管井降水预压联合“轻夯多遍”软土地基处理试验

刘宝臣1，谢艳华1，张炳晖1， 向志坤1，吴名江2  (1 桂林理工大学土木与建筑工程学院, 桂林 541004; 2 江苏兴亿达建设有限公司, 南通 226200)

［摘要］结合青岛港前湾港填海软基加固工程，对管井降水联合“轻夯多遍”地基处理新工艺加固填海软基进行现场试验研究。以青岛港前湾港四期工程1#～4＃泊位的3个试验区为例，采用3种不同的试验参数进行施工，通过对试验前后各项检测数据进行整理和对比分析，证明了此新工艺对加固填海软基是有效可行的，同时对试验中3个试验区的加固效果进行比较，得出了相对优化的施工参数，进一步完善了该套工艺的技术参数。

［关键词］管井降水；轻夯多遍；软土地基加固；强夯

中图分类号：TU472.31,TU463文献标识码：A文章编号：1002-848X(2011)01-0118-04

Experiment on soft foundation treatment by using tube well dewatering associate with ‘low-power re-ram’

Liu Baochen1, Xie Yanhua1, Zhang Binghui1, Xiang Zhikun1, Wu Mingjiang2

(1 Civil Engineering College, Guilin University of Technology, Guilin 541004, China；

2 Xingyida Construction Co., Ltd., Nantong 226200, China)

Abstract:Using the Bay of Qingdao Port 1#～4# berths sea reclamation soft foundation consolidation as an example, a site test about tube well dewatering associate with ‘low-power re-ram’ to deal with reclamation of soft foundation was introduced. Different experimental parameters are  adopted in three experimental zones proposed. By comparing and analyzing tryout test data before and after the treatment, the technology that deals with reclamation of soft foundation is confirmed tobe feasible and effective. At the same time, optimizations of construction parameters have been proposed through comparing the effect of reinforcement, which can serve as a reference for similar engineerings.

Keywords:tube well dewatering; low-power re-ram; soft foundation strengthening; strong ram

*广西建筑工程检测与试验重点实验室开放基金(001102208041)岩溶区桩基础的三维动力特性分析(桂科自0728220),水泥搅拌法对有机质污染红粘土地基的加固机理及工程应用研究(桂科能07109005-08)。

作者简介：刘宝臣，教授，硕士生导师，Email：lllbch@163.com。

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