Results 91 to 100 of about 6,742 (247)

Effects of granular shape on shear modulus and damping ratio of gravel

open access: yesEarth Sciences Research Journal, 2019
The effects of the consolidation ratio, effective confining pressure, gravel content, and granule breakage on the shear modulus and damping ratio of gravel have been extensively researched in recent years.
Kai Cui, Hang Sheng
doaj   +1 more source

Relationship between the matric suction and the shear strength in unsaturated soil

open access: yesCase Studies in Construction Materials, 2020
To understand the shear strength properties for unsaturated soil with different matric suction values, a modified triaxial test device was used. The matric suction is considered an important contributor to unsaturated shear strength properties.
Idris A. Abd   +2 more
doaj   +1 more source

Full‐scale Shaking Table Tests on a 10‐story Steel Moment‐resisting Frame Building with Buckling‐restrained Braces

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT In February 2023, a comprehensive series of shaking table tests were conducted at the E‐Defense facility, the world's largest three‐dimensional earthquake simulator, on a full‐scale 10‐story steel moment‐resisting frame supplemented with BRBs.
Jun Fujiwara   +9 more
wiley   +1 more source

Shear strength characteristics of mechanically biologically treated (MBT) waste

open access: yes, 2011
Mechanical biological treatment (MBT) is the generic name for a group of processes which have been used to reduce the biodegradable content of municipal solid waste (MSW) in order to aid compliance with the Landfill Directive.
Fernando, V.I. Sudarshana C.K.   +1 more
core  

Comparing Shear Strength Dispersion Characteristics of the Triaxial and Direct Shear Methods for Undisturbed Dense Sand

open access: yes, 2022
Obtaining representative samples for laboratory shear strength testing forms the foundation of a successful geotechnical investigation program. The selection of suitable laboratory testing methods and the understanding of their limitations in the mining ...
John Smith (18044419)   +1 more
core  

Research on Optimal Width of Coal Pillars in Both Sides of Abandoned Mining Areas and Tunnel Control Technology

open access: yesEnergy Science &Engineering, EarlyView.
This study primarily investigates the optimal width for coal pillar retention in both sides of the worked‐out face section. Taking the 42201 haulage roadway of the 42201 working face at Shengxin Coal Mine as the primary research target, it analyses the optimum width for coal pillar retention through theoretical calculations, numerical simulations, and ...
Shuaifeng Yin   +4 more
wiley   +1 more source

Dependence of shape on particle size for a crushed rock railway ballast [PDF]

open access: yes, 2013
Laboratory testing of railway ballast poses practical difficulties because the particle size is often too large for most standard apparatus. There are therefore advantages in developing a scaled material whose behavior is representative of the full size ...
Le Pen, Louis   +9 more
core   +1 more source

Stability Evaluation and Parametric Optimization of Coal‐Concrete Composite Bearing Systems Under Mine‐Water‐Induced Deterioration: Experiments and FEINN Analysis

open access: yesEnergy Science &Engineering, EarlyView.
Mine‐water immersion tests reveal pronounced coal weakening (vs. minor concrete degradation), identifying coal pillars as the stability‐limiting component in composite dams. A coupled FEINN framework quantifies extreme‐pressure stability and ranks multi‐parameter designs via a normalized multi‐indicator scheme, enabling optimized dam configuration for ...
He Wen   +6 more
wiley   +1 more source

Polymaterial Lattice Discrete Particle Model for the Optimization of Lightweight Aggregate Concrete: Intragranular Fracture and Compression Behavior

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Lightweight aggregate concrete (LWAC) offers clear advantages for sustainable construction, including reduced density and improved thermal insulation. However, its mechanical and fracture behavior is difficult to characterize due to the heterogeneity and brittle crushing of porous lightweight aggregates.
Yuhui Lyu   +7 more
wiley   +1 more source

Effects of principal stress rotation and drainage on the resilient stiffness of railway foundations

open access: yes, 2013
Railway foundations play an integral role in controlling the stability of the overlying track structure and the maintenance of the overall track geometry.
Mamou, A.
core  

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