混凝土水闸安全检测与耐久性评价

发布时间：2018-04-10 18:28

本文选题：混凝土水闸 + 测强曲线　；参考：《内蒙古农业大学》2014年硕士论文

【摘要】：我国是世界上建有水闸最多的国家之一,目前已建有大中小型水闸五万多座。这些水闸在防洪排涝、供水灌溉等方面发挥重要作用。然而,我国的水闸大多建于解放初期,由于当时的设计、施工技术较为落后,再加上水闸在使用过程中长期受到水流冲刷、冻融侵蚀等自然因素和人为因素的作用。这些水闸出现了不同程度的破坏,其混凝土构件病害较为严重,已严重影响到正常使用。因此,对水闸结构的检测与耐久性评价进行研究,建立一种科学合理的评价方法十分必要。本文对影响水闸混凝土构件的主要因素进行了系统分析,建立了适用于河套灌区水闸系统的耐久性评价模型,从而为该地区开展水工建筑物的检测、加固工作等工作提供参考依据。本文主要研究内容如下： (1)为了使混凝土无损检测技术能在水闸检测中更好的应用,本文依据《超声回弹综合法检测混凝土强度技术规程》(CECS02:2005),建立了该地区专用测强曲线,并通过拟合得到回归分析方程。 (2)以河套灌区长济渠第一节制闸的检测为例,集中介绍了在检测混凝土水闸过程中,各项检测技术的应用。 (3)采用层次分析法和模糊数学理论相结合建立了一种混凝土水闸耐久性的评估模型,并将该模型运用到长济渠第一节制闸耐久性评价中。 (4)采用人工神经网络评估法对长济渠第一节制闸进行评价。一方面介绍人工神经网络评估法的应用,另一方面验证建立的模糊层次评估模型的合理性。
[Abstract]:China is one of the countries with the largest number of sluices in the world. At present, there are more than 50,000 large, medium and small sluices.These sluices play an important role in flood prevention and drainage, water supply and irrigation.However, most of the sluices in our country were built in the early period of liberation. Because of the design at that time, the construction technology was relatively backward, and the sluice was affected by natural and human factors such as water flow erosion and freeze-thaw erosion for a long time.These sluices are damaged to different degrees, and their concrete members are seriously damaged, which has seriously affected their normal use.Therefore, it is necessary to study the detection and durability evaluation of sluice structure and establish a scientific and reasonable evaluation method.In this paper, the main factors affecting the concrete components of sluices are systematically analyzed, and the durability evaluation model suitable for the sluice system in Hetao Irrigation District is established, so as to carry out the inspection of hydraulic structures in this area.The reinforcement work provides the reference basis.The main contents of this paper are as follows:Taking the first control gate of Changji Canal in Hetao Irrigation District as an example, this paper mainly introduces the application of various detection techniques in the process of detecting concrete sluice.3) an evaluation model of concrete sluice durability is established by combining the analytic hierarchy process (AHP) with the fuzzy mathematics theory, and the model is applied to the durability evaluation of the first control sluice in Changji Canal.The artificial neural network evaluation method is used to evaluate the first control gate in Changji Canal.On the one hand, it introduces the application of artificial neural network evaluation method, on the other hand, it verifies the rationality of the fuzzy evaluation model.
【学位授予单位】：内蒙古农业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV66

【参考文献】