带斜背板扶壁式钢筋混凝土挡土墙受力的有限元分析-土木工程专业论文.docxVIP

中文摘要 中文摘要 重庆大学硕 重庆大学硕士学位论文 I I PAGE PAGE VI 摘 要 挡土墙在公路、铁路、水利以及工业与民用建筑中的应用十分广泛，同时作 为支承路基填土或山坡填土，防止填土或土体失去稳定性的一种构筑物，它还广 泛的应用于整治崩塌、滑坡等病害中，在我国这样的一个多山国家，挡土墙的应 用非常广泛，加强挡土墙的相关研究具有良好的学术及工程意义。 本文首先简单阐述了现有的各种挡土墙的类型、特点、适用范围以及优缺点， 进而提出一种新型挡土墙，即带斜背板的扶壁式钢筋混凝土挡土墙，然后介绍了 有限元法理论及大型有限元软件 ANSYS，进而利用 ANSYS 有限元分析软件对斜 背板与面板等高型、斜背板低于面板型以及斜背板低于面板且带水平延伸板型这 三种形式的带斜背板的扶壁式钢筋混凝土挡土墙进行了分析。对于斜背板与面板 等高型，主要探究不同水平底板长度和斜背板角度对挡土墙及土体变形与受力的 影响；斜背板低于面板型，主要探究不同斜背板高度和斜背板角度对挡土墙及土 体变形与受力的影响；斜背板低于面板且带水平延伸板型主要探究不同斜背板高 度和延伸平板长度对挡土墙及土体变形与受力的影响，同时还分析了墙顶荷载对 挡土墙及土体变形与受力的影响。通过分析，得出了不同结构形式的新型挡土墙 的位移和受力与水平底板长度、斜背板高度、斜背板角度以及水平延伸板长度之 间的关系，相关结论可为工程应用提供一定的参考。 关键词：带斜背板扶壁式挡土墙，钢筋混凝土挡土墙，有限元分析，挡土墙截面 形式，挡土墙及土体的受力与变形 英文摘要 英文摘要 重庆大学硕 重庆大学硕士学位论文 III III PAGE PAGE IV ABSTRACT Retaining wall is widely used not only in road building but also industrial and civil construction, meanwhile, it is used as a structure to support fillings or soils with the purpose to prevent deformation instability of filling or soil. China is a mountainous country, retaining wall is becoming more broadly applied, strengthen of retaining wall’s research has a good academic and engineering meaning. Firstly, types, characteristics, suitable cope, advantages and disadvantages are briefly discussed, and also reinforced concrete buttressed retaining wall as a new type which with inclined plate is putted forward in this paper. Secondly, theories on finite element methods and ANSYS which is one kind of finite element software are introduced. Thirdly, three types of reinforced concrete buttressed retaining walls such as height of oblique backplane equals to panel one, height of oblique backplane below panel one, height of oblique backplane below panel one with horizontal plate are discussed by using ANSYS. Finally, for height of oblique backplane equals to panel type, effects on retaining wall and soil body caused by different lengths of horizontal plate and angles of oblique backplane are studied. For height of oblique backplane