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针对含砂低液限粉土路用性能差、常规压实方法难以达到压实度要求等施工难题,采用冲击碾压技术进行路基补压试验,获取了冲压遍数、冲压沉降量等施工控制参数。通过试验确定采用沉降与面波法进行冲压质量评价,为全线推广使用冲击压实技术提供了技术保障。
In view of the poor performance of roadway with low liquid limit silt, the compaction method is difficult to achieve the compaction requirements of conventional compaction method, the impact compaction technology subgrade pressure test, access to the number of stamping, stamping settlement and other construction control parameters . Through the test, the quality of stamping using settlement and surface wave method was determined, which provided technical support for the popularization and application of impact compaction technology across the line.