Statistical mechanics has provided powerful techniques to measure mechanical properties of materials at the nanoscale and paved the way for bottom-up computational materials design. The introduction of such techniques in civil engineering applications, namely construction and geotechnical materials, remains limited to the elastic and fracture properties. This paper presents an atomistic approac...

Arch-chord coupled anti-sliding structure is a new type of composed multiple single piles in specific form. The coupling effect pile and soil the most important key point. In this article, factors that affect bearing capacity load sharing ratio arch-chord are screened out, rule evaluation index affected by each factor analyzed. results show that, with increase diameter, value structural ultimat...

Some studies reported that the anisotropic failure strength of shale will be weakened by increasing confinement. In this paper, it is found that there are various types of anisotropic strength behaviors. Four types of anisotropic strength ratio ( S A 1 ) behaviors and three types of anisotropic strength difference ( S A 2 ) behaviors have been classified based on laboratory experiments on nine ...

The objective of this paper is to investigate the effect of copulas for constructing the bivariate distribution of shear strength parameters on system reliability of geotechnical structures. First, the bivariate distribution of shear strength parameters is constructed using copulas. Second, the implementation procedure of system reliability analysis using direct Monte Carlo simulation (MCS) is ...

adhesion level for the proper running of rail wheelset on track is crucial problem in detecting slippage to avoid accidents. the slippage of rail wheels has been observed applying forward and lateral motions to slip velocity and torsion motion. the longitudinal and lateral forces behavior is watched with respect to traction force to note correlation based on angle of attack. the deriving torque...

The soil-foundation interaction is one of the most important issues in geotechnical engineering that deals with studying the soil behavior subjected to the side loading. Winkler’s model is the first and simplest method for consideration of the soil-foundation interaction. It is vitally important to determine the coefficient of subgrade reaction of the soil. Since several methods have been prov...

This paper addresses the challenges of creating realistic models soil for simulations heavy vehicles on weak terrain. We modelled dense soils using discrete element method with variable parameters surface friction, normal cohesion, and rolling resistance. To find out what type can be represented, we measured internal friction bulk cohesion over 100 different virtual samples. test model, simulat...

The microstructure of loess mainly reflects the size distribution, orientation, contact mode and pore distribution particles. six original (low clayey silt loess) on same site in Lanzhou is selected by direct shear test, high power electron microscope energy spectrum test. To simulated calculation cohesion (C) internal friction angle (φ), used parameters data, including to mineral element (Fe/A...

Abstract In order to better evaluate the high-temperature performance of asphalt mixture, based on conventional rutting test and Hamburg test, this paper further studies influence temperature, grading type shear resistance mixture by using uniaxial penetration compression test. Based Mohr Coulomb theory, cohesive force internal friction angle were calculated. analysis variance, significance tem...