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| Research on the Expected Deformation Impact of Landfill Engineering on Existing Railway Subgrade |
| ZHANG Yan |
| (China Railway Siyuan Survey and Design Group Co. Ltd，Wuhan, Hubei 430074, China) |
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Abstract Research purposes： With the railway development, landfill engineering near the existing railway may cause the structure deformation of railway, so while landfill near the existing railway subgrade, we need to forecast the impact of the landfill engineering on the deformation of railway subgrade to ensure the safety of railway , analyze the influence of the slope stability，filling height，different filling spacing and load hierarchical level on the deformation of the existing subgrade. Research conclusions:(1) At specific amount of landfill，the influence of multi - stage loading on railway subgrade is less than single - stage loading. (2) At a certain landfill height，the influence of three - stage loading on existing railway subgrade less than two - stage loading， and the influence of different spacing on subgrade is not linear relationship. (3) Under the equal hierarchical loading size, the filling spacing is the main factor that affects deformation of existing railway subgrade. (4) The research result can provide reference to reduce the influence of other similar filling near high - speed railway on railway.
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Received: 08 October 2015
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2015, Vol. 32 
