浅谈高速公路桥台跳车的防治问题

Summarize Preventing of Express highway Bridge Abutment Traffic Jump

桥台跳车现象逢桥必有, 是高速公路普遍存在且难以根治的通病之一。目前,施工中常采用的预防措施有:改善台后原地面不良地质;处理台后下卧层软土;确保台后路基填筑密实;确保台前锥体及锥坡的稳定。预防和治理桥台跳车问题是一项长期而艰巨的工作,需要包括建设、设计和施工单位各方共同努力才能完成。

Bridge abutment traffic jump is always the challenge of all of express highway and is difficult to find a best solution. Currently used construction methods is as following:Geological soft soil is to be treated or changed behind the abutment under the express highway surface and backfilling work should be layer by layer carefully done with high quality and pressure. Stability of soil should be guaranteed ahead of abutment cone and abutment cone self's stability also should be protected. Prevention and treat of related jump problem is a long-term arduous work and the team work of owner, designer and contractor is highly needed.