关键词:
cable tunnel
stability
water pressure
水压力
电缆隧道
稳定性
cable tunnel
stability
water pressure
Language of Keywords: English
Chinese
摘要:
Stability of tunnel floor and lining in power tunnel is a key problem affecting tunnel safety. SAP84 structural analysis software is mainly used, to analyze the stability of the tunnel under water pressure. The results show that under the action of water pressure, the deformation shows the following features: the middle part of the side wall protrudes toward the tunnel, so that the side wall shows the arched type and the middle of the floor protrudes toward the tunnel; under the action of water pressure, the inner side of vault, the outer side of the vault at both ends of the pull, the side wall of the foot and the inside of the arch at both ends are pulled; shear force at both ends of the floor is maximum; With the increase of water pressure, the axial force of each section of the tunnel is gradually increased. The axial force is maximum at the boundary between the side wall and the invert, and the axial force decreases gradually from the bottom of the arch. The conclusion of the study is consistent with the deformation law of the tunnel in the actual project, which can provide some references for the tunnel reinforcement design. [ABSTRACT FROM AUTHOR]