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分析了配合比参数对防渗层沥青混凝土性能影响的程度，并以峡口工程为例系统地探讨了寒冷地区防渗层配合比试验研究的方法，提出应根据具体工程情况确定关键指标和试验研究路径。
The influence of mix ratio parameters on the performance of the asphalt concrete of the impervious layer was analyzed. Taking the Xiakou Project as an example, the method of experimental study on mixing ratio of the impervious layer in cold area was systematically discussed. It was proposed that the key indicators and tests should be determined according to the specific engineering conditions. Research path.