Abstract：
Quantitative analysis method was adopted to analyze the ingredients of miscellaneous fill in the Maying section connecting the Parrot Cay Yangtze River bridge and Hanyang, and analyzed the influence of HAS curing agent on construction quality and cost. The test result showed that miscellaneous fill could not be directly used as subgrade soil and shall be replaced by appropriate soil which shall be mixed with miscellaneous fill according to the mixing proportion of HAS curing agent, so as to improve the performance of miscellaneous fill, realize on-situ backfill, reduce earth transportation and construction cost, and increase construction efficiency.
