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中文摘要：
由于垃圾填埋场地具有性质复杂、厚度变化大、强度较低、压缩系数大、腐蚀性和污染性强等特点,在服务期内和封顶后都会产生大幅度的沉降。结合西安某垃圾填埋场实例,探讨了孔内深层超强夯桩（SDDC桩）结合灌注桩在垃圾填埋场地基处理中的施工技术。实践证明,采用该技术在满足地基承载力的基础上,降低了工程造价、提高了工程质量,取得了良好的社会经济效益。
英文摘要：
Due to some characteristics of the landfill such as the complex properties,big change in thickness,low strength,large compressibility,strong corrosion resistance and polluting,it will generate settlement by a large margin during the service period and after capping.This paper cites an example of a landfill site in Xi＇an,probing into the foundation treatment construction technology of landfill by super down hole dynamic compaction pile combined with bored pile.It has been proved in practice that using this technique can meet the bearing capacity of foundation soil,at the same time,it also can reduce the engineering cost,improve the engineering quality and achieve good social and economic benefits.
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