摘要
对先施工肋板式桥台后施工路堤填土的施工工艺下桥台的土压力和水平位移进行了现场测试,测试结果表明:桥头区填土施工过程中,填土对桥台施加的土压力较大,在静止土压力附近甚至大于静止土压力,桥台会产生明显的水平位移;在桥头区填土内分层铺设土工格栅,能有效减小土压力相对增量比λ和桥台水平位移。
The earth pressure and horizontal displacement of the ribbed slab abutment were measured in the process of first abutmednt later earth filling construction.Test results show that the earth pressure which act on the abutment is close to the earth pressure in still condition and abutment occur significant horizontal displacement.If geo-grid was used in the fill of embankment behind abutment, the increment ratio of earth pressure and horizontal displacement of abutment will reduced.
出处
《现代交通技术》
2007年第6期33-35,共3页
Modern Transportation Technology
关键词
肋板式桥台
土工格栅
土压力
土压力增量比
水平位移
ribbed slab abutment
geo-grid
earth pressure
increment ratio of earth pressure
horizontal displacement
