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市政道路软土路基处理措施研究

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道路软土路基处理的科学性对确保道路稳定性、延长道路使用寿命至关重要.文章介绍了PTC桩、砂桩和CFG桩复合路基加固措施,对采用不同加固措施的试桩进行了加载试验,监测了完工后 14 周路基的沉降量及不同深度土体孔隙水压力的变化情况.结果表明,所有试桩均满足设计要求,砂桩的平均位移最大;采用砂桩复合加固措施的路基沉降量最大,该加固措施对路基沉降的改善效果较差,相对而言,采用PTC桩加固后的单桩平均位移和路基的沉降量最小.
Research on Treatment Measures for Soft Soil Roadbed of Municipal Roads
The scientificity treatment of road soft soil subgrade is crucial for ensuring road stability and extending road service life.The article introduces the composite roadbed reinforcement measures of PTC piles,sand piles,and CFG piles.Load tests were conducted on test piles using different reinforcement measures,and the settlement of the roadbed and changes in soil pore water pressure at different depths were monitored 14 weeks after completion.The results show that all test piles meet the design requirements,and the average displacement of sand piles is the highest;the settlement of the roadbed is the highest when using sand pile composite reinforcement measures,and the improvement effect of this reinforcement measure on roadbed settlement is poor.Relatively,the average displacement of a single pile and the settlement of the roadbed are minimized after using PTC pile reinforcement.

municipal roadssoft soil subgradecomposite roadbed reinforcement

梁磊、吴世鹏、王袁

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中国市政工程中南设计研究总院有限公司,湖北 武汉 430014

市政道路 软土路基 复合路基加固

2024

工程技术研究
广州钢铁企业集团有限公司

工程技术研究

影响因子:0.081
ISSN:2096-2789
年,卷(期):2024.9(3)
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