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扁铲侧胀试验对水平应力具有较高的灵敏度,可用于地基土压实效果的检验。南京龙潭港三期工程采用强夯法加固铁矿石堆场,在试验D区及E区采用室内土工试验、静力触探试验及扁铲侧胀试验检验强夯加固效果。通过对比发现:夯后MDMT/ES1-2及MDMT/PS分别增加为夯前的1.4~2.0及1.3~2.9倍,表明扁铲侧胀试验对水平应力更敏感,较其他原位测试试验更适用于强夯效果的检验。
Flat dilatometer tests have high sensitivity to horizontal stress and can be used to test the compaction effect of foundation soil. Nanjing Longtan Port Phase III Project adopted dynamic compaction to reinforce the iron ore yard. Indoor geotechnical test, static probe test and flat dilatometer test were used to test the effect of dynamic compaction in D and E zones. The results showed that the MDMT / ES1-2 and MDMT / PS were increased to 1.4-2.0 and 1.3-2.9 times respectively before ramming, indicating that the flat dilatometer test is more sensitive to horizontal stress than other in situ test tests In the dynamic compaction test.