Numerical analysis of partial basement foundation slab reconstruction by freezing method
Based on reconstruction application cases of the basement located in the permeable soil layer,the precipitation after demolition of structural plate is the key problem of construction.The freezing method was proposed to be applied to the partial basement foundation slab reconstruction in permeable soil layer.Partial soil freezing models were established.The freezing pattern of the reconstruction area was studied.The influence of initial soil temperature,freezing pipe temperature and freezing pipe diameter on the overlapping time of freezing wall was analyzed.The result indicates that the overlapping time of bottom freezing pipe wall exerts a significant control over the construction process.Modulating the temperature and diameter of the freezing pipes within a defined range can effectively minimize the construction time.