Results 21 to 30 of about 5,371 (247)

Seismic Wave Propagation Characteristics and Their Effects on the Dynamic Response of Layered Rock Sites

open access: yesApplied Sciences, 2022
To investigate the seismic response of layered rock sites, a multidomain analysis method was proposed. Three finite element models with infinite element boundaries for layered sites were analysed.
Lihu Dong, Danqing Song, Guangwei Liu
doaj   +1 more source

Study on the effect of rock stratum structure on the stability of weakly cemented layered floor and the floor control measures: A case study of Meihuajing Mine

open access: yesEnergy Science & Engineering, 2023
Given the deformation and instability of the layered floor of weakly cemented soft rock roadway, taking the mining roadway of Meihuajing Mine as the engineering background, the deformation and instability mechanism of the floor and the control measures ...
Ye Zhu   +4 more
doaj   +1 more source

Study on Mechanical Problems of Complex Rock Mass by Composite Material Micromechanics Methods: A Literature Review

open access: yesFrontiers in Earth Science, 2022
The mechanical analysis of complex rock mass is a difficult problem, which often occurs in scientific research and practical engineering. Many achievements have been made in the study of rock mass composite problems by composite material micromechanics ...
Junzhao He   +8 more
doaj   +1 more source

Seismic Responses and Damage Mechanisms of Deep-Buried Underground Powerhouse in Layered Rock Mass

open access: yesShock and Vibration, 2022
Layered rock mass generally has adverse effects on the seismic stability of deep-buried underground powerhouses. Aiming at the complexity of seismic wave field in deep-buried underground powerhouses, the obliquely input methods of P and SV waves ...
Meng Zhao   +3 more
doaj   +1 more source

Numerical Simulation of Rock Mass Structure Effect on Tunnel Smooth Blasting Quality: A Case Study

open access: yesApplied Sciences, 2021
Taking the Zigaojian tunnel, Hangzhou–Huangshan high-speed railway, China, as background, the rock mass structure effect on smooth blasting quality was studied.
Jianxiu Wang   +8 more
doaj   +1 more source

Optimization of direct-hole cutting blasting technology for deep-buried layered surrounding rock diversion tunnels

open access: yes地质科技通报, 2023
Objective In recent years, the trend of tunnel blasting construction extending to depth is becoming more and more significant, and the influence of layered rock mass in deep buried diversion tunnel on cutting quality in blasting construction is the key ...
Shouguo Jiang   +4 more
doaj   +1 more source

Blastability Classification of Fractured Rock Mass Based on Weighted Clustering Analysis

open access: yesChemical Engineering Transactions, 2017
This paper classifies the blastability of fractured rock mass based on the solid coefficient, rock impedance, unit explosive consumption and mean fracture spacing. Specifically, an evaluation model was established according to the principle of clustering
Tiejun Tao   +4 more
doaj   +1 more source

Experimental study on the shear failure of layered rock bridges

open access: yesFrontiers in Earth Science, 2023
The structural face of rock plays a decisive role in the stability of geotechnical engineering, and the mechanism of failure destabilization of layered rock masses is still unclear.
Jianxin Yu   +7 more
doaj   +1 more source

Prediction of Blasting Vibration Velocity of Layered Rock Mass under Multihole Cut Blasting

open access: yesShock and Vibration, 2021
In the blasting construction of underground engineering in layered rock mass, the mechanism of cut blasting and the propagation law of blasting vibration waves are very complex.
Jie Zhu   +3 more
doaj   +1 more source

An Index for Estimating the Stability of the Layered Rock Masses under Excavation Disturbance

open access: yesAdvances in Materials Science and Engineering, 2018
The mechanical behaviours of layered rock mass exhibit significant differences in the directions parallel and vertical to the bedding planes. The deformation and failure of a layered rock mass has remarkable weak-plane dependence, which brings a major ...
Ding-ping Xu   +4 more
doaj   +1 more source

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