摘要
软岩地层输水隧洞施工过程中,大变形问题极为突出,会严重影响施工安全和进展。文章以观音阁输水工程为例,利用FLAC3D模型数值对软岩严重挤压变形段的最佳让压支护参数进行研究,根据研究结果,建议让压点和起始让压量选择10cm+10cm。
The large deformation problem is very prominent during the construction of convey tunnel in soft rock stratum,which seriously affects the construction safety and progress.Guanyinge Water Conveyance Project is adopted as an example in the paper.FLAC3D model value is utilized to study the optimal compressive support parameters in the severely extrusion deformation section of soft rock.It is suggested to select 10cm+10cm as the pressure relief point and the initial pressure relief amount according to the research results.
作者
刘韬
LIU Tao(Liaoning Runzhong Water Supply Co.,Ltd.,Shenyang 110166,China)
出处
《中国水能及电气化》
2019年第8期44-48,共5页
China Water Power & Electrification
关键词
观音阁输水工程
输水隧洞
让压支护
参数
Guanyinge Water Conveyance Project
convey tunnel
compressive support
parameter
