Abstract
The post-construction settlement of Beijing-Shanghai high-speed railway is strictly limited. And the current settlement calculation methods of soft soil are not satisfactory for design. Combined with the project of Fengyang trial section of Beijing-Shanghai high-speed railway, the field tests on composite foundation composed by CFG pile-cap-net with preloading were carried out. The settlements of subgrade and the lateral displacements of soil were measured. The authors analyzed the variation law for pile and soil settlement of the subgrade with the changes of both the filling height of embankment and the consolidation time, and the lateral soil displacement with the changes of the filling height of embankment. The hyperbolic method for prediction settlement of subgrade was discussed. The results show that using CFG pile-cap-net is a reasonable treatment technique for soft soil foundation and can control post-construction settlement of subgrade effectively. The research achievement can provide reference for the treatment technology of soft soil in high-speed railway, and have been applied to the project of Beijing-Shanghai high-speed railway.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
