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Pune Metro Borehole Log Report

DBM Geotechnics & Constructions Pvt. Ltd conducted borehole drilling for the development of Pune Metro Line III between Hinjewadi and Shivaji Nagar. The borehole log details subsurface conditions at borehole P0/19 in Hinjewadi, which encountered fill material from 0-3m underlain by completely to highly weathered basalt from 3.5-7m, moderately weathered basalt from 7.5-8m, and slightly weathered basalt from 8.5-10m. Standard Penetration Tests were conducted during drilling to evaluate subsurface conditions.
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0% found this document useful (0 votes)
77 views2 pages

Pune Metro Borehole Log Report

DBM Geotechnics & Constructions Pvt. Ltd conducted borehole drilling for the development of Pune Metro Line III between Hinjewadi and Shivaji Nagar. The borehole log details subsurface conditions at borehole P0/19 in Hinjewadi, which encountered fill material from 0-3m underlain by completely to highly weathered basalt from 3.5-7m, moderately weathered basalt from 7.5-8m, and slightly weathered basalt from 8.5-10m. Standard Penetration Tests were conducted during drilling to evaluate subsurface conditions.
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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DBM GEOTECHNICS & CONSTRUCTIONS PVT.

LTD
Project: Development of Pune Metro Line III (Megapolice circle (Hinjewadi) to Civil Court (Shivaji Nagar) Metro Rail Corridor, Pune.

Client: PUNE METROPOLITAN REGION DEVELOPMENT AUTHORITY Location: : HINJEWADI Pier No. :

Equipment : Hydraulic rig Borehole No. : P0/19 Co-ordinates : N 2054486.4695 E 361584.0019


Drilling Orientation : Vertical Type of Core barrel : Double Tube Date : 15/07/2019 TO 17/07/2019
Drilling Method : Rotary Type Type of Bit : Diamond Core Bit R.L. (m) : 610.446m
Casing Size : HX / NX Drilling Fluid : Water T.D.(m) : 20.00m B.G.L.
Casing Depth(m) : HX Upto 3.50m & NX upto 7.50m B.G.L. Core diameter (mm) : 54mm W.T.(m) : 4.00m B.G.L.
BOREHOLE LOG SHEET

SPT Blow Counts

Description

0.0 0.00
D1
3.00
0.5

1.0

1.5
Fill (Brownish, silty clay with gravels, pebbles,concrete and boulders)
2.0

2.5

3.0 3.00
3.29 S1 32 54 -- 54/
3.5 (290mm) 1 TO
5 V to
1.76 17 9 NIL N.I 0
4.0 with IV
SP
4.5 4.50
Completely to Highly weathered, light greenish grey, BASALT
5.0 6 TO
10 V to
1.88 21 12 NIL N.I 0
5.5 With IV
SP
6.0 6.00

6.5
11
Completely to Highly weathered, light greenish grey to brownish, V to
1.88 46 46 NIL TO N.I 0
7.0 amygdaloidal BASALT IV
24
7.5 7.50

8.0 25
Moderately weathered, greyish to brownish, amygdaloidal BASALT (III) 2.00 87 85 77 TO 4 III 60
8.5 29
9.0 9.00
30
9.5
Slightly weathered, greyish to brownish, amygdaloidal BASALT (II) 1.76 96 96 93 TO 4 II 60
32
10.0 10.00
SPT- (Standard Penetration Test - S1,S2,S3…) I Fresh R SPT Refusal
UDS- (Undisturbed Sample - U1,U2,U3….) II Slightly weathered EGL Existing Ground Level
DS- (Disturbed Sample - D1,D2,D3….) III Moderately weathered F.I. Fracture Index

RC/SC (Rock /Soil Core-C1,C2,C3....) IV Highly weathered N.I Non-Intact Rock

Wash Boring V Completely weathered UCS Unconfined Compressive Strength


Fill Basalt VI Residual Soil TCR Total Core Recovery
TD Termination depth SCR Solid Core Recovery
R.L. Reduced Level RQD Rock Quality Designation

Logged By: Checked By Prepared By

Name Signature Name Signature Name Signature

Maneesh Dave Anirudha Joshi Sanket R. Baing


DBM GEOTECHNICS & CONSTRUCTIONS PVT. LTD
Project: Development of Pune Metro Line III (Megapolice circle (Hinjewadi) to Civil Court (Shivaji Nagar) Metro Rail Corridor, Pune.

Client: PUNE METROPOLITAN REGION DEVELOPMENT AUTHORITY Location: : HINJEWADI Pier No. :

Equipment : Hydraulic rig Borehole No. : P0/19 Co-ordinates : N 2054486.4695 E 361584.0019


Drilling Orientation : Vertical Type of Core barrel : Double Tube Date : 15/07/2019 TO 17/07/2019
Drilling Method : Rotary Type Type of Bit : Diamond Core Bit R.L. (m) : 610.446m
Casing Size : HX / NX Drilling Fluid : Water T.D.(m) : 20.00m B.G.L.
Casing Depth(m) : HX Upto 3.50m & NX upto 7.50m B.G.L. Core diameter (mm) : 54mm W.T.(m) : 4.00m B.G.L.
BOREHOLE LOG SHEET

SPT Blow Counts

Description

30
Slightly weathered, greyish to brownish, amygdaloidal BASALT 1.76 96 96 93 4 II 60
10.5 10.50 TO

11.0
33
Moderately weathered, greyish to brownish, compact BASALT (III) 2.14 90 88 65 TO N.I III 40
11.5
46
12.0 12.00
47
12.5 Slightly to moderately weathered, greyish, jointed and fractured,
1.67 97 97 43 TO N.I III to II 40
compact BASALT (III to II)
61
13.0 13.00

13.5
62
Slightly weathered, greyish, compact BASALT (II) 1.76 95 95 83 TO 8 II 40
14.0
69
14.5 14.50

15.0
70
Moderately weathered, brownish, amygdaloidal BASALT (III) 1.58 96 96 64 TO N.I III 40
15.5
81
16.0 16.00
82
16.5
TO
Slightly weathered, brownish, amygdaloidal BASALT (II) 1.58 98 97 85 89 9 II 50
17.0
with
SP
17.5 17.50

18.0
90
1.88 98 98 96 TO 2 I 50
18.5
91
Fresh, greyish, amygdaloidal BASALT (I)
19.0 19.00
92
19.5
2.22 98 98 90 TO 2 I 50
93
20.0 20.00
SPT- (Standard Penetration Test - S1,S2,S3…) I Fresh R SPT Refusal
UDS- (Undisturbed Sample - U1,U2,U3….) II Slightly weathered EGL Existing Ground Level
DS- (Disturbed Sample - D1,D2,D3….) III Moderately weathered F.I. Fracture Index

RC/SC (Rock /Soil Core-C1,C2,C3....) IV Highly weathered N.I Non-Intact Rock

Wash Boring V Completely weathered UCS Unconfined Compressive Strength


Fill Basalt VI Residual Soil TCR Total Core Recovery
TD Termination depth SCR Solid Core Recovery
R.L. Reduced Level RQD Rock Quality Designation

Logged By: Checked By Prepared By

Name Signature Name Signature Name Signature

Maneesh Dave Anirudha Joshi Sanket R. Baing

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