轻质材料在公路工程中的应用

费  凌

（上海市公路管理处）

摘要:  本文分析了软土地区修筑公路产生桥头跳车现象的原因，并通过工程实例阐明轻质材料在软土地区高等级公路中解决桥头跳车问题的应用前景，为最终解决软土地基桥头跳车问题探索一条新途径。

关键词: 软土地基; 沉降;桥头跳车; EPS;珍珠岩  

                                                             Application Of The Lightweight Materials In Highway

                                                                                               FEI Lin

Abstract: This article analyzes the effect factors of jump the car on bridge structure link to road at the soft land area. The practice proves that lightweight material is useful way to solve problem of jump the car. At the same time this way investigates a new path for solution to jump the car at the soft land at all.

Key words: The soft land ;Subsidence ; Jump the car ;EPS; Perlite