玉瓦水电站引水隧洞衬砌结构计算优化设计  

Optimization Design of Concrete Lining Structural Calculation for Headrace Tunnel of Yuwa Hydropower Project

作　　者：祖威 ZU Wei(PowerChina Chengdu Engineering Corporation Limited,Chengdu Sichuan 610072)

机构地区：[1]中国电建集团成都勘测设计研究院有限公司,四川成都610072

出　　处：《四川水力发电》2023年第6期112-115,共4页Sichuan Hydropower

摘　　要：玉瓦水电站为成都院EPC总承包项目之一,可研阶段概算投资水平总体偏高,项目经过多次技术方案优化后,顺利实现了开工建设工作。技施阶段,为满足控制投资要求,结合控制地下工程不确定性风险分析,对长引水隧洞开挖和衬砌支护参数进行优化设计是水电站精细化设计方法之一。笔者利用结构力学法和有限单元法对引水隧洞衬砌结构进行配筋计算,通过对比分析,达到优化钢筋工程量,降低工程投资目的。此文总结了引水隧洞衬砌结构优化的部分经验,可对其他类似工程起到设计借鉴参考目的。Yuwa Hydropower Station is one of the projects adopting the EPC contract mode type in PowerChina Chengdu Engineering Corporation Limited.The project estimated investment of Yuwa Hydropower Project is much higher in the feasibility study stage.After optimization of technical proposals was done for many times,the project was successfully in construction on time.In order to control the project cost,combined with the risk analysis of uncertainty in underground engineering,the optimization of design parameters of excavation and concrete lining for long headrace tunnel is one of the fine design methods of hydropower station.This paper introduces the reinforcement calculation of concrete lining design for headrace tunnel with the structural mechanics and finite element method.Though comparative analysis,optimizing reinforcement quantity and reducing project investment are achieved.This paper summarizes some experience of optimizing the lining structure in headrace tunnel,which can be used as reference for other similar projects.

关 键 词：引水隧洞 有限单元法 衬砌结构计算 优化工程量 

分 类 号：TV222[水利工程—水工结构工程] TV672.1