某高速公路边坡支护设计

TOC \o "1-2" \h \z \u 摘要 PAGEREF _Toc233482689 \h IIAbstract PAGEREF _Toc233482690 \h IV1 绪论 PAGE

................................................................................................................................................................................. II 摘要 ABSTRACT .................................................................................................................................................................. IV ............................................................................................................................................................................. 1 1绪论 ......................................................................................................................................................... 1 1.1 问题的提出 ................................................................................................................................. 1 1.2 国内外支护结构发展过程 ................................................................................................................................. 2 1.3 几种常见支护手段的分析 ................................................................................................................. 3 1.4 高速公路边坡稳定性分析发展趋势 ..................................................................................................................................................................... 4 2工程简介 ............................................................................................................................................................. 4 2.1 工程概况 ............................................................................................................................................................. 4 2.2 自然地理 ..................................................................................................................................................... 4 2.3 工程地质条件 ..................................................................................................................................................................... 6 3设计思路 ............................................................................................................................................. 6 3.1 主要设计方案思路 ..................................................................................................................................................... 6 3.2 设计依据资料 .............................................................................................................................................................. 7 3.3设计原则 .............................................................................................................................................................. 7 3.4设计参数 ..................................................................................................................................................... 7 4滑坡体稳定性计算 .............................................................................................................................................. 7 4.1滑坡推力计算方法 ..................................................................................................................................................... 9 4.2 滑坡推力计算 ........................................................................................................................ 19 5YK231+120断面处锚索设计与计算 ........................................................................................................................................ 19 5.1确定锚索钢绞线规格 .................................................................................................................... 19 5.2锚索设置位置及设计倾角的确定 ............................................................................................................................................... 20 5.4 锚固体设计计算 ........................................................................................................................ 22 6YK231+120断面处格构设计与计算 ............................................................................................................................................... 22 6.1 格构梁设计步骤 ....................................................................................................... 30 6.3 利用静定分析法计算竖向格构梁的内力 ........................................................................................................................................ 35 7YK231+309截面锚索计算 ........................................................................................................................................ 35 7.1确定锚索钢绞线规格 .................................................................................................................... 35 7.2锚索设置位置及设计倾角的确定 ........................................................................................................................ 35 7.3锚索间距及设计锚固力的确定 ............................................................................................................................................... 36 7.4 锚固体设计计算 .................................................................................................... 37 8YK231+309断面现浇钢筋混凝土地梁设计计算 ............................................................................................................................................... 37 8.1 验算地基承载力 .................................................................................................................................................... 37 8.2地梁内力计算 ................................................................................................................................................... 39 8.3 地梁配筋计算 ................................................................................................................................................... 41 9抗滑桩的设计方法 ....................................................................................................................................................... 41 9.1 抗滑桩概述 ........................................................................................................................... 44 9.2 抗滑桩设计要求和设计内容