浅谈砂砾料填筑施工与压实质量控制

砂砾料属于非粘性土料,只有压实到要求的密实程度,才能保证土体在受到相应剪切和地震荷载时不发生液化。砂砾料压实以动力荷载为主,不存在最优含水量的问题,一般不采用洒水碾压,而是采取重碾或增加碾压遍数的方法,压实质量用相对密度进行控制。由于目前碾压机具的压实功能远大于现行试验标准,施工时要达到设计要求的相对密度比较容易,因此在提高现行试验规程击实试验标准之前,相应提高设计要求的相对密度是可行的。

Discussion on the gravel material embankment construction and compaction quality control

Gravel material is non-cohesive material ,only the dense compacted to the required extent, in order to ensure that the soil does not occur in the corresponding subject to liquefaction and seismic shear loads. Gravel compacted based on dynamic loads,there is not the optimum moisture content,generally do not use sprinkler rolling,but take heavy grind or method increases rolled several times,with a relative density of compaction quality control.Due to the current function of roiling compaction equipment is much larger than the current test standards, the construction of the relative density of the design requirements to achieve easier, thus improving the existing test procedures prior to compaction test standards,a corresponding increase in the relative density of the design requirements is feasible.