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Design of Soft Soil Stabilization with Maccaferri EB Geogrid Serie
GO INPUT DATA AMERICAN SYSTEM
GO INPUT DATA SI SYSTEM
Welcome to SoilStable a simplified Excel® worksheet for the design of soil stabilization with and without Maccaferri GEOGRID.
For additional information, please refer to Maccaferri technical note on Soil Stabilization
Maccaferri Inc.10303 Governor Lane BoulevardWilliamsport, MD 21795-3116Tel: (301) 223-6910Fax: (301) 223-6134www.maccaferri-usa.com
AMERICAN SYSTEM INPUT DATA
SINGLE AXLE (single or dual wheel)
Input data assigned CBR OR Input data assigned Cu
Subgrade CBR = 3 psi
370,000 lb lb
Tire Inflation Pressure p = 200 Psi Tire Inflation Pressure p = Psi
TANDEM AXLE
Input data assigned CBR OR Input data assigned Cu
Subgrade CBR = a= in psi a= in
lb b= in lb b= in
Subgrade Cu =
Axle Load Paxis = Axle Load Paxis =
Subgrade Cu =
Axle Load Paxis = Axle Load Paxis =
CALCULATEGO TO START
AMERICAN SYSTEM OUTPUT DATA Hu = thickness of aggregate without geogridHr = thickness of aggregate with Maccaferri geogrid
SINGLE AXLE (single or dual wheel)
OUTPUT data assigned CBR OUTPUT data assigned Cu
Hu = 42.21 in Hu = in
Hr = 26.70 in Hr = in
15.51 in in
TANDEM AXLE
OUTPUT data assigned CBR OUTPUT data assigned Cu
Hu = in Hu = in
Hr = in Hr = in
in in
DH = Hu-Hr
DH = DH =
DH = DH =
GO BACK GEOGRIDS SPECIFICATIONS
SI SYSTEM INPUT DATA
SINGLE AXLE (single or dual wheel)
Input data assigned CBR OR Input data assigned Cu
Subgrade CBR = 0.5 Cu = 15 kPa
89 kN Paxis = 89 kN
Tire Inflation Pressure p = 689.6 kPa p = 689.6 kPa
TANDEM AXLE
Input data assigned CBR OR Input data assigned Cu
Subgrade CBR = 0.5 a= 25.4 cm 15 kPa a= 25.4 cm
89 kN b= 25.4 cm 89 kN b= 25.4 cm
Axle Load Paxis =
Subgrade Cu =
Axle Load Paxis = Axle Load Paxis =
CALCULATEGO TO START
SI SYSTEM SI OUTPUT DATA Hu = thickness of aggregate whitout geogridHr = thickness of aggregate with Maccaferri geogrid
SINGL AXLE (single or dual wheel)
OUTPUT data assigned CBR OUTPUT data assigned Cu
Hu = 65.20 cm Hu = 65.20 cm
Hr = 45.01 cm Hr = 45.01 cm
20.19 cm 20.19 cm
TANDEM AXLE
OUTPUT data assigned CBR OUTPUT data assigned Cu
Hu = 65.20 cm Hu = 65.20 cm
Hr = 45.01 cm Hr = 45.01 cm
20.19 cm 20.19 cm
DH = Hu-Hr
DH = DH =
DH = DH =
GO BACK GEOGRIDS SPECIFICATIONS
Maccaferri Geogrids series is multilayer Geogrids consist of high strength extruded biaxially oriented polypropylene geogrids. The layers are rolled and stitched together without superimposing the meshes creating a Geogrid with random sized apertures designed to accommodate a variety of fill materials. The random aperture geometry, many tensile elements and multiple layers of the Geogrid enhance soil/Geogrid interaction.Maccaferri Geogrids greatly improve the geogrid interlocking capacity, distribute applied loads, and prevent localized shear failure.
Typical applications:- Soft soil stabilization - Base reinforcement - Embankments over weak soils - Working platforms - Haul roads
Maccaferri Geogrids Series
GO TO START
EB2 Geogrid
EB3 Geogrid
Maccaferri Geogrids series is multilayer Geogrids consist of high strength extruded biaxially oriented polypropylene geogrids. The layers are rolled and stitched together without superimposing the meshes creating a Geogrid with random sized apertures designed to accommodate a variety of fill materials. The random aperture geometry, many tensile elements and multiple layers of the Geogrid enhance soil/Geogrid interaction.Maccaferri Geogrids greatly improve the geogrid interlocking capacity, distribute applied loads, and prevent localized shear failure.
