soft foundation的用法和樣例：
例句
- CPT and SPT test were conducted before and after the treatment to study the improvement of the soft soil ground.
通過對比處理前後試驗區內的靜力觸探與標準貫入試驗結果分析其對軟弱地基的加固效果。 - When dynamic compaction method is used to improve the soft soil foundation, environmental vibration will appear due to radiating of compaction energy.
摘要利用強夯法加固軟弱地基時，其夯擊能將以波的形式向外擴散，進而導致周圍環境的振動。
