市政排水隧道被钻机侵入破损后的修复方法

Repair Method for Municipal Drainage Tunnel Invaded and Damaged by Drilling Rig

市政排水隧道为关系国计民生的百年工程,结构安全尤其重要。主体结构因某些原因遭到局部破坏后的修复工作,必须通过科学论证、精细施工才能确保修复后的结构满足使用需求。该文结合斯里兰卡排水隧道被地面钻孔非法侵入后的现状,进行了破损隧道位置的受力分析。综合考虑隧道结构安全和施工可行性等因素,最终确定隧道修复方法,为今后类似施工提供一定借鉴和帮助作用。

Municipal drainage tunnel is a century old project related to the national economy and the people’s livelihood,and structural safety is particularly important.After the main structure is partially damaged for some reasons,the repair work must be carried out through scientific demonstration and fine construction to ensure that the repaired structure can meet the needs of use.Combined with the current situation of drainage tunnels illegally invaded by ground drilling in Sri Lanka,the stress analysis of damaged tunnel position is carried out in this paper.Considering the factors such as tunnel structure safety and construction feasibility,the tunnel repair method is finally determined to provide certain reference and help for similar construction in the future.