水力发电2018，Vol.44Issue(1)：59-63,5.
高地温引水隧洞衬砌结构温度应力现场监测与数值模拟
On-site Monitoring and Numerical Simulation of Lining Thermal Stress of High Ground Temperature Diversion Tunnel
摘要
Abstract
In order to study the stress characteristics of supporting structure of a diversion tunnel under high ground temperature environment,the finite element method is used to demonstrate the results of on-site monitoring data.The results show that:(a) during construction period,the maximum tensile and compressive stress are small due to temperature difference,and the maximum tensile stress and compressive stress are about 0.67 MPa and 0.45 MPa respectively;(b) during operation period,the tensile stress appears in full section due to lower water temperature and the maximum tensile stress is about 3.5 MPa;(c) during overhaul period,the tensile stress is gradually transformed into compressive stress as the rise of tunnel temperature and the maximum compressive stress is around 0.35 MPa.关键词
隧洞衬砌/高地温/受力特性/现场监测/数值模拟Key words
tunnel lining/high ground temperature/stress characteristic/on-site monitoring/numerical simulation分类
建筑与水利引用本文复制引用
王排排,姜海波..高地温引水隧洞衬砌结构温度应力现场监测与数值模拟[J].水力发电,2018,44(1):59-63,5.基金项目
国家自然科学基金项目(51769031) （51769031）
石河子大学杰出青年科技人才培育计划(2015ZRKXJQ06) （2015ZRKXJQ06）
