河谷区多层软土地基强夯处治分析

Analysis on Dynamic Compaction Treatment for Multi-layer Soft Soil Foundation in River Valley Area

文章依托高速公路多层软土地基强夯处治项目,在施工现场选取具有代表性的监测断面开展现场监测,检验河谷区多层软土地基强夯处治效果。由监测数据得出,在强夯处治和路基填筑施工阶段,地基分层沉降、土压力、孔隙水压力和侧向位移增幅均较大,工后逐渐趋于稳定,可说明强夯处治后软基承载力得到有效提升,路基整体结构稳定,加固效果良好。

Based on the dynamic compaction treatment project of multi-layer soft soil foundation of expressway,the on-site monitoring is carried out by selecting the representative monitoring sections at the construction site,so as to test the effectiveness of the dynamic compaction treatment for the multi-layer soft soil foundation in the river valley area.According to the monitoring data,during the stages of dynamic compaction treatment and roadbed filling construction,the layered settlement of foundation,soil pressure,pore water pressure and lateral displacement all increase significantly,and gradually stabilize after construction.It indicates that the bearing capacity of the soft foundation is effectively improved after the dynamic compaction treatment,the overall structure of the roadbed is stable,and the reinforcement effect is good.