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基于湿软地基浅层处治的作用机理和理论计算,阐述了风积沙在公路工程湿软地基浅层处治中的应用及验算过程中相关参数的选取,通过试验,施工观测、施工工艺控制和在新疆地区实际工程中的应用,总结出风积沙作为换填材料的工程特性,对风积沙换填计算的参数选取提出了建议,总结出了一套较为成熟的适合风积沙材料施工工艺。结果表明:风积沙用做湿软地基的处理,路基沉降量较小,路基成型后路基高程趋于稳定,对地下水的封水效果明显,便于机械施工,处治效果明显,值得类似工程借鉴。
Based on the action mechanism and theoretical calculation of shallow soft foundation treatment, the application of aeolian sand in shallow treatment of wet and soft foundations of highway engineering and the selection of relevant parameters in the checking process are expounded. Through the experiment, construction observation, construction process control and In the practical engineering in Xinjiang area, the paper summarized the engineering characteristics of aeolian sand as a replacement material, put forward some suggestions on parameter selection of aeolian sand exchange, summed up a set of more mature suitable aeolian sand material construction Process. The results show that aeolian sand is used as a wet and soft foundation treatment, the subgrade settlement is small, the subgrade embankment elevation tends to be stable after embankment formation, and the effect of sealing water to the groundwater is obvious, which is convenient for mechanical construction and treatment, which is worthy of similar projects.