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。
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.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2005年第11期1849-1852,共4页
Rock and Soil Mechanics
基金
建设部2003科研攻关项目(No.63-03-2-004)
