Results 21 to 30 of about 15,621 (262)

Creep and Hardening Characteristics of Anthracite under Graded Static–Dynamic Coupled Loading

open access: yesApplied Sciences, 2023
Remaining coal pillars in remining areas exhibit clear creep characteristics, and dynamic pressure accelerates their instability and failure. The creep and hardening characteristics of coal under dynamic pressure are of great engineering significance for
Shaofei Yue   +5 more
doaj   +1 more source

Creep Characteristics and Creep Model of Coal Based on Pore Water Pressure

open access: yesProcesses, 2023
Anthracite in a specific area of Shanxi Province is the subject of this essay’s research. In the creep studies, different porosity intervals and pore water pressures were employed to evaluate the mechanical properties of creep under various test paths.
Fumin Zhang   +2 more
openaire   +1 more source

Time-Dependent Creep Constitutive Model of Roadway Surrounding Rock Based on Creep Parameters

open access: yesGeofluids, 2022
In order to better study the creep deformation characteristics of rock under different stresses, the generalized Burgers model was used as the basic model after analyzing the creep characteristics of rock and its relationship with stress and strain, and ...
Yukun Ma   +4 more
doaj   +1 more source

Experimental study on creep failure characteristics of coal mass under multistage stress and construction of prediction model

open access: yesFrontiers in Earth Science, 2023
The creep and failure mode of stratified coal is complex and challenging to predict. This is highly attributed to the internal stratified structure generated during coal forming.
Yiran Yang   +5 more
doaj   +1 more source

Creep Characteristics of Weathered Soils and Application of Singh-Mitchell's Creep Formula [PDF]

open access: yesJournal of The Korean Society of Agricultural Engineers, 2009
Soils exhibit creep behavior in which deformation and movement proceed under a state of constant stress or load. In Korea, weathered soil is abundant and occupies around one-third of the country. Weathered soil is visually described as a sandy or gravelley soil, but the behavior is quite different from the behavior of usual sand and gravel.
Tae-Ho Bong   +4 more
openaire   +1 more source

Improved Nonlinear Nishihara Shear Creep Model with Variable Parameters for Rock-Like Materials

open access: yesAdvances in Civil Engineering, 2020
Creep property is an important mechanical property of rocks. Given the complexity of rock masses, mechanical parameters change with time in the creep process.
Hang Lin   +6 more
doaj   +1 more source

A memory-dependent three-dimensional creep model for concrete

open access: yesCase Studies in Construction Materials
The study of creep models for concrete is of great significance in analyzing and predicting the long-term stability of concrete structures. Based on the theory of memory-dependent derivatives, memory-dependent viscous dashpots that can describe the ...
Deng Zhang   +4 more
doaj   +1 more source

Triaxial Creep Test and Particle Flow Simulation of Coarse-Grained Soil Embankment Filler

open access: yesFrontiers in Earth Science, 2020
In order to study the creep characteristics of the coarse-grained soil as embankment filler under long-term vehicle loading, the creep test was performed on coarse-grained soil using the large scale dynamic and static triaxial instruments, and the creep ...
Zhongming He   +3 more
doaj   +1 more source

A novel nonlinear creep model based on damage characteristics of mudstone strength parameters.

open access: yesPLoS ONE, 2021
Mudstone interlayer is a weak layer in rock engineering. When it is subjected to continuous stress higher than its damage threshold, due to the dislocation of particles in mudstone crystals and the expansion of cracks, mudstone strength is gradually ...
Bin Hu   +4 more
doaj   +1 more source

Mathematical methods to unloading creep constitutive model of rock mass under high stress and hydraulic pressure

open access: yesAlexandria Engineering Journal, 2021
The main purpose of this paper is to study the unloading mechanical characteristics of rock mass unloading under high stress and high water pressure. An unloading creep test of deep sandstone was conducted under different initial stresses and hydraulic ...
Ningyu Zhao, Haifei Jiang
doaj   +1 more source

Home - About - Disclaimer - Privacy