Results 61 to 70 of about 950 (216)

An Adaptive Response Surface Methodology for Determining Coal Pillar Width in Geologically Variable Longwall Panels

open access: yesGeofluids, Volume 2026, Issue 1, 2026.
Simulation‐based approaches are increasingly vital for addressing complex design challenges in underground coal mining, a domain where longwall pillar design is critically challenged by geological variability, and conventional methods lack adaptive capacity. This study develops a responsive design framework integrating response surface methodology (RSM)
Sen Yang   +6 more
wiley   +1 more source

Simulations of seismic signals induced by landslides by numerical coupling of PFC and FLAC

open access: yes, 2014
本研究首先以二維顆粒流程式(PFC)模擬小林村崩塌,將垂直力量所記錄之震動訊號利用Hilbert-Huang transform (HHT)加以分析,將四個監測點所得到之震動訊號繪製成時頻圖,可估算出崩塌持續時間,並與先前現地踏勘所得到的堰塞壩資訊及甲仙寬頻地震測站所記錄之完整震動訊號做比較。 本研究再以顆粒流程式(PFC)與連體程式(FLAC)耦合方法,建立山崩流動過程之數值模型,以小林村山崩為案例。以離散元素方法(PFC)模擬山崩產生的岩塊散開滑動與流動過程,當岩塊撞擊有限差分數值模型(FLAC ...
Lin, Qun-Fu, 林群富
core   +1 more source

Effect of Dynamic Stress Produced by Rock Blasting on the Optimal Dimensioning of Room and Pillars in Horizontal Layers

open access: yesAdvances in Materials Science and Engineering, 2022
An optimal dimensioning of the room and pillars of the square or rectangular section is finding adequate transversal section support for the pillar; in that sense, all forces acting on the pillar must be evaluated.
Alcides Eloy Cano Nunez   +2 more
doaj   +1 more source

Analysis of Temperature and Displacement Fields in the Freeze Construction of Overlapping Cross‐Passages Within Water‐Rich Sand Layers

open access: yesGeofluids, Volume 2026, Issue 1, 2026.
In the construction of an F‐type cross‐passage in an overlapping‐type shield tunnel using the artificial ground freezing method, the development of the distal frozen wall is difficult to control, and ground deformation is influenced by the superimposed disturbance of successive construction steps. Existing studies are insufficient to fully characterize
Jinlei Li   +4 more
wiley   +1 more source

Stability analysis of a landslide based on FLAC 3D

open access: yesAdvances in Engineering Research Possibilities and Challenges
This paper focuses on the problem of the 1# and 2# aqueducts in the sliding sec-tion of the Huaipai Yellow River water diversion project, which were damaged due to the reactivation of the ancient landslide body. A stability analysis of the initial state of the slope was conducted.
openaire   +1 more source

A New Model for Calculating Voidage in Goaf Under Roof‐Cutting Pressure Relief Mining: Exploring the Influence of Volumetric Strain on Voidage From the Perspective of Finite Element

open access: yesEnergy Science &Engineering, Volume 13, Issue 10, Page 4674-4689, October 2025.
ABSTRACT Roof cutting and pressure relief mining technology has been applied in coal mine enterprises because of its advantages of improving the resource utilization rate. Compared to the previous longwall mining mode, the roof unloading and caving characteristics of goaf have undergone significant changes, leading to different patterns of overlying ...
Mengke Liu   +4 more
wiley   +1 more source

Seismic stability and liquefaction analysis of tailings dam.

open access: yes, 2012
Proper analysis for safe design of tailings earthen dam is necessary under static loading and more so under earthquake conditions to reduce damages of important geotechnical structure.
Choudhury, Deepankar   +1 more
core   +2 more sources

A review of multiscale numerical modeling of rock mechanics and rock engineering

open access: yesDeep Underground Science and Engineering, Volume 4, Issue 3, Page 382-405, September 2025.
Multiscale numerical methods of rock mechanics and rock engineering are reviewed, and the review results show that more attention should be paid to the development of an advanced constitutive model in addition to numerical techniques themselves. Abstract Rock is geometrically and mechanically multiscale in nature, and the traditional phenomenological ...
Xindong Wei, Zhe Li, Gaofeng Zhao
wiley   +1 more source

3D geomechanical numerical model of roadways, building of underground research facility (URF) Bukov II. stage

open access: yes, 2020
Spin-off plant GEAM of DIAMO, state enterprise, intends the construction of 2nd stage of the underground research facility (URF) Bukov in the area of the Rožná uranium deposit. The aim of this work is to compile the 3D mathematical geomechanical model of
Souček, Kamil
core  

Investigation of the behavior of tailings earthen dam under seismic conditions

open access: yes, 2009
Problem statement: A number of tailings earthen dams have failed during past earthquakes. The failure of tailings dam ultimately results into the release of the stored tailings waste deposit in the surrounding locality.
Chakrabort, Debarghya   +1 more
core   +1 more source

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