#re to the pi!e-


30/51

Pi!e "ap /i!! !atera!!y stabi!ie indi+id#a!pi!es th#s in"reasing o+era!! stabi!ity of thegro#p-

Pi!e "ap m#st be rigid to transfer !oads from"o!#mn to the pi!es-

/o methods of design pi!e "apsNr#ss .na!ogy Method

Beam heory Method


31/51

Pi!e "ap treated as an in+erted "anti!e+erbeam-

esign for the #s#a! "onditions of bending

and shear- .pp!ied to !arger gro#ps of pi!es-


32/51

Based on tr#ss theory-

'oad from "o!#mn transmit to pi!es bytriang#!ar tr#ss a"tion-

(on"rete take as "ompressi+e members andstee! rebar as tensi!e members-

'imited #p to fi!e pi!es-


33/51

etermine sie of pi!e "ap based on pi!espa"ing of d and edge distan"e bet/een150O250mm-

Pi!e "ap depth to be ass#med as fo!!o/sN

Lorking !oad of pi!e norma!!y based ongeote"hni"a! "apa"ity be"a#se str#"t#re"apa"ity is higher-

Pilesize

150 200 300 350 450 600 750

epth 350 600 700 900 1000 1300 1400


34/51

etermine rebar by Beam Method or r#ssMethod-

(he"king for shear at "o!#mn fa"e and"riti"a! se"tion %20 or 1F5 of pi!e diameter)-.!!o/ shear enhan"ement-

(he"king for p#n"hing shear if pi!e spa"ingmore than d%diameter of pi!e)-

(he"king detai!ing reA#irements s#"h asan"horage, bar spa"ing and "o+er-


35/51

P$' (.P S$=


36/51

Based on BS 4110

esign "on"ept Beam heory Method

Strength of "on"rete, f"#? 0=Fmm2

Strength of reinf-, fy ? 360 =Fmm2- Min- "o+er to main reinf-, " ? 50mm

(o!#mn ser+i"e !oad, ? 1660 K=

(o!#mn sie ? 300mm 300mm

Bored pi!e diameter ? 600mm


37/51

Min- "ap design %!ength)

? 2%to!eran"e of pi!e) E bored pi!e diameter

? 150mm E 600mm

? 750mm say #se 1000mm-

Min- "ap design %breadth)

? bored pi!e diameter E 2%to!eran"e of pi!e)

? 600mm E 150mm

? 750mm say #se 1000mm-


38/51

(he"k !ength to determine min- depthN

' ? 2d%diameter of bored pi!e) E 100mm

? 2 %600mm) E 100mm

? 100mm say 1500 mmr /e "an #se ab!e Pi!e (ap epth depends on

Sie of Pi!esN

So #se 1300mm for 600mm bored pi!ediameter-

Pile size 150 200 300 350 450 600 750

epth 350 600 700 900 1000 1300 1400


39/51

:en"e, adopt sing!e bored;pi!e "ap sie

? 1000mm 1000mm 1300mm

ffe"ti+e depthN%ass- dia- of bar ? 25mm)

? 1300mm @ 75mm ; 25mm? 100mm


40/51

Main bar ? 0-15 bd

? 0-15 %1000)%100)

? 1950 mm2

Pro+ide 625% 2950 mm2 Q 1950 mm2) Pro+ide simi!ar bar for both /ays 625 and

tie bars for 16-

Pro+ide anti;"ra"k bar at top of pi!e "ap for

more than 0-9m ? 0-1 bh? 0-1 %1000)%1300)

? 1420mm2

Pro+ide 625% 2950 mm2 Q 1420 mm2)


41/51

etai!ingN


42/51

etai!ingN


43/51

P$' (.P S$=


44/51


45/51


46/51


47/51

etai!ingN


48/51

etai!ingN


49/51

BH 2

BH 3

BH 4

BH 5

BH 1

BH 7

BH 6


50/51

. +ery good soi! /ere fo#nd at approimate!y7-5 m from gro#nd !e+e! for B:1, B:2, B:and B:3-

. bored pi!e system /ere adopted to "aterfor the !arge "o!#mn !oad and estimatedsha!!o/ penetration for pre"ast pi!e-

Bored pi!e /ith sies +arying from 500mmdia- to 750mm dia- /ere adopted in thiseer"ise-


51/51

BORED Pile and Pile Cap Design

Documents

Transcript of BORED Pile and Pile Cap Design