The soft foundation of some subgrade of high-speed railway in operation caused abnormal settlement and a need for reinforcement; however, the reinforcement measures and these mechanism have received little attention. Numerical analysis method was adopted to study the mechanism and effects of the grounting and churning pile, which was used to reinforce soft soil subgrade in a high-speed railway. Results show that the settlement and lateral deformation are not symmetrical distribution but get larger along the inclined direction of stratum; reinforcement by grouting can decrease the settlement and the transverse differential deformation by improving the properties of soil, which can decrease the void ratio and increase the compression modulus; and reinforcement by churning pile can increase the stability of embankment on soft soil subgrade. The results could provide theoretical guidance for reinforcement of soft soil subgrade of high-speed railway in operation.
Mechanism and Effects of Reinforcement of Embankment of High-Speed Railway in Operation
Fourth International Conference on Transportation Engineering ; 2013 ; Chengdu, China
ICTE 2013 ; 650-656
09.10.2013
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Measures and Mechanism of Reinforcement of Soft Subgrade of High Speed Railway in Operation
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