基于公路路基沉降的含水层处理方法分析

Analysis of Aquifer Treatment Method Based on Highway Subgrade Settlement

公路路基路面沉降等现象会对路面产生较大的安全隐患。为提升施工质量,保证施工安全,提出基于公路路基沉降的含水层处理方法,探讨市政道路工程中沉降段路基路面的沉降机理,深入分析沉降机理的处理过程,明确沉降量的计算方法,在考虑压实度的情况下,建立双层含水层抽水引起的地面沉降量预测数学模型,并用此模型计算的地面沉降量与实际沉降量较为接近,验证该计算模型可行,并可预测不同降深可能引起的地面沉降量。实验结果表明,采用该沉降处理技术效果良好,处理后的过渡段路面再次沉降量平均为15 cm,低于25 cm,处理后的路面压实度约为97%,能够满足路面施工要求。

Since the subgrade and pavement of highways in my country are prone to settlement and other phenomena,it will cause great safety hazards to the pavement.In order to improve the construction quality and ensure construction safety,this paper proposes the treatment method of aquifer based on the settlement of highway roadbed,discusses the settlement mechanism of roadbed pavement in the settlement section of municipal road engineering,deeply analyzes the treatment process of settlement mechanism,and clarifies the calculation method of settlement amount.Under consideration ofcompaction,a mathematical model for predicting the land subsidence caused by pumping of the double-layer aquifer is established,and the land subsidence calculated by this model is close to the actual subsidence,which verifies that the calculation model is feasible and can predict different The amount of land subsidence that may be caused by the drawdown.The experimental results show that the treatment effect of this settlement treatment technology is good.The average subsidence of the pavement in the transition section after treatment is 15cm,which is lower than 25cm.The compaction degree of the treated pavement is about 97%,which can meet the construction requirements of pavement construction.