Results 1 to 10 of about 13,974 (295)

Numerical prediction of the optimal shield tunneling strategy for tunnel construction in karst regions. [PDF]

open access: yesPLoS ONE, 2021
Shield tunneling in karst areas poses significant challenges, as vibration caused by the shield machine can disturb the stability of the karst caves, ultimately resulting in the collapse of a tunnel.
Zhen Liu   +4 more
doaj   +2 more sources

Data on evolutionary hybrid neural network approach to predict shield tunneling-induced ground settlements [PDF]

open access: yesData in Brief, 2020
The dataset presented in this article pertains to records of shield tunneling-induced ground settlements in Guangzhou Metro Line No. 9. Field monitoring results obtained from both the two tunnel lines are put on display.
Kun Zhang   +4 more
doaj   +2 more sources

Analysis of parameters for large cross-section quasi-rectangular EPBM in water-rich sandy strata [PDF]

open access: yesScientific Reports
Water-rich sandy stratum, characterized by high permeability, low cohesion, and strong fluidity, poses critical challenges for large-section quasi-rectangular Earth Pressure Balance Shield Machine tunneling.
Shi-ju Ma   +4 more
doaj   +2 more sources

Unified solution of earth pressure at the end of shallow buried shield at different driving angles [PDF]

open access: yesScientific Reports
This study develops a three-dimensional sliding block model for estimating average face pressure in shield tunneling, considering three distinct driving directions based on limit equilibrium theory.
Zunqun Xiao   +8 more
doaj   +2 more sources

Application of Shield Method in Coal Tunneling Construction

open access: yesMeikuang Anquan, 2020
In order to study multiple problems concerning quickly tunneling in long distance tunnel, we design and develop a shield machine based on drilling, tunneling, protecting and transporting.
LI Gang1, LI Bing, ZHANG Meng, YAO Liquan
doaj   +1 more source

Study on Stratified Settlement and Weak Reflectivity Fiber Grating Monitoring of Shield Tunnel Crossing Composite Strata

open access: yesApplied Sciences, 2023
This paper proposes a set of field test technology system for layered settlement of composite strata based on weak reflectivity fiber Bragg grating sensing technology based on the shield project of “Keyuan Station ~ Shenzhen University Station” section ...
Fucai Zhao   +6 more
doaj   +1 more source

A state-of-art review on development and progress of backfill grouting materials for shield tunneling

open access: yesDevelopments in the Built Environment, 2023
Backfill grouting plays a vital role in shield tunneling. This paper aims to present a comprehensive review of the development and progress of backfill grouting materials specifically designed for shield tunneling.
Xi Jiang   +9 more
doaj   +1 more source

Design Improvement of Cutting Part in Tunneling Shield [PDF]

open access: yesMATEC Web of Conferences, 2021
The article presents a variant for improving the design of a working body of a tunneling shield, its cutting part to be more precise. The working body of the tunneling shield has been improved with the changes in the design of a rotor working surface ...
Letopolsky Anton   +2 more
doaj   +1 more source

Synchronous Grouting Analysis of Shield Tunneling through High Water Pressure Fault Fracture Zone

open access: yesApplied Sciences, 2023
Using numerical software to establish a three-dimensional geological model of shield tunneling through fault fracture zones, considering the synchronous grouting effect at the shield tail, the disturbance of various geotechnical structures in the fault ...
Yi Zeng   +10 more
doaj   +1 more source

Analysis of Shield Tunnel Ground Deformation Characteristics and Affecting Factors in Water-Rich Soft Stratum: A Case Study on the Section Tunnel of Tianjin Metro Line 6

open access: yesApplied Sciences, 2022
With the increasing intensity of underground development, the planned metro lines will inevitably pass through water-rich soft stratum. The existing research results show that shield tunneling in water-rich stratum is prone to ground settlement and ...
Xinyu Li, Dingli Zhang, Yanjuan Hou
doaj   +1 more source

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