摘要
随着山区高速公路的发展,由于受地形限制,高速公路选址与地方城市道路选址存在交叉并行,必须在填方堤上修筑高挡墙。由于填方体存在地基承载力不足的问题,需要考虑修筑对地基承载力要求不高的扶壁式挡土墙。以某高速公路二堡互通式立体交叉的匝道与地方道路碧阳二道并行交叉为例,通过方案比选,证明在填方体上修筑扶壁式挡土墙经济性较好,并且能够解决地基承载力不足的问题。
As the development of mountainous highway,there are the problems of crossing with and running parallel to each other between the site selection of expressway and urban road due to the restriction of landform.The high retaining wall on the embankment must be built.Counterfort retaining walls should be taken into account because of insufficient bearing capacity.In this paper,taking the interchange and parallel of the ramp of two fort interchange on a expressway and BI YANG ER DAO on a local road as an example,the comparison of several design proposals are made to make sure that it has better economy benefit to build the counterfort retaining walls on embankment and can solve the problem of lack of bearing capacity.
出处
《交通科技》
2016年第5期104-106,共3页
Transportation Science & Technology
关键词
扶壁式挡土墙
高速公路
填方体
承载力
counterfort retaining walls
expressway
embankment
bearing capacity
