Combining with LJ4 section example of a highway project under construction,this paper introduced the determining process of main pa-rameters of lime soil compaction pile,through the test pointed out that using lime soil compaction pile treatment of foundation,gained the effect to eliminate the collapsibility and improve the foundation bearing capacity,provided reference for similar engineering construction.%结合某在建高速公路项目LJ4标段实例，介绍了灰土挤密桩主要参数确定的过程，通过试验验证指出采用灰土挤密法处理的地基，达到了消除湿陷性和提高地基承载力的效果，为类似工程的施工提供了参考借鉴。
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