摘要
现行水工隧洞结构设计规范有许多不合理之处。笔者做了结构试验,采用水压力直接加载,获得了内水外渗后钢筋应力、缝宽随水荷载的变化规律;进行渗流-应力耦合有限元数值模拟,分析衬砌、围岩、固结灌浆区的受力特性,并对索风营水电站隧洞的结构监测成果进行分析;提出水工隧洞衬砌按构造配筋设计的思路,建议尽快修订现行规范。
There are many irrationalities in the current structural design specifications of hydraulic tunnel. In this work,structural test is conducted by direct loading of water pressure inside the tunnels,and the variations of steel stress and crack width with pressure load under the influence of seepage are measured. Meanwhile, numerical simulation of the same conditions is carried out. With the test data,simulation data and field monitoring data of Suofengying tunnel,the performance of lining,surrounding rock mass and consolidation grouting zone are analyzed. This paper puts forward an idea of constructional reinforcement in structural design of hydraulic tunnels,and proposes that the current specification is revised as soon as possible.
出处
《水力发电学报》
EI
CSCD
北大核心
2010年第2期190-196,共7页
Journal of Hydroelectric Engineering
关键词
水工结构:受力特性
结构模型试验
水工隧洞
数值模拟
内水外渗
原型监测
hydraulic structure
stress characteristics
structural model test
hydraulic tunnel
numerical simulation
inner water exosmosis
prototype observation
