关于爆炸法处理水下淤泥地基的工艺(续完)

Blasting Techniques Applied in Treatment of Underwater Mucky Soil Foundation Layers

连云港西大堤工程中的超软土地基处理是工程中的关键技术问题。本文叙述了爆炸法处理水下淤泥地基的实验研究、模型律及药量公式研究、工程性试验及在西大堤工程中的应用等，包括堤下爆炸、爆夯及爆填工艺。采用水下爆炸法处理基槽软基后，取消了基槽开挖和水抛棱体，以混合石料代替了分级石料，提高了堤身密度，消除了后期沉降，节省了工程造价。

A very soft soil foundation treatment in the west dike of Lianyungang is the key technical point of the project. This paper describes the experiment on the underwater mucky soil foundation layers by blasting; the investigation on model similarity and formula of charges; the practical test for the project and the application of the technique in the west dike works, etc.. This technique covers the buried charges in the sea dike, the compaction and rock filling by blasting. After using underwater blasting technique, the processes of the foundation trench excavation and rubble mound operation were eliminated and the mixed rock materials were used instead of sorted rubble materials, thus improving the compactness of the dike body, eliminating the late settlement of the dike and saving the cost of project.