Rev. No. 1Project: CITY GATE Date: 4/21/2023Owner: Designed by: Lê Ngọc Hiền

Item: Checked by: Nguyễn Văn Doãn

BORE PILE DESIGN

A. GENERAL DATA

Bottom level of pilecap: 6.9 mDiameter of pile: d = 1.2 m

Pile length: 57.00 mRebar diameter: 22 mm cm²Rebar number: n = 18

B. SOIL DATA

Underground water 0.5 m

Position layer type C f SPT(m) (T/m3) (T/m3) (T/m2)

0 clay 2.72 1.500 1.500 1.00 30.00 41 clay 4.18 1.476 0.476 0.68 6.45 11 clay 16.8 1.476 0.476 0.68 6.45 13 sand 4.5 1.961 0.961 1.00 27.60 264 clay 4.1 1.938 0.938 4.16 16.78 135 clay 1.9 1.892 0.892 2.81 21.72 126 sand 19.9 1.975 0.975 1.00 27.80 258 clay 2.88 2.012 1.012 4.79 18.95 477 sand 0 08 sand 0 09 sand 0 0

10 sand 011 sand

END PILE 8 clay 0 2.012 1.012 4.790 18.950 47

C. PILE BEARING CAPACITY

MIN(1,2,3) = 701 T

Chọn = 650 T 1. Refer to material

Material data :

- Concrete grade: M300 60.00

- Steel grade: A-III 2200

Pile capacity 825 T (1)

Job No:

Df =

Lp =f =

Hw =

hi g tn g dn

ABOVE PILECAP

BELOW PILECAP

Ptk =

Ptk

Rn = Kg/cm2

Ra = Kg/cm2

Qvl=

3. Pile bearing capacity according to standard penetration test (TCXD 195-1997)

Allow Bearing Capacity: 701 Ton (3)

With:

SPT index at bottom pile

SPT index in clay soil layer

SPT index in sand soil layer

Length of pile in clay soil layer

Length of pile in sand soil layer

Area of pile: 1.13Parameter of pile: W = 3.77 m

layer

0 2.72 0 0 4 2.721 4.18 0 0 1 4.181 16.82 0 0 1 16.82 0 16.82 38.5023 4.5 26 4.5 0 0 117 0 7.8334 4.1 0 0 13 4.1 0 53.3 7.2435 1.9 0 0 12 1.9 0 22.8 3.4556 19.9 0 25 19.9 0 0 497.5 0 34.3228 2.88 0 0 47 2.88 0 135.36 4.8477 0 0 0 0 0 0 0 0.0008 0 0 0 0 0 0 0 0.0009 0 0 0 0 0 0 0 0.000

10 0 0 0 0 0 0 0 0.00011 0 0 0 0 0 0 0 0.000

47SUM 614.5 228.28 96.202313

Qa =

Qa = 1.5NTBAp + (0.15NcLc + 0.43NsLs)W - Wp

NTB

Ns

Nc

Ls

Lc

Ap = m2

h (m) NTB Nc

Lc

(m) NsLs

(m) NcLc NsLsWp(T)

ENDPILE