摘要
统计分析了锦屏二级水电站引水隧洞软岩段变形量，研究了超深埋大断面隧洞软弱围岩变形特征及预留变形量合理的取值范围。通过数值模拟、解析计算和现场实测数据统计分析，锦屏引水隧洞软岩段预留变形量范围可取40～60cm。研究结果可供类似工程施工参考。
The deformation of the soft rock section of the diversion tunnel for Jinping II Hydropower Station is statistically ana- lyzed herein, and then the deformation characteristics and the reasonable value range of the reserved deformation for the soft sur- rounding rock of the super deep-lying and large cross-section tunnel are studied a well. Through the numerical simulation, analyt- ical calculation and the statistical analysis on the in situ measured data, the value range of 40 -60 cm for the reserved deforma- tion can be taken for the soft rock section of the diversion tunnel for Jinping II Hydropower Station. The study result can provide reference for the similar project concerned.
出处
《水利水电技术》
CSCD
北大核心
2013年第10期52-56,61,共6页
Water Resources and Hydropower Engineering
基金
中央高校基本科研业务专项基金(SWJTU11ZT33)
教育部创新团队发展计划(IRT0955)
关键词
大断面隧洞
软弱围岩
变性特征
预留变形量
large cross-section tunnel
soft surrounding rock
deformation characteristics
reserved deformation
