| 软基处理中的扁铲侧胀试验研究 |
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| 引用本文： | 向先超,汪稔,朱长歧.软基处理中的扁铲侧胀试验研究[J].岩土力学,2005,26(11):1849-1852. |
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| 作者姓名： | 向先超 汪稔 朱长歧 |
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| 作者单位： | 中国科学院岩土力学重点实验室,武汉,430071 |
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| 基金项目： | 建设部2003科研攻关项目(No.63-03-2-004) |
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| 摘 要： | 在厦门海沧大道软基加固过程中,运用扁铲侧胀试验来获取软土力学指标,并与其他常用原位试验方法进行了比较,结果表明扁铲试验(DMT)具有操作简单、对土体扰动小、测试参数多、准确快捷等特点。通过对两种不同处理方法加固后的软基进行扁铲试验,发现袋装砂井超载预压法明显提高了软土的力学性能,其加固效果随深度增加而减弱,而从较长时间来看,粉喷桩对该地区软土本身力学性质没有太大改变。
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| 关 键 词： | 扁铲侧胀试验(DMT) 软基处理 单桥静力触探 孔压静力触探 十字板试验 |
| 文章编号： | 1000-7598-（2005）11-1849-04 |
| 收稿时间： | 2004-09-25 |
| 修稿时间： | 2004-11-12 |
DMT study on soft ground treatment of Xiamen Haicang Road |
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| XIANG Xian-chao,WANG Ren,ZHU Chang-qi.DMT study on soft ground treatment of Xiamen Haicang Road[J].Rock and Soil Mechanics,2005,26(11):1849-1852. |
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| Authors: | XIANG Xian-chao WANG Ren ZHU Chang-qi |
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| Institution: | Key Laboratory of Rock and Soil Mechanics, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China |
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| Abstract: | In the soft ground treatment process of Xiamen Haicang Road,flat dilatometer test(DMT) is applied to get mechanical property of soft soil.From the DMT data and the comparison with several other in-situ tests,a conclusion can be drawn that DMT is simply to operate,can make less disturbance of soil and get many mechanical parameters exactly.The DMT for a soft ground treated with two different methods shows that the preloaded sand drain can obviously improve mechanical capacity of soft soil;the treatment effect will reduce while depth increase;and the cement injection pile has very little influence of the mechanical property of soft soil from a comparative long time. |
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| Keywords: | DMT soft ground treatment CPT CPTU VST |
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