Results 91 to 100 of about 31,564 (295)

A review on rockburst prediction and prevention to shape an ontology‐based framework for better decision‐making for underground excavations

Deep Underground Science and Engineering, EarlyView.
A scientometric analysis of 2449 journal articles and a comprehensive review of 336 papers were conducted, discussing and identifying challenges and research gaps in rockburst prediction and prevention and proposing an ontology‐based framework for better decision‐making in underground excavations. Abstract With underground engineering projects becoming
Hongchuan Yan, Haijiang Li, Hongqiang Xie, Mingli Xiao, Jianliang Pei, Huaizhong Liu, Jiangda He   +6 more
wiley   +1 more source

Analysis of Electromagnetic Interference Problems in AC Traction Power Supply System of Guangzhou Metro Line 22

Chengshi guidao jiaotong yanjiu
[Objective] During the normal operation of metro lines, due to incomplete rail-ground insulation, metro that adopts AC (alternating current) traction power supply system can cause electromagnetic interference on adjacent metallic oil and gas pipelines ...
Yunyun ZHAO, Guoyang SANG, Yiren LONG, Kunpeng LI, Jun YE, Xiaobin CAO   +5 more
doaj   +1 more source

Investigation on hard‐rock breaking performance and auxiliary mechanism of picks assisted with both‐sided high‐pressure water jets

Deep Underground Science and Engineering, EarlyView.
This paper investigates the high‐pressure water jet‐pick combined rock‐breaking mode (HPC), which employs high‐pressure water jets to precut grooves on both sides of the picks. The rock‐breaking patterns and performance of the HPC method are obtained, and the auxiliary rock‐breaking mechanism of water jet grooving is revealed.
Jingjing Lu, Jiancheng Xiao, Hui Zhou, Xiao Ma, Congcong Hou, Jian Cui, Fujian Yang   +6 more
wiley   +1 more source

Influence of Pile Foundation Construction on Existing Tunnels in a Metro Protection Area: Field Test and Numerical Simulation

Buildings
On the basis of the Fengqi Chaoming project in Hangzhou City, Zhejiang Province, China, this paper investigates the influence of pile foundation construction on the existing tunnels in a metro protection area to ensure the stability and safety of the ...
Gang Lin, Wenbin Ke, Shuaishuai Guo, Zhaorui Lin, Changjie Xu, Minliang Chi, Yue Xiao   +6 more
doaj   +1 more source

Doppler Modeling and Simulation of Train-to-Train Communication in Metro Tunnel Environment. [PDF]

Sensors (Basel), 2022
Zhao P, Wang X, Zhang K, Jin Y, Zheng G.
europepmc   +1 more source

First Report of the European Oak Borer, \u3ci\u3eAgrilus Sulcicollis\u3c/i\u3e (Coleoptera: Buprestidae), in the United States [PDF]

, 2018
Agrilus sulcicollis Lacordaire was first reported in North America from (Quercus rubra L.), on sticky traps, and also found in insect collections that dated from 1995.
Haack, Robert A, Petrice, Toby R, Zablotny, James E   +2 more
core   +2 more sources

Random finite element analysis on ground subsidence caused by tunnel excavation in karst regions with spatial variable soil

Deep Underground Science and Engineering, EarlyView.
This study investigates ground subsidence during tunnel excavation in karst areas, highlighting the combined effects of karst cave proximity, cave size, and soil spatial variability. Findings suggest that shorter cave distances and larger cave sizes increase subsidence variability, and a modified Peck formula is proposed for more accurate subsidence ...
Zhenghong Su, Yong Fu, Miaomiao Sun, Kailin Ding, Ying Zhao   +4 more
wiley   +1 more source

Influence Simulation Analysis of New Road Pile-plate Structure Construction on Deformation of Adjacent Metro Tunnels and High-speed Railway Bridges

Chengshi guidao jiaotong yanjiu
Objective The construction of road pile-plate structures can significantly impact adjacent metro tunnels and railway structures. Under stringent regulatory requirements and complex engineering conditions, it is essential to ensure the safety of existing ...
LIU Jiangtao, GONG Mingjie, YUAN Xiang, LIN Zihan   +3 more
doaj   +1 more source

Fuzzy random evaluation of creep model of frozen soft soil in metro tunnel construction using artificial ground freezing technique. [PDF]

Sci Rep, 2023
Yao Y, Zhu Y, Shen D, Zhang Z, Wang W.
europepmc   +1 more source

Spartan Daily, September 15, 2003 [PDF]

, 2003
Volume 121, Issue 12https://scholarworks.sjsu.edu/spartandaily/9878/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
core   +2 more sources