Results 61 to 70 of about 406 (248)

Influence of Precast Member Corbels on Seismic Performance of Precast Beam-Slab-Column Joints

, 2021
To improve the construction efficiency of precast structures, reinforced concrete corbels acted as support members are the most common connection method.
Hongtao Liu, Taoping Ye, Pengchao Kong
core   +1 more source

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

Deep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu, Manchao He, Jun Yang, Yubing Gao, Qiang Fu, Qing Ma, Yajun Wang   +6 more
wiley   +1 more source

The method of intelligent wireless sensor to improve the water permeability of permeable asphalt concrete pavement

IET Networks, EarlyView., 2022
Abstract This research aims to study the intelligent wireless sensor to improve the water permeability of permeable asphalt concrete pavement. The water permeability of pavement is extremely important for the traffic environment. This study first briefly introduces the background and significance analysis, and then exemplifies the deployment algorithm ...
Xingmei Zhang, Cong Xu, Qi Lei
wiley   +1 more source

Dynamic geo‐hydrogeological monitoring‐driven situational awareness for real‐time floor water inrush risk prediction in deep mining

Deep Underground Science and Engineering, EarlyView.
The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li, Huiyong Yin, Fangying Dong, Tao Wu, Chao Zhang   +4 more
wiley   +1 more source

Assessment of impact of bottlenecks on evacuation in subway stations using network analysis

Developments in the Built Environment
In this paper, a novel graph-theory-based analytical framework is introduced, which maps a subway station's spatial configuration into a network model using a space syntax approach.
Jiwon Jeong, Ilwha Lee, Youngseok Oh, Jeryang Park, Seungjun Ahn   +4 more
doaj   +1 more source

Design and Application of Risk Early Warning System for Subway Station Construction Based on Building Information Modeling Real-Time Model

Advances in Civil Engineering, 2021
The problems faced by subway stations in the construction process are more complex than those by overground buildings. Therefore, the construction risk for such structures is highly unpredictable and the risk management is difficult. Building information
Qianlong Tang, Mingfeng Lei, Binbin Zhu, Limin Peng, Weimin Wu, Chenghua Shi   +5 more
doaj   +1 more source

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

Deep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

Seismic performance evaluation of underground structures using endurance time analysis

Yantu gongcheng xuebao, 2020
The endurance time analysis (ETA) is an efficient seismic performance evaluation method characterized by developing series of seismic response compatible acceleration time histories whose amplitudes increase with the duration.
ZHONG Zi-lan , ZHEN Li-bin , SHEN Yi-yao , ZHAO Mi , DU Xiu-li
doaj   +1 more source

Long-Term Evaluation of Mid-Cost Optical Particle Counters for PM2.5 Monitoring in an Underground Subway Station: Insights from a 15-Month Study

A beta-ray attenuation monitor (BAM) is preferred as a reference instrument for monitoring particulate matter in the air due to its accuracy. However, BAM cannot be used in large numbers for spatial distribution monitoring because of its high investment ...
Trieu-Vuong Dinh, Jo-Chun Kim, Da-Hyun Baek, Byeong-Gyu Park, In-Young Choi, Sang-Woo Lee   +5 more
core   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

Deep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source