在地震力作用下 ,对铁路桥梁来说常见的震害是台后填土下沉、桥台前倾。目前对这类问题的对策 ,仅是在新建桥台时用级配碎石作台后填土 ,以减轻桥头线路的下沉量。最近 ,日本铁道综合技术研究所通过试验研究 ,从级配碎石填土、水泥改性土填土、加筋土桥台、轻型加筋土桥台等多 Under the action of earthquake force, the common earthquake damage to railroad bridges is the filling of the backstage, the abutment leaning forward. At present, the countermeasures for such problems are only to use the graded broken stone as fill in the backstage during the construction of the abutment so as to reduce the amount of subsidence at the bridgehead. Recently, the Japan Railway Institute of integrated technology through experimental research, from graded gravel filling, cement-modified soil filling, reinforced soil abutment, lightweight reinforced earth abutments and more