摇前隧道右线出口段洞身沉陷的原因分析和处理

Analysis and Disposal of Tunnel Body Subsidence in the Exit of Right Line Yaoqian Tunnel

在不良地质、浅埋地段隧道施工难度和风险极大,地表和洞身沉陷是施工中常见的一种事故。文章结合摇前隧道右线出口不良地质地段地表和洞身沉陷事故,对工程监控量测、应急处理、原因分析和整治处理方案及整治效果进行介绍,以期为类似事故的处理提供参考。

Construction difficulties and risk are enormous in bad geology and shallow sections, while surface and tunnel body subsidence is a kind of familiar accident in construction. According to the surface and tunnel body subsidence accident which happened in bad geological sections of the Yaoqian right tunnel exit, this paper introduces it＇s monitoring measurement, urgent disposal, cause analysis, renovating scheme and renovating effect. The research results could offer reference to the treatment of similar accidents.