泵站地震反应研究和流固耦合分析方法

发布时间：2018-05-27 17:19

本文选题：泵站 + 流固耦合　；参考：《河北工程大学》2014年硕士论文

【摘要】：我国南方大部分地区常年遭受洪涝自然灾害的主要原因是因为地区地势低洼，汛期江水位升高，江水上滩造成大量的淹没，形成洪泛区，且区域内产生的涝水不能及时排放，因此需要沿江修建防洪堤才可以抵御洪水的侵入，与此同时配套修建排涝泵站及其它排涝设施及时排放涝水，才能彻底解决区域水患。南面沟泵站位于海南省海口市新坡镇南面沟出口处，承担区域涝水集中抽排的任务，南面沟泵站位于新坡镇南部，处于地震不利的地段，根据2001年《中国地震动参数区划图》的划分，工程场地地震动峰值加速度为0.30g，相当于地震基本烈度为8度，鉴于泵站的重要性，要确保泵站的安全运行和泵站在地震作用下的稳定性，由于地震作用而产生的动水压力成为重要因素之一，因此需要深入研究结构和动水压力之间的相互反应。本文的内容有以下几点： 1、本文讲述了泵站的国内外发展史、研究课题的意义和目的以及介绍了地震反应分析的现状。 2、讲述了泵站抗震的有限元理论分析的两种方法：一种是反应谱法，另一种是时程分析法，并对两种方法进行了比较，另外还介绍了土与结构之间相互作用的理论与研究方法。 3、提出了流固耦合的有限元理论分析与方法，对几种方法的理论分别作了简单介绍。 4、结合南面沟泵站工程的实例，，对结构的抗震安全度进行综合的分析评价，得出的结论为以后的工程设计提供了一些参考价值。
[Abstract]:The main reason why most areas in the south of China suffer from the perennial flood and waterlogging natural disasters is that the area is low lying, the water level of the river rises in the flood season, the river beach causes a large amount of inundation, which forms the floodplain area, and the flood water produced in the area cannot be discharged in time. Therefore, it is necessary to build flood control embankment along the river to resist the flood invasion, and at the same time to build the drainage pump station and other drainage facilities to discharge the flood water in time, so that the regional flood hazard can be solved thoroughly. The south side ditch pumping station is located at the south side ditch exit of Xinpo Town, Haikou City, Hainan Province. It undertakes the task of centralized drainage of waterlogged water in the region. The south side ditch pump station is located in the south of Xinpo Town, where the earthquake is unfavorable. According to the division of the "China ground motion parameter zoning map" in 2001, the peak acceleration of the ground motion of the engineering site is 0.30g, which is equivalent to the basic earthquake intensity of 8 degrees. In view of the importance of the pumping station, In order to ensure the safe operation of pumping station and the stability of pumping station under earthquake, the dynamic water pressure caused by earthquake is one of the important factors, so it is necessary to deeply study the interaction between structure and dynamic water pressure. The contents of this article are as follows: 1. This paper describes the history of development of pumping stations at home and abroad, the significance and purpose of the research and the present situation of seismic response analysis. 2. Two methods of finite element theory analysis of earthquake resistance of pumping stations are described: one is the response spectrum method, the other is the time-history analysis method, and the two methods are compared. In addition, the theory and research methods of the interaction between soil and structure are introduced. 3. The finite element analysis and method of fluid-solid coupling are presented, and the theories of several methods are briefly introduced. 4. Combined with the example of Nanmianggou pumping station project, the seismic safety degree of the structure is analyzed and evaluated synthetically, and the conclusion provides some reference value for the future engineering design.
【学位授予单位】：河北工程大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV675;TV312

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