高速公路软土路基勘察及加固措施研究

INVESTIGATION AND REINFORCEMENT MEASURES OF SOFT SOIL SUBGRADE OF EXPRESSWAY

为保证软土地区高速公路的建设水平,以昆明至巧家高速公路的东川至格勒段工程为例,研究高速公路软土路基勘察方法以及路基加固措施。采用静力触探勘察该工程路段的地质情况,并分析地质勘察结果,依据分析结果制订路基加固方案,保证软土路基稳定性,降低路基沉降,提升路基承载力。并经试验分析得出:路基加固后沉降结果以及承载性均在允许标准范围内,满足施工标准。

In order to ensure the construction level of expressways in soft soil areas,taking the Dongchuan Gele section of the Kunming Qiaojia expressway as an example,this paper studies the survey methods and reinforcement measures for soft soil roadbed of expressways.Using static penetration testing to investigate the geological conditions of the engineering section,and analyzing the geological survey results,a roadbed reinforcement plan is formulated based on the analysis results to ensure the stability of the soft soil roadbed,reduce roadbed settlement,and enhance the bearing capacity of the roadbed.After experimental analysis,it was found that the settlement results and bearing capacity of the roadbed after reinforcement are within the allowable standard range,meeting the construction standards.