“500”水库受水区西延干渠边坡土工膜防渗体抗滑稳定试验研究

发布时间：2018-11-23 06:18

【摘要】：近年来,土工膜防渗技术在我国的发展非常迅速,各类土工合成材料也逐渐应用于不同的水工建筑物,但在土工膜应用过程中仍然存在一些技术难题难以解决。现阶段,由于各方研究者对于土工膜、苯板等材料与土的界面摩擦特性研究所采用的试验仪器不尽相同,以此得到的相关数据以及成果也相应的存在不同,由此增加了边坡和坝坡稳定分析的难度,对苯板与土工膜,苯板与土的界面摩擦特性缺乏试验分析,而它们之间的界面作用很大程度上决定了护坡的稳定性。本文通过对具体工程实例--“500”水库受水区西延干渠近期工程的不同状况下砂砾石垫层料与渠床基础土料、苯板、复合土工膜、复合土工膜与苯板、砂浆体与苯板之间的摩擦角和凝聚力进行试验研究,同时根据“引额济克、济乌”工程已做的总干渠、南干渠的试验资料,分别把不同状态下聚乙烯光膜、两布一膜复合膜与砂浆之间的摩擦角和凝聚力作一总结,既为“500”水库受水区西延干渠近期工程的结构设计提供依据。同时也为渠道的边坡稳定分析提供参考。
[Abstract]:In recent years, geomembrane anti-seepage technology has developed very rapidly in China, and various geosynthetics have been gradually applied to different hydraulic structures. However, there are still some technical problems in the application of geomembrane. At present, due to the different experimental instruments used by researchers to study the interface friction characteristics of geomembrane, benzene plate and other materials and soil, the relevant data and results obtained are also different. Therefore, the stability analysis of slope and dam slope is more difficult, and the friction characteristics of benzene plate and geomembrane, benzene plate and soil are not analyzed experimentally, and the interfacial action between them determines the stability of slope protection to a great extent. In this paper, according to the concrete engineering example of "500" reservoir, the different conditions of the recent project of "500" reservoir in the west extension main canal, the gravel cushion material and the foundation soil material, the benzene plate, the composite geomembrane and the benzene plate are introduced. The friction angle and cohesion between the mortar and the benzene plate were tested and studied. According to the test data of the main canal and the south trunk canal already done in the project of "leading Ejek, Jiwu", the polyethylene light film in different states was separately used. The friction angle and cohesion between the composite film and mortar are summarized, which provides the basis for the structural design of the west extension canal in the "500" reservoir. At the same time, it also provides a reference for the slope stability analysis of the channel.
【学位授予单位】：新疆农业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV672;TV49

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