Dati di base - Unione dei Comuni del Pratomagno

DETERMINATION OF SHEAR STRENGTH BY DIRECT SHEAR (in the small shearbox apparatus)
Set of single stage tests - tested in accordance with BS 1377:1990:Part 7: Clause 4 (procedure 4.5.4)
TEST REPORT - SUMMARY
Project location Faella - Pian di Scò (AR)
Project reference GHEA srl
Sample depth 4.00-4.50
Borehole number 1
Sample type Undisturbed cohesive
Sample number 1
Specimen orientation
Sample description
Sabbia limo-argillosa.
Particle density (Mg/m³)
2.68 (Measured)
Specimens tested dry
INITIAL CONDITIONS
Specimen depth (m)
Height (mm)
-
Diameter (mm)
Area (mm²)
Moisture content (measured) (%)
Moisture content (trimmings) (%)
Bulk density (Mg/m³)
Dry density (Mg/m³)
Voids ratio
Degree of saturation (%)
Voids ratio at the end of
consolidation
Specimen 1 Specimen 2
Specimen 3
4.20
4.20
4.20
20.0
20.0 20.0
60.0
60.0 60.0
2827.4
2827.4
2827.4
22
23
23
22 22
22
2.00
1.98 2.03
1.64
1.61 1.64
0.637
0.666 0.631
94
93
100
0.615 0.593 0.569
SHEARING
Rate of displacement (mm/min)
Conditions at peak shear stress
Normal stress (kPa)
Shear stress (kPa)
Horizontal displacement (mm)
Vertical deformation (mm)
Apparent cohesion (kPa)
Angle of shearing resistance (°)
0.010000
100
61
5.04
0.327
2.0
31.9
0.010000
0.010000
200 400
122 252
3.04 4.42
0.422 0.583
Comments / variations from procedures:
Verbale di accettazione N. 197
Il presente certificato è costiutito da 18 pagine.
Tested Dott. Iannini
Checked Dott.ssa Sfalanga Approved Prof. Carmignani
Date 12/04/2011 Date 14/04/2011
Date N° 2887/2011
11