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Train load the railway embankment bear passed down from the track bed, slowing the train dynamic stress, and train loads and dynamic stress transfer to the embankment or foundation, roadbed need to maintain a certain strength, stability and geometry state, timely discharge to surface precipitation roadbed body range, to maintain the basic road body dry. However, the the embankment foundation bed Frothing mud base the bed sinking and outside squeeze deformation and other diseases will weaken the subgrade, must be eliminated in order to ensure the line is in good condition, to ensure train safety, smooth, comfortable, uninterrupted by the provisions of per hour to run. With the development of China's railway overloaded technology in recent years, increased speed lines increased mileage and vehicle density railway embankment load of great changes, the stress level of the roadbed, distribution status and mode of action has undergone significant changes, the new the subgrade bed defects appeared in large numbers, the original due to packing, the structural design of technical standards and construction quality problems led to a variety of the Road Bed disease more serious, more than 8% of the total number of existing railway line there are all kinds of subgrade bed diseases, the railway roadbed problems of task is very arduous. China's traditional the railway roadbed problems of basic by manpower, low level of mechanization and more difficult to guarantee the quality of work; construction sunroof and job site constraints, the depth of the foundation bed processing is limited, generally only for the fill around 0.3m; operating efficiency is low, labor costs; construction safety risk, security control difficult. This paper summarizes the the railway embankment common diseases in China - Mud Pumping roadbed subsidence, deformation of the outer squeeze, roadbed sinkhole, the classification of frost damage, the formation the causes and punish disease of the method. This article describes the roadbed processing car structure, operating principles, operating conditions, performance characteristics and operational effectiveness, combined with the construction of our country for the first time roadbed treatment car roadbed problems of construction practice operating processes and construction organization, research the roadbed treatment car remediation railway roadbed disease Construction Technology , summed up the subgrade defects construction of roadbed treatment car remediation main technical requirements, quality standards, construction skylights, the rate-limiting conditions and contains the construction program, construction marshalling of trains and camping vehicles, construction machinery and labor organizations, the construction work flow planning, construction units division of labor, construction safety measures, emergency plans for the construction organization. To explore the work of the pre-construction, construction preparation work, construction scheduling, operating methods, equipment design flaws and blocked sunroof time and improve the roadbed treatment car operating efficiency, and to explore ways to improve the roadbed treatment car construction quality in order to China's railway conditions of transport, according to the characteristics of the construction of China's railway transport and works, give full play to the role of the roadbed car in the construction of roadbed problems of, its operating efficiency and quality of construction to meet or exceed the design requirements, better play in the renovation of the railway embankment role in diseases construction.
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