Immediate or Undrained Settlement的意思|示意

瞬时沉降 ...Immediate or undrained settlement is that amount that takes place during the application of loading, but before any significant volume change has occurred. 瞬时（或不排水）沉降是加载 过程中的沉降，此时土还未发生大的体积变化。Although it theoretically occurs in all loading situations, with slowly applied loading, it is masked by consolidation settlement as volume changes occur. 尽管理论上讲，在各种加载过程中都发生此类沉降，但它被伴有体积变化的 固结沉降所掩盖。The calculation of amounts of immediate settlement are therefore normally related to quickly applied loading e.g., beneath building structure. 因此， 瞬时沉降量的计算通常 与快速加载有关，例如，建筑物下面的沉降。