土工格室处治高速公路桥头跳车研究及应用

   智,贺维庚

(陕西高速公路工程咨询有限公司,陕西 西安  710061

  要:高速公路施工中,在桥台后填土位置易发生由于填料与结构物桥台不均匀沉降而导致的桥头跳车病害。本文基于土工格室加固机理,根据以往研究结论进行土工格室加固桥台后填土设计,并采用有限差分法进行数值模拟论证。将设计方案在施工中予以应用,经后期监控量测验证该方案可行有效。

关键词:土工格室桥头跳车

中图分类号:U416                  文献标识码:A

The Study and Application of the Geocell on the Treatment

of the Highway Bridge-head Bump

WANG ZhiHE Wei-geng

Shaanxi Expressway Engineering Consulting Co. Ltd.Xi'an 710061China

Abstract: In the highway constructiondue to the uneven settlement between filler and concretethe bump at bridge-head was liability emerged on back filling behind abutment. Based on the reinforcement mechanism of geocell and pre-research conclusionsthe paper designed the geocell on back filling behind abutmentand   carried numerical simulation by finite difference method. The design scheme was used in construction and demonstrated effectively by monitoring and measurement.

Key words: geocellbump at bridge-head