Overview and Countermeasures of Up-arching Deformation Problem for High-speed Railroad Roadbed
Aiming at the various types of arch deformation problems that have appeared in the high-speed railroad foundation project,the existing research results are summarized.The basic methods and the corresponding counter-measures to analyze and judge the causes of up-arching are put forward.The causes of up-arching are divided into three categories:foundation lithology,environmental factors and filling characteristics.The up-arching deformation is the result of comprehensive action of many reasons.The proposed remediation and preventive measures are only suggestions for specific reasons,and the actual situation needs comprehensive analysis to formulate countermeasures.