Typical applications:- Soft soil stabilization - Base reinforcement - Embankments over weak soils - Working platforms - Haul roads
Maccaferri EB2MULTILAYER BI-ORIENTED GEOGRIDS
Maccaferri geogrid is composed of two layers of high strength extruded biaxially oriented polypropylenegeogrids. The layers are rolled and stitched together without superimposing the meshes creating a geogrid withrandom sized apertures designed to accommodate a variety of fill materials. The random aperture geometry,many tensile elements and multiple layers of the geogrid enhance soil/geogrid interaction.Maccaferri geogrid greatly improves the geogrid interlocking capacity, distributes applied loads, and prevents localized shear failure.Typical applications:- soft soil stabilization - base reinforcement - embankments over weak soils - working platforms - haul roads
MATERIAL TEST METHOD DATACHARACTERISTICS
STRUCTURE LAYERS OF BI-ORIENTED GEOGRIDSSEWN TOGETHER
POLYMER TYPE POLYPROPYLENECARBON BLACK CONTENT ASTM D4218 0.50%
TECHNICAL CHARACTERISTICS TEST METHOD UNIT EB2
TEST DIRECTION MD TDPEAK TENSILE STRENGTH GRI-GG1 lb/ft (kN/m) 925 (13.5) 1400 (20.5)TTURE INITIAL MODULUS IN USE GRI-GG1 lb/ft (kN/m) 15,508 (226.4) 24,667 (360.1)TRUE TENSILE STRENGTH at 2% STRAIN GRI-GG1 lb/ft (kN/m) 301 (4.4) 450 (6.57)TRUE TENSILE MODULUS at 2% STRAIN GRI-GG1 lb/ft (kN/m) 15,050 (220) 22,500 (328)TRUE TENSILE STRENGTH at 5% STRAIN GRI-GG1 lb/ft (kN/m) 616 (9.0) 920 (13.42)TENSILE MODULUS at 5% STRAIN GRI-GG1 lb/ft (kN/m) 12,320 (180) 18,400 (269)YIELD POINT ELONGATION GRI-GG1 % 12.0 11.0JUNCTION STRENGTH GRI-GG2 lb/ft (kN/m) 835 (12.2) 1315 (19.2)
DIMENSIONAL CHARACTERISTICS TEST METHOD UNIT EB2
NUMBER OF LAYERS - 2APERTURE SIZE - MD, TD in. (mm), in. (mm) 1.65 (42), 1.96 (50)OPEN AREA % 75
UNIT WEIGHT ASTM D 5261 6.4 (220)ROLL DIMENSIONS (WIDTH x LENGTH) ftxft (mxm) 12.5x328 (3.8x100)
ROLL AREA 455 (380)GROSS ROLL WEIGHT lb (kg) 217 (98.5)
NOTES:a) 95% lower confidence limit values, ISO 2602 d) Single layer dimension b) Typical value e) MD : machine direction (longitudinal to the roll)c) Tests performed using extensometers TD : transversal direction (across roll width)
Maccaferri Inc.10303 Governor Lane BoulevardWilliamsport, MD 21795-3116tel (301) 223-6910
oz/yd2 (g/m2)
yd2 (m2)
fax (301) 223-6134
geogrids. The layers are rolled and stitched together without superimposing the meshes creating a geogrid with
DATA
LAYERS OF BI-ORIENTED GEOGRIDSSEWN TOGETHERPOLYPROPYLENE
0.50%
EB2 Notes
TD1400 (20.5) a,c,e
24,667 (360.1) a,c,e450 (6.57) a,c,e
22,500 (328) a,c,e920 (13.42) a,c,e
18,400 (269) a,c,e11.0 b,c,e
1315 (19.2) a,e
EB2 Notes
21.65 (42), 1.96 (50) b,d,e
75 a
6.4 (220) b12.5x328 (3.8x100) b
455 (380) b217 (98.5) b
d) Single layer dimension e) MD : machine direction (longitudinal to the roll) TD : transversal direction (across roll width)
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Maccaferri EB3MULTILAYER BI-ORIENTED GEOGRIDS
