scholarly journals A STUDY OF THE GROUPED ARRANGEMENT OF STUD CONNECTORS ON THE SHEAR STRENGTH BEHAVIOR

2004 ◽  
pp. 81-95 ◽  
Author(s):  
Jun OKADA ◽  
Teruhiko YODA ◽  
Jean-Paul LEBET
Keyword(s):  
Shear Strength ◽  
Strength Behavior

Shear strength behavior of Mont Terri Opalinus Claystone in fault zone

2015 ◽  
Vol 10 (1) ◽  
pp. 31-38
Author(s):  
Ildikó Buocz ◽  
Nikoletta Rozgonyi-Boissinot ◽  
Ákos Török
Keyword(s):  
Shear Strength ◽  
Fault Zone ◽  
Strength Behavior ◽  
Mont Terri

Shear strength behavior of compacted unsaturated residual soil

2013 ◽  
Vol 7 (1) ◽  
pp. 1-9 ◽  
Author(s):  
F A M Marinho ◽  
O M Oliveira ◽  
H Adem ◽  
S Vanapalli
Keyword(s):  
Shear Strength ◽  
Residual Soil ◽  
Strength Behavior

Moisture Effects on Degraded Ballast Shear Strength Behavior

2016 ◽  
Author(s):  
Yu Qian ◽  
Debakanta Mishra ◽  
Erol Tutumluer ◽  
Youssef M. A. Hashash ◽  
Jamshid Ghaboussi
Keyword(s):  
Shear Strength ◽  
Los Angeles ◽  
Large Scale ◽  
Coal Dust ◽  
Axial Strain ◽  
Dust Collection ◽  
Uniform Size ◽  
Classical Text ◽  
Fouled Ballast ◽  
Strength Behavior

Ballast consisting of large sized aggregate particles with uniform size distribution is an essential component of the track substructure, to facilitate load distribution and drainage. As freight tonnage accumulates with traffic, ballast will accumulate an increasing percentage of fines due to either aggregate breakdown or outside contamination such as subgrade soil intrusion and coal dust collection. According to the classical text by Selig and Waters [1], ballast degradation from traffic involves up to 76% of all fouling cases; voids will be occupied by fines from the bottom of ballast layer gradually causing ballast clogging and losing its drainage ability. When moisture is trapped within ballast, especially fouled ballast, ballast layer stability is compromised. In the recent studies at the University of Illinois, the focus has been to evaluate behavior of fouled ballast due to aggregate degradation using large scale triaxial testing. To investigate the effects of moisture on degraded ballast, fouled ballast was generated in the laboratory through controlled Los Angeles (LA) abrasion tests intended to mimic aggregate abrasion and breakdown and generate fouled ballast at compositions similar to those observed in the field due to repeated train loadings. Triaxial shear strength tests were performed on the fouled ballast at different moisture contents. Important findings of this preliminary study on characterizing wet fouled ballast are presented in this paper. Moisture was found to have a significant effect on the fouled ballast strength behavior. Adding a small amount of 3% moisture (by weight of particles smaller than 3/8 in. size or smaller than 9.5 mm) caused test specimens to indicate approximately 50% decrease in shear strength of the dry fouled ballast. Wet fouled ballast samples peaked at significantly lower maximum deviator stress values at relatively smaller axial strains and remained at these low levels as the axial strain was increased.

Shear Strength Behavior of Soils Reinforced with Weak Fibers

2019 ◽  
Vol 145 (9) ◽  
pp. 06019006
Author(s):  
Chunling Li ◽  
Jorge G. Zornberg
Keyword(s):  
Shear Strength ◽  
Strength Behavior
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