通过对多个典型取土场的土样进行不同掺灰率的试验，确定了石灰改良膨胀土合理的掺灰率。
The reasonable lime mix rate of the lime improved expansile earthworks has been confirmed by the ways of various lime and earthwork mixture rate upon different earthwork sample.
同时证实了废弃轮胎胶粉改良膨胀土效果较为显著，为膨胀土改良提供了一个新的改良方法。
It confirms the assumption that wasted tire rubber powder can improve the expansive soil greatly. It provides a new improving method to reduce the engineering disaster caused by the expansive soil.
试验研究表明，掺合石灰的方法对该类膨胀土的改良效果较好。
The experimental study indicates mixing with lime improved this kind of expansive soil is of high quality.
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