华岩隧道穿越中梁山南矿巷道加固分析

Reinforcement Analysis of the Hua Yan Tunnel Section Crossing Nankuang Tunnel of Zhongliang Mountain

由于华岩隧道施工开挖和运营将影响已有巷道围岩应力分布,采用三维有限元程序模拟计算分析围岩的位移场、应力场及塑性区分布情况,并提前对已有巷道进行钢筋混凝土衬砌加固。通过巷道加固与改造,最大程度减小巷道围岩变形,保证现有巷道的正常使用及上方华岩隧道开挖及运营后的正常使用要求。

Since the construction, excavation and operation of the Huayan tunnel will affect the stress distribution of the surrounding rocks of the existing tunnels, this paper adopts three-dimensional finite element programs to simulate, calculate and analyze the distribution of the displacement field, stress field and plastic zone, and reinforces the existing tunnels with reinforced concrete lining in advance. Through reinforcement and reconstruction, the deformation of the tunnels＇ surrounding rocks is minimized, ensuring the normal use of the existing tunnels and the smoothness of the Hua Yan tunnel excavation and operation.