Abstract：Research purposes: Ballastless track has been the main railway track form of passenger dedicated railway line. Control of subgrade settlement under condition of thick compressible foundation is the key difficult technical problem in construction of passenger dedicated railway line, so it is urgent to do the research on it for the purpose of working out the settlement control program with economic ration and technical reliability, which fits to the features of high embankment ballastless track.
Research methods: Based on the subgrade settlement control design of the experimental section of Beijing-Tianjin intercity railway, the rational design program is worked out through making demonstrations in technology and economy.
Research results: Because the cost of settlement control for higher embankment of thick compressible subgride is relatively high, retaining structure which usually increase the engineering cost in common design now become a method to save engineering investment.
Research conclusions: To adopt retaining structure in settlement control for higher embankment of thick compressible subgrade can save money, occupy less land and make the construction environment beautiful on the basis of improving the reliability of settlement control.
崔维孝,赵成刚. 深厚压缩层地基条件下路基沉降控制[J]. 铁道工程学报, 2007, 24(12): 28-31.
CUI Wei-xiao,ZHAOCheng-gang. Control of Subgrade Settlement under Condition of Thick Compressible Foundation. 铁道工程学报, 2007, 24(12): 28-31.
2007, Vol. 24 
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