Search
Search Results
-
Stability Analysis of 3D Tunnel Face of Shallow Rectangular Shield Tunnel
In recent years, an increasing number of rectangular excavation sections have appeared in pipe-jacking shield tunnel projects. In previous studies,...
-
Effect of cutterhead configuration on tunnel face stability during shield machine maintenance outages
Owing to long-distance advancement or obstacles, shield tunneling machines are typically shut down for maintenance. Engineering safety during...
-
Instability Prediction Model of the Shield Tunnel Face Based on the Normal Cloud-PSM
Considering the characteristics of fuzziness and randomness of shield tunnel face instability, normal cloud theory is introduced to establish an...
-
Stability Analysis of 3D Deep Tunnel Face under Steady Seepage Flow Condition
The instabilities of tunnel face may occur while shields advance through the rivers or region rich in water. It is of significance to attach the...
-
Seismic Stability of 3D Tunnel Face considering Tensile Strength Cut-Off
Earthquakes can have a very adverse effect on tunnel excavation. The Mohr-Coulomb failure criterion is modified by introducing tensile strength...
-
Analysis of working face stability during obstruction removal from a box tunnel machine
Recently, increasing numbers of box tunnels have been built in urban areas due to their high space utilization. Rectangular boring machines are...
-
Evaluation of Tunnel Face Stability Subjected to Seismic Load Based on the Non-associated Flow Rule
Reasonable determination of the stability of the tunnel face under complex conditions is necessary for safe construction. This paper focuses on the...
-
Three-Dimensional Face Stability Assessments of Seismic Tunnels in Weak Rock Masses
The face stability assessments of seismic tunnels have been complicated and crucial problems. To solve this issue, an advanced three-dimensional (3D)...
-
Stability of Tunnel Face Reinforced by Bolts under Seepage Flow Conditions
This paper proposed a calculation method for bolts reinforcement of tunnel face under the seepage condition. The existence of seepage in tunnel...
-
Limit equilibrium models for passive failure of a large-diameter shield tunnel face in reinforced soft clay
For the excavation of a shallow tunnel in soft soil, the controllable range of the support pressure is narrow due to the small area of overburdened...
-
Three-Dimensional Stability of Cyclical Footage Area in Tunnel Face
Based on the theory of limit and the unified strength theory, the three-dimensional failure pattern and the corresponding velocity field on the...
-
A Case Study of Tunnel Stability in Quaternary Deposits Using Pipe-Roof Supports
In numerical modeling, boundary conditions play a vital role for stability analysis of a tunnel. The top boundary is kept free to simulate vertical...
-
A soft computing approach to tunnel face stability in a probabilistic framework
Tunnel face is important for shallow tunnels to avoid collapses. In this study, tunnel face stability is studied with soft computing techniques. A...
-
Study on the Stability of Tunnel in Weak Surrounding Rock Considering Initial Support Parameters and Excavation Method
The deformation control of surrounding rock is a crucial aspect in the design and construction of tunnels that traverse weak geological formations....
-
Analysis and prediction of the river levee settlement derived from shield tunneling considering the excavation face stability
The river levee settlement derived from shield tunnel excavation face instability is an anticipated safety issue. Serious engineering safety hazards...
-
Mechanism of water inrush from the tunnel face induced by fault and its application
The limit equilibrium method, slice method and elastic mechanics method are adopted to investigate the mechanism of water inrush from the tunnel face...
-
Analysis and Modeling of Longitudinal Deformation Profiles Considering the Reinforcement Effect of Tunnel Face in Weak Rocks
Convergence-confinement method (CCM) has become a common method for tunnel design due to its simplicity and practicality. The ground reaction curve...
-
Stability Prediction of Surrounding Rock in Tunnel Crossing Fault Zone Based on Cusp Catastrophe Theory
To solve the practical engineering problem of cusp catastrophe theory in the prediction of surrounding rock stability. This paper establishes the...
-
Reliability Analysis of Seismic Stability of Shield Tunnel Face under Multiple Correlated Failure Modes
In this paper, the seismic stability of shield tunnel face under multiple correlated failure modes is studied by combining the upper bound theorem of...
-
Analysis of tunnel face stability with advanced pipes support
To keep the tunnel face stable is very important for tunnel construction. In this paper, the tunnel face stability under the advanced pipe was...