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1.工程概况 中南国际大厦位于南京市中心新街口地区。该工程地上25层,地下3层,塔楼高99.8m,建筑面积26000m~2。结构为框-筒体系。工程桩为8000钻孔灌注桩。 本工程基础施工有以下特点: 1.1、土质差。该处地面以下4m为杂填土和淤泥质填土,4m至20m为软-流塑状粉质粘土,基岩理置深度35m,并在一角有古河道经过。地下水位为-1.20m。 1.2、基坑深。开挖深度9.9m,局部11.2m,三层地下室结构,在南京软土地基施工中较为少见。 1.3、变位小。鉴于现场道路、地下管
1. Project Overview Zhongnan International Mansion is located in the Xinjiekou area of downtown Nanjing. The project has 25 floors above ground and 3 floors underground. The height of the tower is 99.8m and the building area is 26000m~2. The structure is a frame-tube system. The engineering pile is 8000 bored pile. The basic construction of this project has the following characteristics: 1.1. Poor soil quality. The area below the ground 4m for the miscellaneous fill and muddy fill, 4m to 20m for the soft-flow plastic silty clay, bedrock depth of 35m, and in the corner of ancient river passage. The groundwater level is -1.20m. 1.2, deep pit. Excavation depth of 9.9m, a local 11.2m, three-story basement structure, is relatively rare in the construction of soft soil foundation in Nanjing. 1.3. The change is small. In view of the on-site roads, underground pipes