Accesso libero

Effect of randomly distributed polypropylene fiber reinforcement on the shear behavior of sandy soil

, , ,  e   
30 set 2019
INFORMAZIONI SU QUESTO ARTICOLO

Cita
Scarica la copertina

Figure 1

Localization of the liquefaction phenomenon in the Chlef valley during the earthquake of October 1980[16]
Localization of the liquefaction phenomenon in the Chlef valley during the earthquake of October 1980[16]

Figure 2

Grain size distribution curve of the Chlef sand.
Grain size distribution curve of the Chlef sand.

Figure 3

Monofilament polypropylenefiber.
Monofilament polypropylenefiber.

Figure 4

Sample preparation.
Sample preparation.

Figure 5

View of the direct shear box apparatus.
View of the direct shear box apparatus.

Figure 6

Effect of fiber content on shear behavior, normal stress of 200kPa and a relative density Dr = 30 %: (a)variation of the shear strength versus horizontal displacement,(b)variation of vertical displacement versus horizontal displacement, (c)intrinsic curves
Effect of fiber content on shear behavior, normal stress of 200kPa and a relative density Dr = 30 %: (a)variation of the shear strength versus horizontal displacement,(b)variation of vertical displacement versus horizontal displacement, (c)intrinsic curves

Figure 7

Effect of fibercontent on shear behavior, normal stress of 200kPa and a relative density Dr = 50 %: (a)variation of the shear strength versus horizontal displacement,(b)variation of vertical displacement versus horizontal displacement, (c)intrinsic curves
Effect of fibercontent on shear behavior, normal stress of 200kPa and a relative density Dr = 50 %: (a)variation of the shear strength versus horizontal displacement,(b)variation of vertical displacement versus horizontal displacement, (c)intrinsic curves

Figure 8

Effect of fibercontent on shear behavior, normal stress of 200kPa and a relative density Dr = 80 %: (a)variation of the shear strength versus horizontal displacement,(b)variation of vertical displacement versus horizontal displacement, (c)intrinsic curves
Effect of fibercontent on shear behavior, normal stress of 200kPa and a relative density Dr = 80 %: (a)variation of the shear strength versus horizontal displacement,(b)variation of vertical displacement versus horizontal displacement, (c)intrinsic curves

Figure 9

Effect of relative density and normal stress on the shear strength of fiber reinforced sand with a fiber content Fc=0.75%.
Effect of relative density and normal stress on the shear strength of fiber reinforced sand with a fiber content Fc=0.75%.

Experimental program_

Relative density, Dr(%)Fiber content, Fc(%)Normal stress, 6n(kPa)
300,0.25, 0.5and 0.7550, 100 and 200
500, 0.25, 0.5and 0.7550, 100 and 200
800, 0.25, 0.5and 0.7550, 100 and 200

Engineering properties of Chlef sand_

Sand PropertiesStandard test specificationsValue
Medium grain size, D50 (mm)ASTM D-4220.40
Maximum diameter, Dmax(mm)ASTM D-4222.00
Coefficient of uniformity, Cu (.)ASTM D-4222.227
Coefficient of curvature, Cc (.)ASTM D-4220.891
Mean specific gravity, Gs(.)ASTM D854-022.665
Maximum void ratio, emax(.)ASTM D4253-000.85
Minimum void ratio, emin(.)ASTM D4254-000.56

Physical and mechanical properties of polypropylene fiber_

Specific gravityLength (mm)Diameter (μm)Tensile strength (MPa)Young modulus (GPa)
0.911232600–7003.0–3.5
Lingua:
Inglese
Frequenza di pubblicazione:
4 volte all'anno
Argomenti della rivista:
Geoscienze, Geoscienze, altro, Scienze materiali, Compositi, Materiali porovati, Fisica, Meccanica e dinamica dei fluidi