Results 1 to 10 of about 4,204 (69)

Influence of the Crack Angle on the Deformation and Failure Characteristics of Sandstone under Stepped Cyclic Uniaxial Compression with a Constant Lower Limit

open access: yesMathematics, 2023
Engineering rock structures containing joints and fissures are frequently subjected to discontinuous periodic disturbances of varying amplitudes.
Yuanmin Wang   +5 more
doaj   +1 more source

Mechanical behavior of granite residual soil during wetting considering effects of initial unloading

open access: yesYantu gongcheng xuebao, 2022
The unloading caused by slope excavation may affect soil behavior during the subsequent rainfall-induced wetting. However, the previous wetting tests do not greatly consider this fact.
SHU Rong-jun 1, 2, KONG Ling-wei 1, 2, WANG Jun-tao 1, 2, JIAN Tao 1, 2, ZHOU Zhen-hua 1, 2
doaj   +1 more source

Shear behavior of saturated silt under complex unloading paths

open access: yesYantu gongcheng xuebao, 2023
The excavation of foundation pit engineering has different unloading effects on the surrounding soil. The existing specifications mainly use the consolidated undrained strength index based on the conventional triaxial tests, which cannot describe the ...
YING Xu 1, LI Min 1, XIA Baihui 2, SHEN Nanjie 2, JIANG Gang 2, ZHONG Jianfeng 3
doaj   +1 more source

Mechanical properties and acoustic emission evolution of coal-rock combination under unidirectional unloading condition

open access: yesMeitan kexue jishu, 2023
For the rock burst disaster problems caused by unloading disturbance of deep roadway excavation, the study on the deformation and fracture mechanism of roadway surrounding rock under different unloading conditions was carried out.
Xiaochun XIAO   +4 more
doaj   +1 more source

Analysis of the Characteristics of Pore Pressure Coefficient for Two Different Hydrate-Bearing Sediments under Triaxial Shear

open access: yesJournal of Marine Science and Engineering, 2022
It is important to determine the volumetric change properties of hydrate reservoirs in the process of exploitation. The Skempton pore pressure coefficient A can characterize the process of volume change of hydrate-bearing sediments under undrained ...
Ruchun Wei   +3 more
doaj   +1 more source

Stress–Strain Strength Characteristics of Undisturbed Granite Residual Soil Considering Different Patterns of Variation of Mean Effective Stress

open access: yesApplied Sciences, 2021
Granite residual soil is one of the most frequently encountered problem soils in tropical regions, whose mechanical behavior heavily depends on the pattern of variation of mean effective stress (p’) during shearing, which can be classified into three ...
Rongjun Shu   +3 more
doaj   +1 more source

Shear behavior of coarse aggregates for dam construction under varied stress paths

open access: yesWater Science and Engineering, 2008
Coarse aggregates are the major infrastructure materials of concrete-faced rock-fill dams and are consolidated to bear upper and lateral loads. With the increase of dam height, high confining pressure and complex stress states complicate the shear ...
Liu Hanlong, Deng An, Shen Yang
doaj   +3 more sources

Discussion on several problems in design of retaining structures of deep excavation

open access: yesYantu gongcheng xuebao, 2021
Based on the laboratory tests on excavation stress paths and field test data, some problems in the design of the supporting structures of foundation pits are analyzed.
SHENG Zhi-qiang 1, 2, 3, 4, TENG Yan-jing 3, 4, LI Ping 3, 4
doaj   +1 more source

Strength Properties of Saturated Sand-Structure Interface by Triaxial Test Method

open access: yesShanghai Jiaotong Daxue xuebao, 2021
A novel test method for analyzing the influence of stress path and roughness of structure on the strength characteristics of saturated sand-structure interface by using triaxial apparatus is presented. By making a triaxial specimen with a slope structure
LIU Shiao, LIAO Chencong, CHEN Jinjian, YE Guanlin, XIA Xiaohe
doaj   +1 more source

Critical Damage and Microstructure Characteristics of Sandstone in the Three Gorges Reservoir Area by Single Specimen Method Under Different Stress Paths

open access: yesFrontiers in Physics, 2022
The critical damage value of rock is an important parameter of stability analysis when engineering rock mass. Based on the previous single test method, this paper, combined with the deformation characteristics of rock residual phase under different ...
Hua Li   +10 more
doaj   +1 more source

Home - About - Disclaimer - Privacy