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Clogging Prevention of Slurry–Earth Pressure Balance Dual-Mode Shield in Composed Strata with Medium–Coarse Sand and Argillaceous Siltstone

Applied Sciences, 2023
The slurry–earth pressure balance dual-mode shield has an earth pressure balance (EPB) and slurry shield functions. Based on a shield tunnel project of Guangzhou Metro Line 12 in China, this study investigates the clogging prevention of a slurry–earth ...
Zhao Yang, Pengfei Liu, Peishuai Chen, Shuchen Li, Fuquan Ji   +4 more
doaj   +2 more sources

Earth pressure balance control of shield tunneling machine based on nonlinear least squares support vector machine model predictive control

Measurement + Control, 2019
Background: Earth pressure balance shield machines are widely used in underground engineering. To prevent ground deformation even disastrous accidents, the earth pressure in soil chamber must be kept balance to that on excavation face during shield ...
Xuanyu Liu, Kaiju Zhang
doaj   +2 more sources

Evaluation of Face Support Pressure Prediction for Earth Pressure Balance (EPB) Tunnelling using Analytical and 3-Dimensional Finite Element Modelling [PDF]

International Journal of Technology, 2021
A shield tunnelling technique is usually selected using earth pressure balance or slurry methods for tunnel construction in urban areas with soft and saturated ground.
Fahmi Aldiamar, Masyhur Irsyam, Bigman Hutapea, Endra Susila, Desyanti   +4 more
doaj   +2 more sources

Researches on the Excavation Disturbance of Shield Tunnel in Sandy Cobble Ground

Geofluids, 2022
The sandy cobble ground has loose structure, uneven particle size, and random distribution characteristics, which may lead to the local collapse of ground. This paper carried out field tests based on the project of Luoyang urban rail transit.
Wei Wang, Jingjing Liu, Xueming Zhang, Jing Chen   +3 more
doaj   +1 more source

Auxiliary air pressure balance mode for EPB shield tunneling in water-rich gravelly sand strata: Feasibility and soil conditioning

Case Studies in Construction Materials, 2022
Machine loads are always high, or soil conditioning is required to be rigorous when the pressure chamber is full of excavated soil during earth pressure balance (EPB) shield tunneling.
Shuying Wang, Pengfei Liu, Zhenyu Gong, Peng Yang   +3 more
doaj   +1 more source

Research on Strata Deformation Induced by EPB Tunneling in Round Gravel Stratum and Its Control Technology

Applied Sciences, 2022
Recently, many studies have been conducted on the stratum deformation induced by earth pressure balance (EPB) shield tunneling in soft soil and sand. Movement laws vary largely among different strata. However, at present, relevant research mainly focuses
Zhe Wang, Weihao Feng, Shuwei Wu, Pengfei Wu, Sifa Xu, Zewei Yao, Jiuchun Sun   +6 more
doaj   +1 more source

Simplified Analytical Method for Predicting the Lateral Ground Displacements due to Shield Tunnelling

Advances in Civil Engineering, 2021
Earth pressure balance or slurry shield tunnelling will squeeze the subsoils and lead to lateral outward ground displacement. However, current methods to estimate the shield tunnelling-induced ground displacements generally use the methods based on the ...
Lianwei Sun, Zhong-chao Li, Rong-zhu Liang   +2 more
doaj   +1 more source

Research on the Prediction Model of Shield Advancement Rate in Sandy Cobble Ground of Beijing

Advances in Civil Engineering, 2021
The long distance and tight construction period of the earth pressure balance shield tunneling in Beijing sandy cobble ground have a very positive impact on grasping the construction progress and improving the organization efficiency.
Qing He, Liying Xu, Zhiyong Yang, Weiqiang Qi, Zhigang Zhang, Ziyu Shen   +5 more
doaj   +1 more source

Data on prediction of geological characteristics during shield tunnelling in mixed soil and rock ground

Data in Brief, 2022
This data presented in this article pertain to measured data obtained from earth pressure balance (EPB) shield tunelling of Guangzhou-Foshan intercity railway project.
Tao Yan
doaj   +1 more source

A Displacement-Based Theory for Predicting the Support Force on the Shield Tunneling Surface in Sandy Soil Layers

Advances in Civil Engineering, 2021
Due to the poor stability of the loose sandy soil layer, if the support force is not properly controlled during the construction process of the shield tunnel using the earth pressure balance method, it is easy to cause the ground to collapse or uplift ...
Guang Sun, Han Liu, Zhiyuan Guo, Ranjie Li, Tao Li   +4 more
doaj   +1 more source