This paper introduces the reinforcement principles of soft soil roadbed, mainly describes the grouting liquid mixing proportion test of reinforcing soft soil roadbed, and analyzes the impacts of clay quantity, fly ash quantity, and variety of superplasticizer quantity upon grouting liquid performance. Through comparison, it finally obtains the grouting liquid mixing proportion suiting soft soil roadbed reinforcement, so as to achieve the goal of improve the treatment effect of soft soil subgrade.%介绍了软土路基加固原理,重点描述了加固软土地基的注浆液的配合比试验,并对粘土掺量、粉煤灰掺量以及减水剂掺量的变化对浆液各种性能的影响进行分析,经过比较得出了适合软土路基加固的注浆液的配合比,从而达到更好提高软土地基的处理效果的目的。
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