Results 11 to 20 of about 106,010 (167)

Research on muck conditioning for EPB shield tunnelling in composite formation

open access: yesScientific Reports
Compared with simple formations, EPB (earth pressure balance) shield tunnelling in composite formations encounters severe problems with muck conditioning and require improved muck conditioning technology to fulfil expectations for continuous and ...
Yalong Jiang   +5 more
doaj   +4 more sources

Soil Conditioning for EPB Shield Tunnelling

open access: yesKSCE Journal of Civil Engineering, 2013
The use of conditioning agents that change the mechanical and hydraulic behavior of a cohesionless soil into an impervious and plastic paste is the key point for the correct management of EPB (Earth Pressure Balance) shield tunneling.
Peila, Daniele
core   +4 more sources

Prediction of Ground Surface Settlements Induced by EPB Shield Tunneling in Water-Rich Soft Strata

open access: yesApplied Sciences, 2022
The main goal of this study is to enhance the prediction of ground surface settlements induced by Earth pressure balance (EPB) shield tunneling. In the setting of Changzhou, China, a comprehensive database of long-term ground-displacement findings from ...
Yi Yang   +4 more
doaj   +2 more sources

Experimental Study on the Soil Conditioning Materials for EPB Shield Tunneling in Silty Sand

open access: yesAdvances in Civil Engineering, 2020
Earth pressure balance (EPB) shield tunneling in a silty sand stratum is frequently faced with the wear of rotary cutter disc, clogging, or even collapse of workface due to its noncohesive and discrete properties of silty sand material. Soil conditioning
Chi-Hao Cheng   +3 more
doaj   +2 more sources

Research on Ground Settlement due to EPB Shield

open access: yesApplied Mechanics and Materials, 2011
The surface settlement is affected by many factors due to EPB shield. This paper takes the shield construction of Guangzhou Metro Line 5 as an example, carries out three dimensional numerical experiments on the ground settlement rule.
Zhi Gang Yan
core   +2 more sources

Unstuck Technology for EPB/TBM Dual Mode Shield Machine Stuck in Rock Stratum

open access: yesChengshi guidao jiaotong yanjiu
[Objective] During the tunneling process of the EPB (earth pressure balance shield machine)/TBM (full-face hard rock tunnel boring machine) dual-mode shield tunneling machine, problems such as excessive wear of the cutting tools and improper setting of ...
DUAN Yueqiang
doaj   +2 more sources

The Efficiency Analysis on Cutting Power of EPB Shield Cutter

open access: yesMaterials Science Forum, 2011
There are two basic types of EPB shield cutter: panel type and spoke type. The efficiency and process of the driving work will be directly related to the chose of the cutter type. Torque model of the shield cutter can be established by analyzing the load
Jian Qin Liu   +4 more
core   +2 more sources

Numerical Simulation Study of Shield Tunnel Construction Under Canal in Water-Rich Sand Layer

open access: yesAdvances in Civil Engineering
To address the amplified ground deformation, the difficulty of controlling shield construction parameters, and the pronounced seepage-related risks associated with twin earth pressure balance (EPB) shield tunneling beneath a canal and a mid-channel ...
Jianhua Liu   +4 more
doaj   +2 more sources

Earth pressure field modeling for tunnel face stability evaluation of EPB shield machines based on optimization solution [PDF]

open access: yes, 2020
Earth pressure balanced (EPB) shield machines are large and complex mechanical systems and have been widely applied to tunnel engineering. Tunnel face stability evaluation is very important for EPB shield machines to avoid ground settlement and guarantee
Li, Bo   +5 more
core   +1 more source

Multi-Step Combined Control Technology for Karst and Fissure Water Inrush Disaster During Shield Tunneling in Spring Areas

open access: yesFrontiers in Earth Science, 2021
Shield tunneling in highly fractured karst water-rich conditions easily results in water inrush disaster or even causes the roof of the karst caves to collapse.
Xing Huang   +6 more
doaj   +1 more source

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