Strength and Deformation of Rockfill Material Based on Large-Scale Triaxial Compression Tests. II: Influence of Particle Breakage

2014 ◽  
Vol 140 (12) ◽  
pp. 04014071 ◽  
Author(s):  
Yang Xiao ◽  
Hanlong Liu ◽  
Yumin Chen ◽  
Jingshan Jiang
Keyword(s):  
Large Scale ◽  
Triaxial Compression ◽  
Particle Breakage ◽  
Compression Tests ◽  
Rockfill Material ◽  
Strength And Deformation ◽  
Triaxial Compression Tests

Large-scale triaxial compression tests of geocell-reinforced sand

2019 ◽  
Vol 26 (4) ◽  
pp. 388-395 ◽  
Author(s):  
F. Song ◽  
H. Liu ◽  
B. Yang ◽  
J. Zhao
Keyword(s):  
Large Scale ◽  
Triaxial Compression ◽  
Compression Tests ◽  
Reinforced Sand ◽  
Triaxial Compression Tests

scholarly journals Assessment of strength and deformation of lightweight concrete and its components under triaxial compression, taking into account the macrostructure of the material

2021 ◽  
Vol 264 ◽  
pp. 02015
Author(s):  
Chorikul Raupov ◽  
Ulugbek Shermuxamedov ◽  
Anora Karimova
Keyword(s):  
Lightweight Concrete ◽  
Triaxial Compression ◽  
Experimental Studies ◽  
Confining Pressure ◽  
Hardened Cement ◽  
Compression Tests ◽  
Triaxial Strength ◽  
Pressure Parameter ◽  
Strength And Deformation ◽  
Triaxial Compression Tests

The paper presents the results of experimental studies on the strength and deformations of lightweight concrete, mortar matrix and hardened cement paste under triaxial compression. Tests on samples were carried out using short-term triaxial proportional σ1 > σ2 = σ3 loading (i.e. axial compression + lateral hydrostatic pressure). During the loading, the ratio of the main stresses (both axial and lateral) was kept constant up to the end of tests. The experimental studies were carried out for different low ratios of σ2/σ1. A theoretical estimation has been discussed to approximate experimental results and prediction of triaxial strength values for different types of lightweight concrete. An estimation of the confining pressure parameter K has been done for the used mode of loading.

Analysis on Bolt Supporting Mechanism for Roadways Driving along next Goaf Based on Triaxial Compression Test

2012 ◽  
Vol 594-597 ◽  
pp. 1159-1162
Author(s):  
Sheng Zhong ◽  
Yong Jie Yang ◽  
Min Wang
Keyword(s):  
Mechanical Test ◽  
Triaxial Compression ◽  
Confining Pressure ◽  
Test System ◽  
Deformation Characteristics ◽  
Compression Tests ◽  
Conventional Triaxial Compression ◽  
Strength And Deformation ◽  
Rock Mechanical Test ◽  
Triaxial Compression Tests

Conventional triaxial compression tests of coal specimens are carried out by MTS815 servo-controlled rock mechanical test system, and the strength and deformation characteristics of coal under different confining pressure are analyzed. On that basis, bolt supporting mechanism of surrounding rocks of roadways driving along next goaf is studied.

scholarly journals Constitutive modelling of root-reinforced granular soils – preliminary studies

2018 ◽  
Vol 27 (2) ◽  
pp. 103-113
Author(s):  
Barbara Świtała ◽  
E. Fern
Keyword(s):  
Large Scale ◽  
Triaxial Compression ◽  
Constitutive Modelling ◽  
Model Parameters ◽  
Granular Soils ◽  
Compression Tests ◽  
Dune Stability ◽  
Dry Soil ◽  
Triaxial Compression Tests ◽  
Implementation In Matlab

A novel solution for the problem of modelling of soil reinforced with vegetation roots. An extension of the Nor–Sand model and its application to granular saturated or dry, soil–root composites. Model implementation in MATLAB: numerical simulations of drained triaxial compression tests, investigation of the sensitivity of the solution to different values of model parameters. Capturing the most important features of soil–root composites. Accounting for the progressive activation of the root’s strength. Indication of the ability of further model application to large-scale problems, such as slope or dune stability.

scholarly journals Railroad ballast behavior in triaxial compression tests with and without geogrid

2019 ◽  
Vol 265 ◽  
pp. 02001
Author(s):  
Andrei Petriaev ◽  
Victor Ganchits
Keyword(s):  
Large Scale ◽  
Triaxial Compression ◽  
Laboratory Studies ◽  
Compression Tests ◽  
Railway Ballast ◽  
Triaxial Apparatus ◽  
Strain Behaviour ◽  
Strength Tests ◽  
Triaxial Compression Tests ◽  
Recent Laboratory

This paper highlights recent laboratory studies at Emperor Alexander I St. Petersburg State Transport University, using large-scale cylindrical triaxial apparatus, which helped quantify the geogrid performance in railway ballast. The triaxial shear strength tests were conducted on ballast with and without geogrid. Effect of geogrid layers quantity on the ballast stress-strain behaviour were studied. The experimental results indicate that the geogrids have improved ballast bearing capacity up to 25%.

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