Geotechnical Investigation Report - The City of San Antonio

Project: New High Speed Taxiway on Runway 3-21 and Taxiway D Repairs
Boring No.: B-7
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
SOIL/ROCK CLASSIFICATION
19" CONCRETE
% 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
Approximately 12" CEMENT TREATED BASE
Gray, hard, GRAVELLY LEAN CLAY (CL). (Fill)
Orangish brown, very dense, CLAYEY GRAVEL
(GC). (Residual soil)
23
50/0"
50/6"
5
- with limestone flags 3' - 6.5'
40-50/6"
Orangish brown, soft, moderately to highly
weathered, LIMESTONE. (Pecan Gap Chalk)
LOG OF SOIL BORING LOGS.GPJ HVJ.GDT 10/12/12
10
Shear Types:
50/3"
= Hand Penet.
= Torvane
= Unconf. Comp.
= UU Triaxial
PLATE 6