超变形法及其在深基坑开挖中的应用

Over-deformation Method and Its Application in Deep Excavation

基于超变形准则 ,提出了一种新的基坑稳定判定方法———超变形法 ,能方便地计算出基坑临界变形指标作为观测警戒指标 ,结合实际观测资料 ,可对结构在施工期及建成后的稳定性作出直观的评价。还介绍了在润扬大桥南锚碇深基坑稳定的评判中的应用 ,结果表明超变形法能较准确的判断结构的稳定性 ,应用方便 。

Based on over?deformation rule, a new method to determine the stabilization of pit, over?deformation method, is established. It becomes facility to calculate the critical guideline of the deformation of the pit. Regarding it as the precaution guideline, we can directly evaluate the stabilization of the pit. Finally, it is applied in the evaluation of the RunYang Bridge deep pit's stabilization and it is proved more efficient than other method.