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1)  vibroflotation densification method
振冲密实法
1.
Thence, a new imagination of vibroflotation densification method for the pile design is presented.
本文根据标贯检测资料,经统计分析,得出松散砂土地基上振冲单桩加固范围的立体形状为一圆台,并据此提出振冲密实法桩设计的新设想。
2)  non-filler vibro-flush
振冲密实
1.
Through analysis of engineering characteristics,associated with a series of tests,the effect was discussed about dynamic compaction,high vacuum densification,non-filler vibro-flush.
通过分析地基土的工程特性,结合试验研究,讨论了强夯、高真空击密、振冲密实三种地基处理措施的加固效果,提出适宜的地基处理措施。
3)  vibroflotation stabilize pile
振冲密实桩
1.
the method of construct of vibrofkotation stabilize pile and the key point of controlled quality have been summarized in this paper, and the author point out that use the vibroflotation stabilize pile to reinforce sofe foundation can raise the strength of soil of foundation, and remove the liquefaction, reduce production costs.
文章总结了振冲密实桩的施工方法和质量控制要点 ,指出振冲密实桩加固沙土软地基可以提高地基土强度 ,消除液化 ,降低生产成本。
4)  vibroflotation consolidation
振冲挤密法
1.
Based on the characteristics of the silty sand and the engineering conditions of Cao e River Grand Sluice,the on-the-spot experiments of vibroflotation consolidation without filling material on the middle to severe liquefiable silty sand foundation were made,by renovating tradi.
试验结果经标准贯入及剪切波波速测试,表明无填料振冲挤密法加固粉砂地基的抗震动液化效果显著。
5)  vibroflotation compaction
振冲加密
1.
Experiment and engineering practice on implement for vibroflotation compaction on medium-coarse sand with gravel;
含卵砾中粗砂振冲加密机具试验与工程实践
2.
Experiment and construction techniques for vibroflotation compaction of mediumcoarse sand with gravel in dam foundation;
坝基含卵砾中粗砂振冲加密试验与施工
6)  vibroflotation compaction without additional backfill materials
无填料振冲挤密法
1.
Based on the successful in-situ ground improvement experiment and large-scale practice of a harbor container terminal in Shanghai,by innovative and modified construction techniques and parameters,the effectiveness of vibroflotation compaction without additional backfill materials in filled saturated silty fine sands is investigated.
结合上海某深水港集装箱堆场地基加固工程,基于深厚吹填粉细砂的工程特性,通过对无填料振冲挤密法加固的有效性和工艺参数进行现场试验研究,对加固前后的土体变形、超静孔压变化、工艺参数和加固效果等进行了分析和讨论。
补充资料:振冲法
      通过振冲器产生水平方向振动力,振挤填料及周围土体,达到提高地基承载力、减少沉降量、增加地基稳定性、提高抗地震液化能力的地基处理方法。
  
  振冲器的上部为潜水电机,下部为振动体。电机转动时通过弹性联轴节带动振动体的中空轴旋转,轴上装有偏心块,以产生水平向振动力。在中空轴内装有射水管,水压可达0.4~0.6兆帕。依靠振动和管底射水将振冲器沉至所需深度,然后边提振冲器边填砂砾边振动,直到挤密填料及周围土体(振冲过程如图示)。振冲法施工时除振冲器外,尚需行走式起吊装置,泵送输水系统、控制操纵台等设备。
  
  
  德国在20世纪30年代首先用此法振密砂土地基。近年来已用于粘性土中。在饱和粘土的振冲孔中填以碎石,经振密形成石柱的方法(又称石柱法),主要起置换作用。由此形成的地基应按复合地基计算。
  

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