刚果(金)某钢结构厂房独立柱基础沉降治理工程实践  

Engineering practice of the foundation subsidence of the independent pillar of a steel structure plant in the Democratic Republic of the Congo (DRC)

作　　者：刘瀛 LIU Ying(China Railway Resources Group Co.,LTD,Beijing 100039,China)

机构地区：[1]中铁资源集团有限公司,北京100039

出　　处：《世界有色金属》2020年第8期174-175,共2页World Nonferrous Metals

摘　　要：刚果(金)某钢结构厂房独立柱基础发生不均匀沉降,工程钻取土样分析发现,近地表5~6米范围内的地基土为粉质粘土,具有湿陷性;其下伏岩性为粉砂质泥岩,具有较强承载力。在沉降基础两侧施工人工挖孔桩,进入砂质泥岩1米作为持力层。切割已沉降的钢立柱,用千斤顶将上部钢结构抬升复位,用人工挖孔桩提供支撑,钢结构厂房的沉降变形得到恢复,取得较好的治理效果。Congo (DRC) a steel structure plant independent column base uneven settlement,engineering drilling soil sample analysis found that the near surface of 5 to 6 meters range of the foundation soil for powdered clay,with wet subsidence;On both sides of the settlement foundation,the artificial hole-digging pile is constructed and 1 meter into the sand mud rock is used as the holding layer.Cutting the steel columns that fall,lifting the upper steel structure to the reset with a thousand gold tops,providing support with artificial hole-digging piles,and restoring the settlement deformation of the steel structure plant to achieve perfect governance results.

关 键 词：基础 沉降 挖孔桩 支撑 

分 类 号：P618.4[天文地球—矿床学]