Maccaferri EB3 geogrid is composed of three layers of high strength extruded biaxially oriented polypropylenemesh. The layers are rolled and stitched together without superimposing the meshes creating a geogrid withrandom sized apertures designed to accommodate a variety of fill materials. The random aperture geometry,many tensile elements and multiple layers of the geogrid enhance soil/geogrid interaction.Maccaferri EB3 geogrid greatly improves geogrid interlocking capacity, distributes applied loads, and prevents localized shear failure.Typical applications:- soft soil stabilization - base reinforcement - embankments over weak soils - working platforms - haul roads
MATERIAL TEST METHOD DATACHARACTERISTICS
STRUCTURE LAYERS OF BI-ORIENTED GEOGRIDSSEWN TOGETHER
POLYMER TYPE POLYPROPYLENECARBON BLACK CONTENT ASTM D4218 0.50%
TECHNICAL CHARACTERISTICS TEST METHOD UNIT EB3 TEST DIRECTION MD TD
PEAK TENSILE STRENGTH GRI-GG1 lb/ft (kN/m) 1370 (20.0) 2100 (30.7)TTURE INITIAL MODULUS IN USE GRI-GG1 lb/ft (kN/m) 32,962 (481.2) 44,700 (652.5)TENSILE STRENGTH at 2% STRAIN GRI-GG1 lb/ft (kN/m) 418 (6.1) 616 (9.0)TENSILE MODULUS at 2% STRAIN GRI-GG1 lb/ft (kN/m) 20,900 (305) 30,800 (450)TENSILE STRENGTH at 5% STRAIN GRI-GG1 lb/ft (kN/m) 925 (13.5) 1340 (19.6)TENSILE MODULUS at 5% STRAIN GRI-GG1 lb/ft (kN/m) 18,500 (270) 26,850 (392)YIELD POINT ELONGATION GRI-GG1 % 12.0 11.0JUNCTION STRENGTH GRI-GG2 lb/ft (kN/m) 1230 (18) 1970 (28.8)
DIMENSIONAL CHARACTERISTICS TEST METHOD UNIT EB3NUMBER OF LAYERS - 3APERTURE SIZE - MD, TD in. (mm), in. (mm) 1.65 (42), 1.96 (50)OPEN AREA % 70
UNIT WEIGHT ASTM D 5261 9.6 (330)ROLL DIMENSIONS (WIDTH x LENGTH) ftxft (mxm) 12.5x164 (3.8x50)
ROLL AREA 227 (190)GROSS ROLL WEIGHT lb (kg) 165.0 (75.0)
NOTES:a) 95% lower confidence limit values, ISO 2602 d) Single layer dimension b) Typical value e) MD : machine direction (longitudinal to the roll)c) Tests performed using extensometers TD : transversal direction (across roll width)
Maccaferri Inc.10303 Governor Lane BoulevardWilliamsport, MD 21795-3116tel (301) 223-6910
oz/yd2 (g/m2)
yd2 (m2)
fax (301) 223-6134
Maccaferri EB3 geogrid is composed of three layers of high strength extruded biaxially oriented polypropylenemesh. The layers are rolled and stitched together without superimposing the meshes creating a geogrid withrandom sized apertures designed to accommodate a variety of fill materials. The random aperture geometry,
Maccaferri EB3 geogrid greatly improves geogrid interlocking capacity, distributes applied loads, and prevents
DATA
LAYERS OF BI-ORIENTED GEOGRIDSSEWN TOGETHERPOLYPROPYLENE
0.50%
EB3 NotesTD
2100 (30.7) a,c,e44,700 (652.5) a,c,e
616 (9.0) a,c,e30,800 (450) a,c,e1340 (19.6) a,c,e
26,850 (392) a,c,e11.0 b,c,e
1970 (28.8) a,e
EB3 Notes3
1.65 (42), 1.96 (50) b,d,e70 a
9.6 (330) b12.5x164 (3.8x50) b
227 (190) b165.0 (75.0) b
e) MD : machine direction (longitudinal to the roll)
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