Combined with the practical example of bridge abutment back backfilling project in Guangzhou southern expressway SD6 bid section, the article introduces its construction technology and its quality control method from the aspects of the design and the labor power and equipment arranged in the construction of the bridge abutment back reinforced filling project.

Analysis of the reinforced soils strength using damage theory;

Experiment investigation on reinforcement mechanism and strength criterion of grassroots reinforced soils;

Investigation of behavior of normalized stress within reinforced soil;

Design on reinforced earth retaining wall used for high embankment of mountainous area highway;

Development and engineering application of reinforced earth technique;

Research status and development trend of reinforced earth technology;

The comparison is made with the solution of non-reinforced slopes,and the reliable result is obtained,therefore,the method presented in this paper is an effective way to analyze the stability of reinforced slopes.