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结合张石高速公路石家庄正定段路基填筑砾类土施工,具体介绍砾类土填筑压实度控制方法。根据以上压实度控制方法,立即应用于现场路基填筑压实度检验中,实际结果正如当初设想的一样,由于针对不同含石量均有相应的最大干密度,避免了常规击实试验标准的单一性,使标准也灵活了起来,基本杜绝了严格碾压后路基压实度不达标或超百的现象,充分保证了路基填筑施工质量。
Combined with the construction of gravelly soil in the Zhengding section of the Shijiazhuang-Zhangzhou Expressway, we will introduce the control method of gravelly soil compaction. According to the above compaction control method, it is immediately applied to the on-site compaction test of roadbed filling. The actual results are just as originally envisaged. Due to the maximum dry density corresponding to different stone content, the conventional compaction test standard is avoided The unity of the standard is also flexible up, basically eliminate the compaction of subgrade after strict compaction is not up to or exceeding 100 phenomenon, fully guarantee the construction quality of subgrade filling.