Results 21 to 30 of about 1,971,138 (125)

Lake Mead Intake No. 3

Engineering, 2017
As a result of a sustained drought in the Southwestern United States, and in order to maintain existing water capacity in the Las Vegas Valley, the Southern Nevada Water Authority constructed a new deep-water intake (Intake No.
Jon Hurt, Claudio Cimiotti
doaj   +1 more source

Low-volume-loss tunnelling for London ring main extension [PDF]

, 2010
The Thames Water ring main extension is a 4.5 km long tunnel from Stoke Newington, in the London borough of Hackney, to New River Head in Finsbury, in the London borough of Islington. The 2.85 m i.d.
B. D. Jones, Jones, Benoît
core   +1 more source

A Geotechnical Perspective on a Complex Geological Environment in a High-Speed Railway Tunnel Excavation (A Case Study from Türkiye)

Infrastructures, 2022
The T26 tunnel was designed within the scope of the Ankara-Istanbul high-speed railway in accordance with the speed of 250 km/h. Some serious problems and excessive deformations were encountered during the excavation works. The deformations in the tunnel
Candan Gokceoglu, Ebu Bekir Aygar, Hakan A. Nefeslioglu, Servet Karahan, Suat Gullu   +4 more
doaj   +1 more source

On-site measurement and environmental impact of vibration caused by construction of double-shield TBM tunnel in urban subway

Scientific Reports, 2023
The vibration generated during the construction of subway tunnels with double-shield tunnel boring machine (TBM) has a significant impact on the environment, which has caused multiple complaints from residents.
Zhenyong Wang, Yusheng Jiang, Xiaokang Shao, Chenglong Liu   +3 more
doaj   +1 more source

Research on Prediction of TBM Performance of Deep-Buried Tunnel Based on Machine Learning

Applied Sciences, 2022
Based on the relevant data in the construction process of the south of the Qinling tunnel of the Hanjiang-to-Weihe River Diversion Project, this article obtains the main influencing factors of the tunnel boring machine (TBM) performance of the deep ...
Tianhui Ma, Yang Jin, Zheng Liu, Yadav Kedar Prasad   +3 more
doaj   +1 more source

Artificial intelligence for tunnel boring machine penetration rate prediction

, 2023
Penetration rate prediction of Tunnel Boring Machines (TBM) is critical for understanding excavation performances. In this paper, we investigate the possibility of developing machine learning models that accurately predict the Penetration Rate of a TBM ...
Flor A., Danzi A., Amadini F., Mei A., Cernera F., Sassi F., La Morgia M.   +6 more
core   +1 more source

The Practice of Forward Prospecting of Adverse Geology Applied to Hard Rock TBM Tunnel Construction: The Case of the Songhua River Water Conveyance Project in the Middle of Jilin Province

Engineering, 2018
An increasing number of tunnels are being constructed with tunnel-boring machines (TBMs) due to the increased efficiency and shorter completion time resulting from their use.
Shucai Li, Lichao Nie, Bin Liu
doaj   +1 more source

Study on the Horizontal Axis Deviation of a Small Radius TBM Tunnel Based on Winkler Foundation Model

Applied Sciences, 2020
During the construction stage of the small radius TBM (tunnel boring machine) interval, the improper control of the boring parameters and the boring posture can cause the horizontal axis deviation of the shield tunnel. In order to address this issue, the
Shifan Qiao, Ping Xu, Ritong Liu, Gang Wang   +3 more
doaj   +1 more source

Stability Evaluation of TBM Pilot Tunnels to Rear Blasting Using the Protection Shield

Applied Sciences, 2021
Recent studies have increasingly investigated construction methods for tunnel excavation because of growing underground space development. Although the New Austrian tunneling method (NATM)—a representative tunnel excavation method—can be applied to ...
Suk-Min Kong, Sang-Il Choi, Seung-Bo Shim, Hana Lee, Dong-Wook Oh, Seong-Won Lee   +5 more
doaj   +1 more source

Research on the Attitude Control Strategy of TBM Digging with V-Shaped Propulsion System

Applied Sciences
To address the challenges in controlling a Tunnel Boring Machine (TBM) equipped with a V-type propulsion system during excavation, a digging attitude control strategy based on a nonlinear controller is introduced.
Huabei Wang, Liping Xu, Xiaolei Zhou, Bingjing Guo, Liujin Cai   +4 more
doaj   +1 more source