A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Influence of Construction Process of Double-Line Shield Tunnel Crossing Frame Structure on Ground Settlement
https://orcid.org/0000-0001-6319-9684
Abstract This paper simulates the construction process of double-line shield tunnels crossing frame structure by using the three-dimensional finite element software MIDAS/GTS. The location and construction sequence of double-line shield tunnels were varied to investigate the influence on the ground settlement. The results show: (1) The transverse deformation curve of the ground caused by the construction of the double-line shield tunnel is symmetrical about the centerline of the tunnel. The existence of the frame structure affects ground settlement. It reflects the constraining effect of the frame structure on the formation. When the shield tunnel is excavated near the center of the frame structure, the frame structure has the greatest influence on the ground settlement. (2) The ground settlement of the center point of the strip foundation is selected as the research object. With the continuous excavation of the shield tunnel, the ground settlement curve has a slight increase. The curve drops when the shield is excavated to the frame structure. The curve levels off when the shield is excavated beyond the frame structure. It is no longer decreasing. (3) The difference in the relative position of the frame structure and the shield tunnel has a certain influence on the ground settlement. When the tunnel under-passing the frame structure, the ground settlement is minimal. (4) When the double-line shield tunnel crossing the frame structure from the side, the ground settlement caused by the reverse synchronous excavation process of the left and right lines is minimal at the center of the frame structure.
Influence of Construction Process of Double-Line Shield Tunnel Crossing Frame Structure on Ground Settlement
https://orcid.org/0000-0001-6319-9684
Abstract This paper simulates the construction process of double-line shield tunnels crossing frame structure by using the three-dimensional finite element software MIDAS/GTS. The location and construction sequence of double-line shield tunnels were varied to investigate the influence on the ground settlement. The results show: (1) The transverse deformation curve of the ground caused by the construction of the double-line shield tunnel is symmetrical about the centerline of the tunnel. The existence of the frame structure affects ground settlement. It reflects the constraining effect of the frame structure on the formation. When the shield tunnel is excavated near the center of the frame structure, the frame structure has the greatest influence on the ground settlement. (2) The ground settlement of the center point of the strip foundation is selected as the research object. With the continuous excavation of the shield tunnel, the ground settlement curve has a slight increase. The curve drops when the shield is excavated to the frame structure. The curve levels off when the shield is excavated beyond the frame structure. It is no longer decreasing. (3) The difference in the relative position of the frame structure and the shield tunnel has a certain influence on the ground settlement. When the tunnel under-passing the frame structure, the ground settlement is minimal. (4) When the double-line shield tunnel crossing the frame structure from the side, the ground settlement caused by the reverse synchronous excavation process of the left and right lines is minimal at the center of the frame structure.
Influence of Construction Process of Double-Line Shield Tunnel Crossing Frame Structure on Ground Settlement
https://orcid.org/0000-0001-6319-9684
Abstract This paper simulates the construction process of double-line shield tunnels crossing frame structure by using the three-dimensional finite element software MIDAS/GTS. The location and construction sequence of double-line shield tunnels were varied to investigate the influence on the ground settlement. The results show: (1) The transverse deformation curve of the ground caused by the construction of the double-line shield tunnel is symmetrical about the centerline of the tunnel. The existence of the frame structure affects ground settlement. It reflects the constraining effect of the frame structure on the formation. When the shield tunnel is excavated near the center of the frame structure, the frame structure has the greatest influence on the ground settlement. (2) The ground settlement of the center point of the strip foundation is selected as the research object. With the continuous excavation of the shield tunnel, the ground settlement curve has a slight increase. The curve drops when the shield is excavated to the frame structure. The curve levels off when the shield is excavated beyond the frame structure. It is no longer decreasing. (3) The difference in the relative position of the frame structure and the shield tunnel has a certain influence on the ground settlement. When the tunnel under-passing the frame structure, the ground settlement is minimal. (4) When the double-line shield tunnel crossing the frame structure from the side, the ground settlement caused by the reverse synchronous excavation process of the left and right lines is minimal at the center of the frame structure.
Influence of Construction Process of Double-Line Shield Tunnel Crossing Frame Structure on Ground Settlement
Yang, Hui (author) / Shi, Hongtao (author) / Jiang, Xueliang (author) / Liu, Chan (author)
2019
Article (Journal)
Electronic Resource
English
BKL:
57.00$jBergbau: Allgemeines
/
38.58
Geomechanik
/
57.00
Bergbau: Allgemeines
/
56.20
Ingenieurgeologie, Bodenmechanik
/
38.58$jGeomechanik
/
56.20$jIngenieurgeologie$jBodenmechanik
Effect Analysis of Double-Line Parallel Shield Tunnel Crossing Frame Structure Building Based on GTS
| British Library Conference Proceedings | 2011
Effect Analysis of Double-Line Parallel Shield Tunnel Crossing Frame Structure Building Based on GTS
| Trans Tech Publications | 2011