摘要
由于高压导流隧道所处的复杂地质条件和高负荷运行环境,混凝土衬砌在施工过程中面临诸多技术难题,特别是如何有效控制衬砌结构的动力响应,避免外部荷载对结构稳定性的影响,成为了关键问题。通过力学响应,深入分析了高压导流隧道混凝土衬砌结构在地震荷载外部作用下的动态特性;采用有限元法对其进行数值模拟,评估了衬砌结构在复杂荷载下的响应行为;结合实际工程,提出了优化混凝土衬砌施工的技术措施。
Due to the complex geological conditions and high load operating environment of high-pressure diversion tunnel,concrete lining faces many technical problems in the construction process,especially how to effectively control the dynamic response of the lining structure and avoid the influence of external load on the stability of the structure,which has become a key issue.Therefore,through the mechanical response,this study deeply analyzes the dynamic characteristics of the concrete lining structure of the high-pressure diversion tunnel under the external action of earthquake load.The finite element method is used to simulate the structure numerically,and the response behavior of the lining structure under complex load is evaluated.Combining with the actual project,the technical measures to optimize the construction of concrete lining are put forward.
作者
马淇霖
MA Qiin(China Water Resources and Hydropower Eighth Engineering Bureau Co.,Ltd.,Changsha 410000,China)
关键词
抽水蓄能电站
导流洞
混凝土衬砌
有限元法
施工技术
pumped storage power station
diversion tunnel
concrete lining
finite element method
construction technique
