Study on Frost Heave Evaluation System of Large Canal Foundation Soil in Cold Area

Frost heave of canal foundation soil is the main factor destroying system engineering in cold area. Restricted by technical and economic conditions, further evaluation frost heaving index large channel areas where needed. Based on field investigation relevant methods, several indexes such as water content, compaction coefficient, fine grain cumulative negative surface gas temperature, direction slope are selected. Combined with observation results prototype test for many years, degree was comprehensively evaluated. The purpose this paper to standardize method characteristics region, which has important guiding significance prevention control road damage region.