Results 61 to 70 of about 9,646,321 (185)

An Elasto–Plastic Hydro–Mechanical Model for Analyzing the Swelling Behavior of Heterogeneous Clay–Sulfate Rocks

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Swelling of clay‐sulfate rocks is a concern in geotechnical engineering that can damage infrastructure. In the historic town of Staufen in southwest Germany, geothermal drilling into a swellable anhydrite‐bearing clay formation resulted in water inflow and subsequent swelling, triggering ground heave and damage to more than 250 houses.
Reza Mahmoudi Kouhi, Reza Taherdangkoo, Thomas Nagel, Faramarz Doulati Ardejani, Christoph Butscher   +4 more
wiley   +1 more source

Examining the Political Dimensions of Sustainability: The Role of Freedom of Expression in Environmental Outcomes

Sustainable Development, EarlyView.
ABSTRACT Although significant efforts have been made to prevent environmental degradation, the success of these initiatives has remained limited. The primary reason for this is environmental issues' complex and multidimensional nature. Economic, political, and social dynamics play a central role in shaping environmental problems, necessitating a ...
Umut Uzar
wiley   +1 more source

Toward Enhanced Safety Management in Wave Energy Power Plant Construction Projects: FMEA and HAZOP Combination

Safety Science and Technology, EarlyView.
Consolidated FMEA–HAZOP safety management framework for WEC construction projects. ABSTRACT This study presents an advanced safety management framework for “Wave Energy Converter” (WEC) projects, addressing the inherent uncertainty, technological complexity, and environmental exposure of offshore renewable energy systems.
Panagiotis K. Marhavilas, Konstantinos Douitsis, Nick Delianidis, Stefanos Keskinis, Georgios Charalampos Kafoutis   +4 more
wiley   +1 more source

Study on Mechanism and Control Technology of Asymmetric Floor Heave in a Deep Soft Rock Main Roadway

, 2022
Considering the serious asymmetric deformation and failure of the floor of 1# main roadway in Wanglou Coal Mine, the mechanism of roadway asymmetric floor heave was studied through on-site investigation, theoretical analysis, numerical simulation, and on-
Fulian He, Kai Lv, Jiayu Song, Xuhui Xu, Wenli Zhai, Liang Li   +5 more
core   +1 more source

The Great British Productivity Puzzle and Regional Industries: A Dynamic Multilevel Spatial Frontier Analysis

Journal of Regional Science, EarlyView.
ABSTRACT Using two approaches, we contribute to sub‐national economic performance measurement by netting out the influence of a region's performance on its industries. The first approach measures performance using technical efficiency and involves introducing the first multilevel spatial stochastic frontier model.
Anthony J. Glass, Karligash Kenjegalieva
wiley   +1 more source

Floor heave mechanisms in underground coal mine roadways [PDF]

, 2019
Several underground coal mines in Australia have been experiencing excessive floor deformation in roadways, better known as floor heave. Although the phenomenon does not generally have safety implications, unexpected floor heave can cause financial ...
Mo, Sungsoon
core   +1 more source

A Study on the Floor Heave Characteristics of a Gob-Side Entry in Deep-Thick Coal Seam During Longwall Mining

Geofluids
Floor heave control becomes more and more prominent in engineering practice with the increased mining depth of the working face. The gob-side entry of the 21404 working face in Hulusu Coal Mine was taken to be the engineering background to study the gob ...
Yinghao Hao, Jinhai Liu, Xiaodong Miu, Guoli Ding, Pei Qi, Hao Wu, Linsheng Gao   +6 more
doaj   +1 more source

Mechanical analysis of floor deformation and floor heave control technology for gob-side entry retaining in medium thick coal seam with shallow cover depth

Meitan kexue jishu
Gob-side entry retaining technology is of great significance to improve coal recovery rate, improve roadway stress environment and ensure mine safety and efficiency.
Chaochao YAN, Guoen ZHANG, Tong CHANG, Pengfei WANG, Tianping WANG, Changquan WU   +5 more
doaj   +1 more source

Rapid Global Oxygen Shifts and Delayed OMZ Response: Pulse and Memory of the Pacific Decadal Oscillation

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Natural decadal variability often obscures anthropogenic trends in ocean deoxygenation. Using a global observational oxygen reconstruction (1965–2022), we investigate the role of the Pacific Decadal Oscillation (PDO) in modulating decadal oxygen variability.
Zouhair Lachkar, Said Ouala
wiley   +1 more source

Failure mechanism and control method of floor for gob-side entry retaining of inclined coal seam by impact load

Meitan kexue jishu
Due to impact loads resulting from lateral rotation and subsidence of the main roof in inclined coal seams, gob-side entry retaining exhibit severe surrounding rock deformation and failure, with particularly pronounced floor heave.
Xuesheng LIU, Zhipeng ZHAO, Deyuan FAN, Xuebin LI, Shilin SONG, Shenglong YANG   +5 more
doaj   +1 more source