Results 141 to 150 of about 13,620,505 (264)

Key structure and bearing characteristics of 10 m super large mining height support

Meitan xuebao
ZYA29000/45/100D two column shield type hydraulic support was developed for controlling the surrounding rock of a 10 m high fully mechanized mining face.
Huijun HAN, Yajun LEI, Jinhu ZHANG, Cundi HAN, Mingsheng ZENG   +4 more
doaj   +1 more source

Managing Biodiversity Disclosure in Global Firms: How Culture, Institutions and Risk Shape Corporate Reporting

Business Strategy and the Environment, EarlyView.
ABSTRACT This study examines the drivers of biodiversity disclosure and the interplay between firm strategies and national institutions in shaping transparency. Using a global panel of 4703 firms across 40 economies from 2013 to 2022, we integrate differentiation, signalling and institutional perspectives to explain variation in reporting behaviour ...
Chi Chen, Yaman O. Erzurumlu, Giray Gozgor   +2 more
wiley   +1 more source

Forecasting Airport Passenger Flows Using Mobile Network Data: Insights for Sustainable Mobility and Strategic Infrastructure Planning

Business Strategy and the Environment, EarlyView.
ABSTRACT Airports are strategic and environmental nodes in global transport systems where rapid passenger growth challenges capacity, sustainability, and resilience. This study uses anonymized mobile network data to analyze and forecast passenger dynamics at Lisbon Airport, Portugal, linking data‐driven insights to sustainable mobility and ...
João Carlos Ferreira, Carlos M. P. Sousa, Marco Esperança, Babak Taheri   +3 more
wiley   +1 more source

Regulatory Convergence and Divergence in ESG Reporting in the Indo‐Pacific Region

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Environmental, social, and governance (ESG) reporting has evolved significantly globally over the past few decades. Many countries are now signatories to international agreements such as the United Nations Framework Convention on Climate Change (UNFCCC) and the Paris Agreement, with increasing commitments to emissions reduction targets and the
Michele John, Anulipt Chandan, Shaji Joseph, S. Vijayakumar Bharathi, Kazuyo Matsubae, Zhao Chuan, Pradthana Jaipong   +6 more
wiley   +1 more source

Failure characteristics analysis of the inclined interlayer during water‐soluble cavity construction of underground salt caverns for large‐scale energy storage

Deep Underground Science and Engineering, EarlyView.
In the process of water‐soluble cavern construction of salt cavern energy storage, since the interlayer does not dissolve in water easily, sudden collapse will cause engineering accidents such as bending and damage of the inner tube of the cavern.
Zenghui Zhao, Tianyu Li, Qing Ma, Junlong Shang, Jiaze Du, Ruizhe He   +5 more
wiley   +1 more source

A rock brittleness index based on the postpeak energy release rate and damage surface characteristics for brittle hard rock

Deep Underground Science and Engineering, EarlyView.
This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang, Zaobao Liu, Jing Xue, Bo Lu, Wei Zeng, Dengke Zhang   +5 more
wiley   +1 more source

Modeling and experimental validation of bolt–grout bond–slip behavior for deep underground excavation support

Deep Underground Science and Engineering, EarlyView.
A novel shear‐lag model, validated by pull‐out tests, incorporates a constant bond stress stage to predict the complete load–displacement response of grouted rock bolts, providing a new tool for optimizing anchorage length and material toughness in deep underground engineering. Abstract The stability of rock masses in deep underground excavations, such
Wenhui Bian, Xiaohui He, Kexue Wang, Yufei Wu, Guoxin Wang, Shaochen Zhang, Jun Yang   +6 more
wiley   +1 more source

Study on Determination of Working Resistance of Supports in Large Height and Fully Mechanized Caving Mining Face Under Thin Direct Roof

Meikuang Anquan, 2020
To propose the mechanical relationship between the support and the surrounding rock of the large-scale high-level fully mechanized top coal caving mining face, and to derive the calculation formula of the working resistance of the hydraulic support, the 13# coal seam mining of Xiegou Coal Mine is used as the engineering background, and the theoretical ...
openaire   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source