Results 21 to 30 of about 23,772 (258)

Strength model of a cemented body based on self-compacting characteristics of tailings

open access: yesFrontiers in Earth Science, 2023
To examine the strength and mechanical characteristics of self-compacting tailings, a direct shear test was conducted under various consolidation states and moisture contents to determine the cohesion and internal friction angle of the tailings.
Wang Jun   +5 more
doaj   +1 more source

Numerical Simulation on Borehole Instability Based on Disturbance State Concept

open access: yesEnergies, 2022
This paper carries out a study on the numerical simulation of borehole instability based on the disturbance state concept. By introducing the disturbance damage factor into the classical Mohr–Coulomb yield criterio, we establish a finite element hydro ...
Daobing Wang   +6 more
doaj   +1 more source

Comparison of Internal Friction Angles of Soils for Foundation Engineering

open access: yesIOP Conference Series: Earth and Environmental Science, 2016
The aim of the publication is to evaluate the indicative modules of the deformation of fine-grained, sandy and gravelly soils. Deformation modulus is one of the most important geotechnical properties in terms of geotechnics. The reason is that it is most important from the point of assessing subsidence of buildings and expresses the characteristics ...
Luboš Podolka   +2 more
openaire   +1 more source

Experimental study on tensile and shear strength of anthracite under supercritical CO2

open access: yesMeikuang Anquan, 2022
In the process of CO2 geological sequestration, the mechanical properties of coal will be changed after supercritical CO2 interacts with coal. Based on this, in this paper, Brazilian splitting test and variable angle shear test were carried out on ...
XIAO Chang   +3 more
doaj   +1 more source

Active State Earth Pressure based on Dubrova’s Method of Redistribution of Pressure

open access: yesElectronic Journal of Structural Engineering, 2018
Modes and magnitude of wall movement have great influence on the distribution of earth pressure behind retaining wall. For gravity retaining wall exerted by cohesionless soil rotating outward about the base, based on Dubrova’s method of redistribution ...
S.C. Wang, F. Xu, Y. Shao
doaj   +1 more source

Influence of lime stabilization on shear strength parameters of silty clay soil [PDF]

open access: yesGlasnik Šumarskog Fakulteta: Univerzitet u Beogradu, 2018
Lime soil stabilization is a well-known and often used method. One of the methods of landslide stability improvement is changing soil with materials that have better physical and mechanical characteristics. In most of the methods for determining
Spasić Marko   +2 more
doaj   +1 more source

Calculating the cohesion and internal friction angle of volcanic rocks and rock masses

open access: yesVolcanica, 2021
Rock failure criteria are key input parameters for models designed to better understand the stability of volcanic rock masses. Cohesion and friction angle are the two defining material variables for the Mohr-Coulomb failure criterion. Although these can be determined from laboratory deformation experiments, they are rarely reported.
Villeneuve, Marlène, Heap, Michael
openaire   +4 more sources

Shear-Compression Failure Condition of Key Strata Under Elastic Support During Periodic Breakage

open access: yesApplied Sciences
The shear-compression failure of key strata leads to stair-step collapse and severe mine pressure, posing significant safety risks in coal mines. Existing theories fail to account for the boundary conditions and breaking sizes of key strata, making ...
Hongjie Liu   +3 more
doaj   +1 more source

Experimental Study on the Effects of Initial Shear Stress and Vibration Frequency on Dynamic Strength of Saturated Sands

open access: yesAdvances in Materials Science and Engineering, 2019
The cyclic triaxial system is used to investigate the effects of confining pressure, initial shear stress, cyclic stress ratio, and vibration frequency on the dynamic strength characteristics of saturated sand in the Wenchuan area. Results show that when
Jian Zhang, Jiuting Cao, Sijie Huang
doaj   +1 more source

Physical characterization of coffee after roasting and grinding

open access: yesSemina: Ciências Agrárias, 2014
Flowability is an important characteristic of handling process for efficiency and reliability purpose of post-harvest operations, which are governed by the physical properties of the product.
Gabriel Henrique Horta de Oliveira   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy