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1)  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。
2)  vibroflotation without additional backfill materials
无填料振冲法
1.
Vibroflotation without additional backfill materials can resolve the above-mentioned problems effectively.
无填料振冲法能够有效解决上述问题,并具有施工简便、工期短和造价低等优点,因此如果能将无填料振冲法推广应用到粉细砂地基加固中,无疑具有非常广阔的应用前景和显著的社会经济效益。
2.
Based on the mechnism of vibroflotation method without additional backfill materials,combined with ground treatment example by hydraulic backfill silty and fine sand at an electric power plant,the suitability and strengthening effect of vibroflotation without additional backfill materials on silty and fine sand is experimentally studied.
该文基于无填料振冲法加固机理,结合某近海电厂工程试验区吹填粉细砂的地基处理工程实践,对无填料振冲法加固饱和吹填粉细砂地基的适宜性及加固效果进行了现场试验研究。
3)  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。
4)  vibroflotation without additional backfill materials
无填料振冲
1.
Applicability and effectiveness of low-energy dynamic compaction and vibroflotation without additional backfill materials in strengthening silty and fine sands were tested in two representative areas of a project.
结合某松细砂地基加固工程,对低能量强夯法和无填料振冲法处理松细砂地基的适用性及加固效果进行了试验研究,并对它们的适用范围、优缺点进行了比较分析。
5)  packless vibrating densifying method
无填料加密法
6)  vibrated dense pile
振冲挤密桩
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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