路桥过渡段楔形柔性搭板处治技术

介绍了一种新型的桥头跳车处治方法——楔形柔性搭板处治技术,系统阐述了该种方法的加固机理、技术特点、结构型式和施工工艺,并将其应用于靖王高速公路砂性黄土填料的台背跳车处理中。工程实践表明,楔形柔性搭板能明显提高砂性黄土填料的整体性和强度,增强路基的刚度;同时,能较好地协调桥台和路堤的沉降差,防治桥头跳车病害的发生。且大大减小工程造价,经济效益明显。

Wedge Flexible Slab Treating Method at Bridge Approach

A new treating method for the bump at bridge-head is introduced,named wedge flexbile slab.The reinforcement mechanic,technical characteristic,structural type and construction technology are illustrated in detail.A engineering practice is showed that the wedge flexbile slab is used to treat the bump at retailing backwall of the sand loess in the Jin-Wang Expressway.The engineering practices show that the wedge flexible slab can improve remarkably the integrity and strength of sand loess filling,cooperate the settlement difference between the abutment and embankment and prevent the bump diseases.In addition,the engineering price is decreased greatly and the economic benefit is prominent.