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结合水泥土挤密桩在郑西客运专线灵宝段的湿陷性黄土处理地基的应用实例,依据水泥土挤密桩的作用原理,进行现场施工试验和现场质量监控。并利用大型有限元软件ANSYS对竖向荷载下水泥土单桩与土的相互作用进行了计算分析,结果表明,计算分析基本与实际测量吻合,说明水泥土挤密桩对处理湿陷性黄土是十分有效的。
Based on the practical application of cement-soil compaction pile in collapsible loess foundation of Lingbao section of Zheng-Xi Passenger Dedicated Line, site construction test and on-site quality control were conducted according to the principle of cement-soil compaction pile. And the interaction between cement-soil single pile and soil under vertical load is calculated and analyzed by using the large-scale finite element software ANSYS. The results show that the calculation and analysis are in good agreement with the actual measurement, which shows that the cement-soil compaction pile is very suitable for dealing with collapsible loess Effective.