作为地基处理的回填、换填材料,应具有较好的水稳定性和整体强度,这样才能保证地基处理后的强度、稳定性和耐久性。襄城县北汝河橡胶坝工程附近有丰富的河砂资源,故考虑用砂土作为河床地基回填料。通过室内试验对要选用的回填砂土进行比较系统地研究分析,得出了砂土的一些性能规律,为后面的计算分析提供依据。 As a foundation treatment of backfill, replacement materials, should have better water stability and overall strength, so as to ensure the strength, stability and durability after foundation treatment. Xiangcheng County North Ru River rubber dam project near the rich river sand resources, it is considered sand as a bed foundation backfill. By means of laboratory tests, we have systematically studied and analyzed the backfill sand to be used, and got some performance rules of sand so as to provide the basis for the later calculation and analysis.