洛比托港重力式码头工程施工及沉降位移观测

根据安哥拉洛比托港矿石码头工程管理实践,简要介绍境外重力式码头基础处理技术和沉箱安装方式,并根据沉降位移观测数值分析沉箱施工期间的沉降变位特性。分析表明施工期沉箱的沉降较小,沉降曲线走向符合一般性沉降规律;数值分析表明,沉箱内回填完成后基本上不存在位移,通过观测分析,上部结构施工应在沉箱安放回填完成2个月后进行。

Construction of Gravity Wharf in Lobito Port and Settlement and Displacement Observation

According to the construction experience of mineral terminal for Lobito Port in Angola,this paper introduces briefly the ground improvement technique and the caisson installation method of the overseas gravity wharf,analyzes and studies the sedimentation and displacement characters by observation of the caisson during the construction.The results indicate that sedimentation value of the caisson is small and the sedimentation curve is accord with a customarily sedimentation rule,the results also indicate that there are no displacement after the caisson is backfilled with the sand.The observation analysis also explains that the upper structure ought to start about two months after the caisson is backfilled.