Geotechnical Investigation Report - The City of San Antonio

Project: New High Speed Taxiway on Runway 3-21 and Taxiway D Repairs
Boring No.: B-5
Groundwater during drilling: ---
Groundwater after drilling: ---
LOG OF BORING
Date: 4/16/2012
Northing: --
Easting: --
Project No.: AG 06 24041
Elevation:
Station: --
Offset: --
ELEV.
DEPTH,
FEET
0
SOIL SYMBOLS
SAMPLER SYMBOLS
AND FIELD TEST DATA
PP = 4.5+ tsf
SOIL/ROCK CLASSIFICATION
Dark brown, very stiff to hard, FAT CLAY (CH), with
organics. (Fill)
% PASSING
NO. 200 SIEVE
DRY DENSITY
PCF
SHEAR STRENGTH, TSF
0.5 1.0 1.5 2.0
MOISTURE CONTENT, %
PLASTIC LIMIT
LIQUID LIMIT
10 20 30 40 50 60 70 80 90
PP = 2.75 tsf 90
PP = 4.5+ tsf
- 4" gravel layer at approximately 4' (Fill)
5
25-45-20 Gray to yellowish brown, very stiff, LEAN CLAY (CL).
(Residual soil)
Gray, very dense, WELL GRADED GRAVEL (GW).
(Residual soil)
15-15-24
Gray to yellowish brown, dense to very dense,
CLAYEY GRAVEL (GC). (Residual soil)
36
LOG OF SOIL BORING LOGS.GPJ HVJ.GDT 10/12/12
10
Shear Types:
28-50/6"
= Hand Penet.
= Torvane
= Unconf. Comp.
= UU Triaxial
PLATE 4