某二级公路设计 毕业设计论文

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1、某二级公路设计绪论为了巩固我们所学的知识，并在各方面得到更进一步的提高，我们选择了重庆某地区新建二级公路设计作为毕业设计，这是在毕业之前对自身学习状况的最后一次检查。我所选择的设计路段是从K0+000至K2+274.5段，全长2274.5米，设计车速60km/h,路基宽度为10m。此次毕业设计主要包括的内容如下：1、路线设计：在已知平面图的情况下，进行纵断面的设计，要求线路顺畅、填挖平衡、经济合理。2、路基设计：包括各个桩号的填挖计算、填挖较大地段的稳定分析、整个线路的土石调运借配等。3、路面设计：路基在不同干湿状态下，所设计的沥青路面和水泥混凝土路面

2、方案的比选，要求经济合理，便于施工并满足各设计规范要求。4、路基、路面排水工程；高填挖地段的防护工程以及路基加固工程：这一部分相当重要，对于路基排水，采用了边沟、截水沟、急流槽等排水设施；对于路面排水，除了对路面进行了路拱设计，还进行中央分隔带的排水设计；对于特殊路段的防护和加固主要采用了骨架内植草和挡土墙。5、桥涵设计：包括桥梁和涵洞的形式、尺寸的设计。目录1路线设计·······················································11.1线形设计一般原则··························

3、··················11.2平面线形要素的组合类型······································11.3平面设计方法················································21.4平曲线设计··················································21.5纵断面设计··················································41.6横断面设计·······················

4、···························52路基路面设计····················································72.1一般路基设计················································72.2软基处理····················································82.3路基防护···················································92.4支挡结构设计·····

5、··········································92.52路面结构设计···············································102.6路基土石方数量计算及调配···································113路基路面排水设计··············································143.1路基排水设计···············································143.2路面排水设计·

6、··············································144涵洞基本构造··················································144.1圆管涵·····················································144.2盖板涵·····················································155设计计算表············································

7、·······6参考文献······················································7结束语························································21路线设计1.1线形设计一般原则(1)平面线形应与地形、地物相适应，与周围环境相协调在地势平坦的平原微丘区，路线以方向为主导，平面线形三要素中以直线为主；在地势起伏很大的山岭重丘区，路线以高程为主导，为适应地形，曲线所占比例较大。直线、圆曲线、缓和曲线的选用与合理组合取决于地形地物等具体条件，不要片面强

8、调路线以直线为主或曲线为主。(2)保持平面线形的均衡与连贯①长直线尽头不能接以小半径曲线。长直