GeotechnicalPile Geotechnical Design using SPT ValuesSite:Round Pile f =1000mmSkin Area per m, As=3.142Base Area, Ab =0.785m2Factor of Safety (FoS) =2.000Depth Interval (m)Avg MKT Value (M)Avg SPT Value, NUnit Skin Fric, fs = 2N (kN/m2)Skin Fric, Fs (kN)Cumulative Skin Fric, Fs (kN)End Bear at depth, qb=min(400N/3, 10000) (kN/m2)End Bear at depth, Qb (kN)Pile Ultimate Capacity, Qult = Fs+Qb (kN)Pile Allowable Capacity, Qall = Qult/FoS (kN)1112269.169.11466.71151.91221.0610.52112269.1138.21466.71151.91290.1645.132412.6150.8266.7209.4360.2180.142412.6163.4266.7209.4372.8186.452412.6175.9266.7209.4385.4192.76132681.7257.61733.31361.41619.0809.572652163.4421.03466.72722.73143.71571.882142131.9552.92800.02199.12752.01376.092142131.9684.92800.02199.12884.01442.010126.3691.2133.3104.7795.9397.911122475.4766.51600.01256.62023.21011.61251031.4798.0666.7523.61321.6660.813.561256.5854.5800.0628.31482.8741.41561256.5911.1800.0628.31539.4769.716.5129.4920.5133.3104.71025.2512.6183628.3948.8400.0314.21262.9631.519.5129.4958.2133.3104.71062.9531.5212417.0975.2240.0188.51163.6581.8232422.6997.8240.0188.51186.3593.12422464.87743.28741.010000.07854.016595.08297.519.500.00.00.00.00.00.02100.00.00.00.00.00.022.500.00.00.00.00.00.02400.00.00.00.00.00.025.500.00.00.00.00.00.02700.00.00.00.00.00.028.500.00.00.00.00.00.03000.00.00.00.00.00.031.500.00.00.00.00.00.03300.00.00.00.00.00.034.500.00.00.00.00.00.03600.00.00.00.00.00.037.500.00.00.00.00.00.03900.00.00.00.00.00.040.500.00.00.00.00.00.04200.00.00.00.00.00.043.500.00.00.00.00.00.04500.00.00.00.00.00.0Specified Working Load =8000kNDepth required =13m(Based on given BH/MKT Report & above FoS)

&LDesign of Micropile&RGEOPROFOUND ENGINEERING SDN BHD&R&D

Geotechnical

Depth (m)Pile Capacity (kN)

Structural APIMicropile Structural Capacity CalculationPile Diameter, f =1000mmGrade, fcu35cement grout (w/c ratio = 0.45)Use API Pipe,f88.9mm6.45mm thkfy =500N/mm2 (min)Area of Steel & ConcreteAs (provided) = 2prtAs =1670.7068271607mm2Ac = p*d2/4Ac =785500mm2Ultimate Axial Load,fu = 0.4fcu*Ac + 0.75fy*Asfu =11623515.0601853Nfu =11623.5150601853kNTaking Factor of Safety (FoS) =2fall = fu/FoSfall =5811.8kNBased on the structural capacity above, the micropile is able to take the given working loadof5811.8kNMicropile DetailsMicropile, Dia1000mmAPI Pipe insidef88.96.45mm thkClear spacing/Cover =455.6mmCement grout, G35NW/C Ratio 0.45 min

&LDesign of Micropile&R&"Arial,Bold"&12GEOPROFOUND ENGINEERING SDN BHD (707134-T)&R&D

Structural RebarMicropile Structural Capacity CalculationPile Diameter, f =1000mmGrade, fcu35cement grout (w/c ratio = 0.45)Use Rebar,f32mm25Nosfy =460N/mm2 (min)Area of Steel & ConcreteAs (provided) = Sprbars2As =20106.1929829747mm2Ac = p*d2/4Ac =785500mm2Ultimate Axial Load,fu = 0.4fcu*Ac + 0.75fy*Asfu =17933636.5791263Nfu =17933.6365791263kNTaking Factor of Safety (FoS) =2fall = fu/FoSfall =8966.8kNBased on the structural capacity above, the micropile is able to take the given working loadof8966.8kNMicropile DetailsMicropile, Dia1000mmR6 Spiral LinkRebar4Y12Cement grout, G35NW/C Ratio 0.45 min

&LDesign of Micropile&R&"Arial,Bold"&12GEOPROFOUND ENGINEERING SDN BHD (707134-T)&R&D