Results 61 to 70 of about 5,255,039 (212)

An Evaluation of the Mine Water Inrush Based on the Deep Learning of ISMOTE

Natural Hazards, 2023
Abstract In order to establish an effective coal mine floor water inrush prediction model, a neural network prediction method of water inrush based on an improved SMOTE algorithm expanding a small sample dataset and optimizing a deep confidence network was proposed.
Zhang Ye, Tang Shoufeng, Shi Ke, Tong Xiamin   +3 more
openaire   +1 more source

Damage Characteristics and Stress Distribution Law of Overburden Rock in Multiple Mining of Close Coal Seams

Energy Science &Engineering, EarlyView.
This study on close coal seams shows that multi‐seam mining increases the height of the fractured zone from approximately 26 m (single upper‐seam mining) to about 49 m. When the lower seam is mined after the extraction of the upper seam, the heights of both the caved zone and the fractured zone increase by approximately two times.
Xiaoyu Wu, Lei Guo, Zedong Sun, Xiaowei Wu, Nan Zhang   +4 more
wiley   +1 more source

Unfavorable Geology and Mitigation Measures for Water Inrush Hazard during Subsea Tunnel Construction: A Global Review

, 2022
Water inrush hazard seriously threatens construction safety of subsea tunnels in unfavorable geological areas. In recent years, a large number of subsea tunnels have been built worldwide, some of which have experienced many water inrush disasters ...
Yuancheng Cai, Jigang Li, Kunjie Tang, Hongjian Liao, Fangyuan Niu, Zhichao Wang, Tong Liu, Tao Yang, Chi Liu, Qiang Wang, Dedi Liu   +10 more
core   +1 more source

Fracture Development Mechanism of Water‐Isolating Soil Layers During Downward Mining of Shallow‐Buried Coal Seam Groups

Energy Science &Engineering, EarlyView.
This study systematically investigates the fracture development mechanisms of water‐isolating soil layers under the coupled effects of repeated mining and groundwater seepage during the downward mining of shallow‐buried coal seams. The findings provide a theoretical basis for evaluating stratum stability and preventing roof water inrush.
Tao Yang, Shuqi Zhang, Jie Zhang, Haifei Lin, Dong Liu, Hui Liu, Yiming Zhang, Jianping Sun   +7 more
wiley   +1 more source

Two‐Stage Power Management for Triboelectric Nanogenerators: Toward Reliable and Efficient Self‐Powered Systems

Safety Science and Technology, EarlyView.
This review systematically outlines two‐stage power management circuits for TENGs, integrating AC–DC and DC–DC conversion to overcome high impedance and unstable output. It highlights strategies for efficient energy extraction and stable power delivery, enabling the development of reliable self‐powered systems for safety monitoring and applications in ...
Jiaxin Hu, Zhiyong Zhang, Haiyang Shao, Tianyu Shi, Baoling Yuan, Ming‐Lai Fu   +5 more
wiley   +1 more source

The Analogia Entis for Reformed Theology: Retrieving Calvin's Implicit Metaphysics

Modern Theology, EarlyView.
Abstract The famous controversy between Emil Brunner and Karl Barth which led to Barth's ‘No!’ was driven by disagreements over how to read John Calvin: Barth and Brunner never agreed on whether Calvin had a doctrine of the analogy of being. This article rekindles the debate.
Silvianne Aspray
wiley   +1 more source

Coal mine water inrush prediction based on LSTM neural network

, 2019
According to the prediction of water inrush from coal seam floor, based on the summarization of existing water inrush prediction methods and theories, the feature selection experiment shows that water pressure, distance from the working surface ...
Cheng, FEI, Lili, DONG, Chaofan, CAO, Xiang, ZHANG   +3 more
core   +1 more source

Intelligent Monitoring and Warning for Road‐Network Tunnels Via Feature Matching

Applied Research, Volume 5, Issue 5, October 2026.
To address the safety issues in mountain tunnel construction, an early warning model integrating association rules and text vectorization feature matching was developed. The validation on two tunnels demonstrated that this model can accurately predict accident types and actively identify risks, providing support for dynamic safety management and the ...
Yinghui Zhang, Xianghui Liu
wiley   +1 more source

Technology and application of integrated treatment of water source and channel for floor borehole water inrush in Zhuzhuang Coal Mine

Meikuang Anquan, 2023
In order to control the water inrush of Ⅲ638 working face floor verification borehole in Zhuzhuang Coal Mine, we first analyzed the reasons of the water inrush, and confirmed that the inrush water source was L3 limestone water, and the water channel was ...
LI Zhi, ZHENG Shitian, WANG Yuhang
doaj   +1 more source

Multi‐Source Hydrogeological Investigation, Water Inflow Prediction, and Water–Mud Inrush Risk Zoning for a Strongly Karstified Limestone Tunnel: A Case Study of the Dongyang Tunnel

Engineering Reports, Volume 8, Issue 10, October 2026.
Multi‐source hydrogeological investigation identified widespread karst cavities and water‐bearing fractured zones along the Dongyang Tunnel. Comparative inflow prediction yielded a conservative design control value of 1557.61 m3/day, supporting section‐specific water–mud inrush zoning and targeted drilling, grouting, controlled drainage, and ...
Guowei Wu, Yong Liu
wiley   +1 more source