珠江口外伶仃防波堤堤址工程地质特征

Engingeering Geological Features for Dike of Wailing ding Island in the Pearl River Mouth

根据珠江口外伶仃防波堤堤址18个钻孔岩性特征,自上而下分为7层。本文根据这些钻探成果和实验资料,经过综合分析认为,中粗砂混淤泥层和中粗砂混粘土层宜做建筑物的持力层,花岗岩残积土层是建筑物最佳持力层。

Eighteen drilling holes for dikes are located in Shichong Gulf of WaiLingding Island that is in the Pearl River's Mouth. Based on the litho logical characters, 7 stratums of the dams are divided from shallow to deep of the sea floor. According to massive drilling results, experi- ment data and comprehensive analysis, conclusion can be drawn as following: medium-coarse sand with sludge layer and medium-coarse sand with clay layer are able to be the foundation's compressed layer, while loan-sand clay layer is the best choice to be the foundation s compressed layer.