The unloading deformation modulus can be expressed as the tangent modulus at any time; and it can be obtained through the test results.
任一时间的卸荷变形模量仍可表示为切线模量，并可通过试验成果推导得出；
In the calculation of soil heave, the deformation modulus is obtained by taking the unloading path as the basic stress path and the effect of dewatering is not taken into account.
目前对于深基坑的回弹量计算，都是以基坑开挖卸荷为基本应力路径获取变形模量，并未考虑降水的影响。
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