Investigation of dynamic consolidation effect on Collapse loess roadbed
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摘要: 在強夯法處理濕陷性黃土路基施工中,為了及時掌握和了解強夯加固深度,并對加固效果進行正確評估,利用測振儀進行現場測振,通過對測得的振動波參數進行數值分析,獲得強夯法有效加固深度計算公式,同時利用重力觸探方法對強夯后路基承載力進行平行檢驗.結果表明,有效加固深度計算公式與經驗公式有較好的一致性,采用測振儀測控強夯法處理濕陷性黃土路基加固效果是一種有效的新方法.Abstract: It is important to control the effective strengthening depth in the dynamic consolidation of collapse loess roadbed. The consolidation effect was evaluated by analyzing the data of vibration wave from the field test and deducing the formula of strengthening depth. The parallel test of the roadbed strength after consolidation was done by gravity reconnaissance. The better consistency of the derived formula of strengthening depth with the empirical formula proves it is a new and effective method to control the consolidation effect by vibration measurement.
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Key words:
- dynamic consolidation /
- collapse loess /
- roadbed /
- vibration gauge
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