Abstract
The formation process of artificially frozen soils in the field, which significantly affects the behaviour of frozen walls, can be divided into three stages – that is, K0 drained consolidation (K0DC), drained freezing under applied stress (F) and the formation of lateral thermal gradient (G). The K0DCGF method was thus developed and its reliability was comprehensively evaluated by testing on hollow cylindrical specimens. It was found that the measured K0 at the inner and outer surfaces of the hollow cylindrical specimens was identical to that of the cylindrical specimens. Unlike the widely observed frost heave during freezing prior to stress application, drained freezing under applied stress resulted in a slight shrinkage of the specimen's volume. The weakening of the lateral thermal gradient on the K0DCGF-based strength was smaller than that observed in previous studies of frozen soil specimens with a vertical thermal gradient due to the parallel structures of the frozen zones with different temperatures in the frozen hollow cylinder. The proposed K0DCGF method was validated using multiple tests and can be used for assessing the strength behaviour and associated mechanism of various artificially frozen soils.
Sign-in/Register to access full text options 
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.
