Analysis of face stability during excavation of Double-O

Analysis of face stability during excavation of Double-O

Zixin Zhang's research works | Tongji University, Shanghai

The stability analysis of rock blocks on man-made excavation faces (e.g. tunnel, cavern, and slope) subject to seismic loads is an important issue in the field of rock engineering.

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Theme 1: Analysis and numerical modeling of deep excavations Optimization design of composite soil-nailing in loess excavation 133 G.M. Chang Three-dimensional finite element analysis of diaphragm walls for top-down construction 141 J Hsi, H. Zhang & 71 Kokubun Numerical evaluation of dewatering effect on deep excavation in soft clay 147 L. Li

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Cohesionless soil | Article about cohesionless soil by The

Analysis of face stability during excavation of Double-O-Tube shield tunnel Duncan, "Elasto-plastic stress-strain theory for cohesionless soil with curved yield surfaces," International Journal of Solids and Structures, vol.

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Tunnelling and Underground Space Technology | Vol 119

Face stability analysis of shallow shield tunneling in layered ground under seepage flow select article Surface settlement in saturated loess stratum during shield construction: Numerical modeling and sensitivity analysis Effects of construction sequence of double basement excavations on an existing floating pile. Jiangwei Shi, Jiaqi

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Zixin Zhang's research works | Tongji University, Shanghai

The stability analysis of rock blocks on man-made excavation faces (e.g. tunnel, cavern, and slope) subject to seismic loads is an important issue in the field of rock engineering.

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Modern Tunneling Science and Technology | T. Adachi, K

Oct 08, 2020 · By Takeshi Tamura. This book introduces the latest frontier of the tunneling science and technology in Japan. It contains a collection of 175 papers presented at the International Symposium on Modern Tunneling Science and Technology held in Kyoto, 2001. Planning of Construction of Metro Station below the heavily built up area in Delhi.

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Velocity discontinuity | Article about velocity

In the numerical analysis literature, a velocity discontinuity point is called a breaking point [8], while in variational calculus (and here) the name corner point is used [5]. Analysis of face stability during excavation of Double-O-Tube shield tunnel.

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Analysis of Stratum Settlement Laws Caused by the

Sep 26, 2020 · Many tunnels with large spans and small spacing have been constructed due to the rapid development and construction of China's expressways. The stratum settlement caused by the construction of these tunnels in shallow sections is large and difficult to control, and ensuring stratum stability is a key issue in the construction of expressway tunnels. According …

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Study of Stability against Up-Sliding of High Arch Dam

Aimed at stability against up-sliding that the dam engineers have concerned closely, in this paper combining two models of arch dam, the analysis of 3-D finite element method has been carried out about shear of contact face between foundation and high arch dam, we concluded probability of stability against up-sliding along contact face between foundation and high double …

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Research Article Analysis of Face Stability during

Research Article Analysis of Face Stability during Excavation of . By Double-o-tube Shield Tunnel. Abstract. which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. This paper focuses on the face stability analysis of Double-O-Tube shield tunnel. This kind of analysis is

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Analysis of Face Stability during Excavation of Double-O

It can be seen from Figure 6 that the whole load-displacement curve can also be divided into three stages: in the first stage, with the decrease of support pressure, the displacement of the excavation face increases slowly; in the second stage, the displacement of the excavation face increases faster; at this time, the support pressure of the excavation face is close to the limit …

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Analysis of face stability during excavation of Double-O

This paper focuses on the face stability analysis of Double-O-Tube shield tunnel. This kind of analysis is significant to ensure the safety of workers …

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1. Introduction

Therefore, the seismic stability of tunnels should be investigated [1]. The stability of tunnels has always been a problematic aspect of tunnel design. Lee et al. [ 2 ] used tunnel stability limit analysis; however, limit analysis usually first supposes surface rupture and considers the stress state of a rock under plane failure.

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Tunnel face stability and ground settlement in pressurized

This paper focuses on the face stability analysis of Double-O-Tube shield tunnel. This kind of analysis is significant to ensure the safety of workers and reduce the influence on the surrounding

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Tunnel face stability and ground settlement in pressurized

Analysis of face stability during excavation of Double-O-Tube shield tunnel Duncan, "Elasto-plastic stress-strain theory for cohesionless soil with curved yield surfaces," International Journal of Solids and Structures, vol. A mathematical approach …

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Numerical analysis of surface subsidence in asymmetric

Feb 01, 2017 · A number of investigations regarding stability analysis of single tunnels are reported (Hoek, 2001, Panji et al., 2011, Sharifzadeh et al., 2013, Goel, 2014, Lisjak et al., 2015). Construction of double or multiple tunnels and double-deck tunnel practice has …

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Study on Stability of Shield Tunnel Excavation Face in

Up to12%cash back · Apr 25, 2014 · An analysis of the stability of large-diameter circular tunnels and ground settlement during tunnelling by a pressurized shield was presented. An innovative three-dimensional translational multi-block failure mechanism was proposed to determine the face support pressure of large-shield tunnelling. Compared with the currently …

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Fhwa if 05 023 (Tunnels Design Guidelines) | Tunnel

Jul 19, 2016 · A construction contingency for cost growth during construction; ./ A design contingency based on Conventional TBM Stand-up time important tor face stability and Shield the need for The following steps should be used in performing a continuum analysis of tunnel and shaft excavations: 1. Identify the need for and

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Modern Tunneling Science and Technology | T. Adachi, K

Oct 08, 2020 · By Takeshi Tamura. This book introduces the latest frontier of the tunneling science and technology in Japan. It contains a collection of 175 papers presented at the International Symposium on Modern Tunneling Science and Technology held in Kyoto, 2001. Planning of Construction of Metro Station below the heavily built up area in Delhi.

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Determination of Deformation Mechanism and Countermeasures

Deformation control and stability analysis are very important for tunnel construction. Large deformations of the constructed primary support accompanied by lining cracking and spalling occurred in the Dongxishan Tunnel located in Chaozhou City, northeastern Guangdong Province, China, posing a serious damage to the tunnel safety.

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