DOI: 10.11799/ce201606017
Research on finite-length computational model of deep-buried frozen soil wall thickness
HUANG Li
SONG Chang-jun
Abstract：As the design theory of frozen wall is the key of artificially ground freezing construction, and the conventional elastic-plastic mechanical models are not suitable for frozen wall design in deep alluvium. Considering the effect of excavation length and the interaction between frozen soil wall and its surrounding earth mass, the calculation models of deformation and thickness of finite-length frozen soil wall are developed based on the rheological theory of frozen soil and Hooke′s law of deviatoric tensor of equivalent stress-equivalent strain under tri-axial stress state. Combined with a shaft freezing engineering case, the influences of excavation length and duration of exposure on the calculation models are discussed. The results show that reducing the excavation section appropriately and controlling the construction speed reasonable is crucial to the safety of artificial freezing shaft sinking project.
Keywords：frozen soil wallrheological theory of frozen soilexcavation unloadingfinite-length
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 54-57 )