Results 61 to 70 of about 34,949 (251)

Geological and geotechnical challenges on the Great Dyke of Zimbabwe and their impact on hardrock pillar design

open access: yesDeep Underground Science and Engineering, EarlyView.
The Great Dyke of Zimbabwe is notable for its rich platinum group metal deposits but poses significant geological and geotechnical challenges due to its complex rock types and structural features. Traditional pillar design methods are insufficient for addressing these complexities; the study suggests incorporating advanced techniques such as machine ...
Tawanda Zvarivadza   +3 more
wiley   +1 more source

InSAR-based method for deformation monitoring of landslide source area in Baihetan reservoir, China

open access: yesFrontiers in Earth Science, 2023
As a cascading disaster, the surge caused by the reservoir bank landslide seriously affects the stability of the reservoir bank and the dam body. In addition, large-scale hydropower projects are usually built in mountain and canyon areas with active ...
Meishan Liu   +9 more
doaj   +1 more source

Real‐time monitoring of tunnel structures using digital twin and artificial intelligence: A short overview

open access: yesDeep Underground Science and Engineering, EarlyView.
How artificial intelligence (AI) and digital twin (DT) technologies are revolutionizing tunnel surveillance, offering proactive maintenance strategies and enhanced safety protocols. It explores AI's analytical power and DT's virtual replicas of infrastructure, emphasizing their role in optimizing maintenance and safety in tunnel management.
Mohammad Afrazi   +4 more
wiley   +1 more source

How professional seismic stations in Yunnan play a role in earthquake prevention and disaster reduction

open access: yes地震科学进展, 2020
China is a country with many earthquakes,and Yunnan is a province with frequent earthquakes. The Tonghai earthquake with a magnitude of 7.8 in 1970 caused more than 10 000 casualties. In recent years,government departments have increased their efforts on propagating the science and popularization of earthquakes.
Hua Jia, Wenpin Qian, Xuehui Yang
openaire   +1 more source

Study on fracture parameter calibration and failure characteristics of rock with hole and crack

open access: yesDeep Underground Science and Engineering, EarlyView.
The SIF and plastic zone equations for a single hole and crack have been derived. The model's failure state leads to the identification of four types of cracks. The plastic zone increases with increased brittleness and decreased crack length. Abstract Cracks within the surrounding rock of roadways significantly affect their stability and failure ...
Shaochi Peng, Wensong Wang
wiley   +1 more source

Review and prospects of shear test of bolted rock joints

open access: yesDeep Underground Science and Engineering, EarlyView.
The laboratory shear test equipment, test method, and numerical simulation of bolted rock joints were summarized. The shortcomings and limitations of the current research were analyzed, and the research prospects were proposed. Abstract Rock bolting is a critical approach in geotechnical engineering for supporting weak rocks.
Shulin Ren   +4 more
wiley   +1 more source

2018年吉林松原MS5.7地震电离层TEC异常分析

open access: yesDizhen xuebao
利用美国喷气动力实验室(JPL)提供的全球电离层总电子含量(TEC)网格数据分析2018年5月28日吉林松原MS5.7地震空间电磁异常情况。通过算法对比确定滑动四分位法的优势,并利用该方法计算此次地震从震前14天至震后6天的电离层TEC异常变化的时间序列,结合空间环境和ΔTEC异常二维空间分布情况进一步分析,结果显示:① 极区磁亚爆强烈时段越靠近北部电离层扰动越强烈;② 震前TEC观测值先增大后减小,震后又回升,电离层异常幅度随着震中距的减小而增大;③ 电离层在空间分布上 ...
Hua Nian   +6 more
doaj   +1 more source

Great East Japan Earthquake, JR East Mitigation Successes, and Lessons for California High-Speed Rail, MTI Report 12-37 [PDF]

open access: yes, 2015
California and Japan both experience frequent seismic activity, which is often damaging to infrastructure. Seismologists have developed systems for detecting and analyzing earthquakes in real-time.
Edwards, Frances, Goodrich, Daniel C.
core   +1 more source

Shear behavior of bolt–grout interfaces under constant normal stiffness: Influence of grout strength and thickness

open access: yesDeep Underground Science and Engineering, EarlyView.
The effects of grout strength and thickness on the shear behavior of bolt–grout interfaces (BGI) under constant normal stiffness conditions are investigated. Shear strength, failure modes, and acoustic emission characteristics are examined. The findings reveal that grout strength exerts a significantly greater influence on BGI shear strength and ...
Sunhao Zhang   +5 more
wiley   +1 more source

An exploration of the construction industry's role in disaster preparedness, response and recovery [PDF]

open access: yes, 2006
The construction industry’s role in reconstruction activities following disasters such as the Indian Ocean Tsunami, is well documented. In particular, post-disaster reconstruction has been the subject of a significant body of research, with particular ...
Amaratunga, Dilanthi   +2 more
core  

Home - About - Disclaimer - Privacy