珠海港南泾湾防波堤爆炸挤淤处理软基工程

简要介绍珠海港南泾湾防波堤爆炸处理软基工程施工情况，其中着重介绍了泥面爆炸法的爆填施工。根据爆填法石舌形成机理，并结合模型的实验的结果，分析了泥面爆填施工的可行性

Determination of the number of ψ(3686) events taken at BESIII

The number of ψ(3686) events collected by the BESIII detector during the 2021 run period is determined to be (2259.3±11.1)×106 by counting inclusive ψ(3686) hadronic events. The uncertainty is systematic and the statistical uncertainty is negligible. Meanwhile, the numbers of ψ(3686) events collected during the 2009 and 2012 run periods are updated to be (107.7±0.6)×106 and (345.4±2.6)×106, respectively. Both numbers are consistent with the previous measurements within one standard deviation. The total number of ψ(3686) events in the three data samples is (2712.4±14.3)×10^