信州枢纽工程建设与原型动力检测研究

发布时间：2018-02-22 09:28

本文关键词： 水闸设计施工安全检测　出处：《南昌大学》2014年硕士论文　论文类型：学位论文

【摘要】：水闸是利用闸门挡水和泄水的中低水头水工建筑物。水闸能够雍高水位为城市供水，并且具有防洪排涝的作用，合理的设计水闸能够形成水景观效应，提高城市品位。本文以上饶信州枢纽为工程背景，研究了水闸枢纽工程的设计、施工以及服役期间定时安全检测方面的内容。主要做了以下工作：（1）工程布置及主要建筑物设计。首先研究了坝址和坝型的选择，在水文与工程地质的基础上，综合考虑枢纽布置、库区浸没、景观效果以及工程投资效益等因素的影响，，选定坝址以及坝型；然后通过对工程不同布置方案的优劣性对比，工程布置定为：右岸引水式电站+主河槽17孔深孔闸+左岸滩地20孔浅孔闸。最后研究了工程的泄流能力计算，闸墩顶高程确定，闸孔、消能防冲、电站厂房等主要建筑物的设计。（2）工程施工。首先研究了信州枢纽工程的施工进度管理，包括临时房建，风、水、电、通讯系统，混凝土生产及运输系统和施工交通的总体布置；然后研究了地基开挖与处理、护坦及消力池、闸室、交通桥等主要项目的施工情况；最后研究了工程主要施工项目（包括导流、闸坝、坝肩及护岸、防洪墙混凝土浇筑等工程）的施工方案。（3）闸墩结构动力检测。为确保工程的安全运行，对信州枢纽工程闸墩结构进行了振动测试。通过对原型观测信号处理，识别了结构振动的4阶模态参数，并且建立了所测闸墩结构的有限元模型，进行有限元分析对比。最后对服役期间的水闸进行安全评定，结果表明：结构最大振幅、双倍幅值和均方差均满足要求；流激振动响应对人体的危害方面，该工程位于Meister感觉曲线的“相当的感觉到”区域。
[Abstract]:The sluice gate is a low and middle head hydraulic structure which uses gate to keep water and drain water. The sluice can supply water for the city with high water level and has the function of flood control and drainage. Reasonable design of sluice gate can form water landscape effect. Based on the background of Shangrao Xinzhou Project, this paper studies the design, construction and timing safety detection of sluice junction. The main work is as follows:. First, the selection of dam site and dam type is studied. On the basis of hydrology and engineering geology, the influence of key layout, reservoir area immersion, landscape effect and project investment benefit are comprehensively considered. The site and type of the dam are selected, and the advantages and disadvantages of different layout schemes of the project are compared. The engineering arrangement is as follows: the main channel 17 hole deep hole sluice on the left bank of the right bank diversion power station, the shallow 20 hole sluice on the left bank of the beach. Finally, the calculation of the discharge capacity of the project, the determination of the height of the pier top, the sluice hole, the energy dissipation and scour prevention are studied. Design of main buildings such as power plant. First, the construction schedule management of Xinzhou Hub Project, including temporary house construction, wind, water, electricity, communication system, concrete production and transportation system, and construction traffic layout are studied, and then the foundation excavation and treatment are studied. Finally, the construction scheme of the main construction projects (including diversion, gate dam, dam abutment and bank protection, concrete pouring of flood control wall, etc.) is studied. In order to ensure the safe operation of the project, the vibration test of the pier structure of Xinzhou Hub Project is carried out. By processing the prototype observation signal, the fourth order modal parameters of the structure vibration are identified. The finite element model of the measured pier structure is established and compared with the finite element analysis. Finally, the safety assessment of the sluice during service is carried out. The results show that the maximum amplitude, double amplitude and mean square deviation of the structure meet the requirements; The engineering is located in the "equivalent sense" region of the Meister sensory curve for the hazard of fluid-induced vibration response to human body.
【学位授予单位】：南昌大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV632;TV66

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