就地浅层固化技术稳定性与可靠性研究

Study on Stability and Reliability of In-situ Shallow Solidification Technology

就地浅层固化技术是一种环保、经济型加固处理软弱土体工艺,近年来虽然其已被大量应用于处理道路路基明浜和暗浜,但是关于该工艺的应用性研究成果并不多,稳定性与可靠性方面研究更少。因此,以昆阳路越江及配套道路工程和S3公路新建工程为载体,在采用相同工艺、材料和配合比条件下,开展该技术工艺固化稳定性和可靠性研究。研究结果表明:经就地浅层加固处理后,两个工程道路路基承载力均满足设计要求,而且最大沉降量、最大回弹量及回弹率等检测参数的数值大小与分布区间比较窄而稳定。

The in-situ shallow solidification technology is an environmental protection and economic solidification technology to treat the weak soil mass.In recent years,this technology has been widely applied to treat the open and hidden rivers of road subgrade,but there are a few study results of its technological application and there is much less study on its stability and reliability.Therefore,taking Kunyang Road Crossing River and Supporting Road Project and Newly Built S3 Highway Project as carrier,under the condition of using the same technology,material and mix proportion,the solidification stability and reliability of this technology are studied.The study result shows that the bearing capacities of the road subgrades in two projects all meet the design requirements after the in-situ shallow solidification treatment,and the values and the distribution interval of the detection parameters of the maximum settlement,the maximum resilience value and resilience rate are narrow and stable.