| 膨胀土上修建高速公路互通匝道的工程案例 |
| |
| 引用本文： | 杨和平,倪啸,肖杰.膨胀土上修建高速公路互通匝道的工程案例[J].公路,2010(1). |
| |
| 作者姓名： | 杨和平 倪啸 肖杰 |
| |
| 作者单位： | 长沙理工大学特殊土工程研究所,长沙市,410076 |
| |
| 基金项目： | 交通部科技项目,项目编号200831800089 |
| |
| 摘 要： | 广西百色盆地是中国著名的膨胀土分布区之一,已建的南(宁)百(色)高速公路与在建的百(色)隆(林)高速公路在百色东交汇,整座立交完全坐落在膨胀土上,互通匝道的布置尤其边坡的稳定成了一大技术难题。在分析百色膨胀土工程地质特征和土性的基础上,运用已取得的膨胀土路基处治技术,因地制宜,将匝道中间岛挖除减少边坡数量,直接用开挖膨胀土填路堤并用柔性支护技术处治匝道堑坡,通过这3个方面的设计变更,安全、经济、有效地解决了膨胀土匝道修建问题,可为类似工程项目的建设提供参考和借鉴。
|
| 关 键 词： | 膨胀土 互通匝道 工程案例 柔性支护 中间岛 |
A Construction Case of Ramps Located on Expansive Soil for Expressway Interchange |
| |
| YANG He-ping,NI Xiao,XINAG Jie.A Construction Case of Ramps Located on Expansive Soil for Expressway Interchange[J].Highway,2010(1). |
| |
| Authors: | YANG He-ping NI Xiao XINAG Jie |
| |
| Institution: | Institute of Special Soils;Changsha University of Science and Technology;Changsha 410076;China |
| |
| Abstract: | The Baise basin in Guangxi Province is one of the famous areas for the wide distribution of expansive soil in China.Two expressways,Baise-Lonlin and Nanning-Baise,meet in the east of Baise City.The ramps of the interchange are completely located on the expansive soil.Therefore,the arrangement of interchange ramps and the stability of the cut slopes became big technological problems for the design and construction of the interchange.On the basis of the analysis of the engineering geological characteristics a... |
| |
| Keywords: | expansive soil interchange ramp construction case flexible supporting center-island |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
