Results 41 to 50 of about 3,185 (251)

Disaster knowledge factors: benefits and challenges [PDF]

Disasters bring about the loss of lives, property, employment and damage to the physical infrastructure and the environment. The number of reported disasters has increased steadily over the past century and risen very sharply during the past decade ...
Pathirage, C. P., Amaratunga, Dilanthi, Haigh, Richard, Seneviratne, T. K. K.   +3 more
core   +3 more sources

Critical expansion points: Mechanical signs of surrounding rock instability

Deep Underground Science and Engineering, EarlyView.
This study proposes the Rock Bearing‐Expansion Model (RockBEM) with critical expansion points (CEPs) to quantify post‐peak damage stages in deep‐buried rock masses via plane strain compression test (PSCT). CEP hysteresis&interval ratios reveal bearing performance dynamics and failure severity, advancing mechanistic insights into deep underground rock ...
Jiaqi Wen, Chang Deng, Haijun Wang, Lei Tang, Jihong Yu   +4 more
wiley   +1 more source

Resilience Analysis of a Large-Span Stadium Under Typhoon-Induced Wind Hazards

Buildings
Large-span stadium roofs in coastal regions are highly vulnerable to typhoon-induced wind damage, and their post-event performance depends on both structural safety and functionality recovery.
Lixin Wang, Jianfu Lin, Sijian Lin, Zihan Zhou, Yangjin Yuan, Jiaxin Zhang, Yuxuan Lin   +6 more
doaj   +1 more source

An optimizing microseismic method for rock burst early warning based on mining production process

Deep Underground Science and Engineering, EarlyView.
A classification early warning method of rock burst based on hourly microseismic data is proposed, which can be combined with the on‐site production process to provide more timely warning. Abstract Microseismic (MS) events have been reported in nearly every coal mining country, which could well lead to rock burst in underground coal mines.
Zepeng Han, Linming Dou, Wu Cai, Mingbo Chi, Guojun Xi, Shuai Chen, Biao Jiao   +6 more
wiley   +1 more source

Comparison of several seismic active earth pressure calculation methods for retaining structures

Open Geosciences
Earthquake earth pressure is one of the key parameters for the seismic design of retaining structures. In this work, the seismic earth pressure calculation methods used in the design specifications of retaining walls, bridge abutments, and other ...
Huang Xin, Qiao Yanyang, Cai Xiaoguang, Bo Jingshan, Li Sihan, Li Yueqiang   +5 more
doaj   +1 more source

Reflections on the development of earthquake networks in cities and counties in the new era

地震科学进展, 2021
There are a large number of earthquake networks under the management of cities and counties，which have made historical contributions to reducing earthquake disasters and promoting the development of earthquake prevention and disaster reduction. In recent
Kun Liu, Hua Zhang, Yaqin Zhao
doaj   +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

Resilience-Based Seismic Optimization of Buildings Using Tuned Mass Dampers

Buildings
A multi-objective tuning framework for optimizing Tuned Mass Damper (TMD) systems is presented. This framework optimizes the controlling parameters of TMDs while considering building resilience. The employed optimizer is the multi-objective HBA.
Lixin Wang, Jianfu Lin, Sijian Lin, Zihan Zhou, You Dong, Jafar Jafari-Asl, Jiaxin Zhang   +6 more
doaj   +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 and policy suggestions on the popularization of science after the great Tangshan earthquake

地震科学进展, 2020
With increasing attention paid by the state to the popularization of science for earthquake prevention and disaster reduction, the construction of natural disaster monitoring and early warning system, and the modernization of natural disaster prevention ...
Yuxin Zhou, Yin Zhang, Zhiqing Yang, Binqiao Duan, Zeshu Li   +4 more
doaj   +1 more source