挤密桩法在自重湿陷性黄土场地高层建筑地基处理中的应用  

Research on Application of Compaction-pile Method in Ground Treatment of Tall Buildings in Loess Collapsible Site Under Overburden Pressure

作　　者：陈燕[1] 胡清花[1] 万怡秀 李志宁 张琳[1] 赵高峰 

机构地区：[1]北京富力城房地产开发有限公司,北京100022 [2]廊坊京御房地产开发有限公司,河北廊坊065000 [3]太原富力城房地产开发有限公司,山西太原030009

出　　处：《施工技术》2014年第9期106-110,共5页Construction Technology

摘　　要：在西安自重湿陷性黄土场地,首次采用灰土挤密桩和水泥土挤密桩分别对24层和30层的剪力墙住宅建筑进行地基处理,处理后的复合地基既消除了湿陷性,又达到设计要求的承载力,实测沉降量也非常小。本文通过对西安富力城南区和北区两个区域不同试桩案例的分析,详细阐述了挤密桩法处理过程中的各种影响因素,并将规范计算结果与试验值进行了对比,二者吻合较好。Lime-soil compaction pile and cement-soil compaction pile are used firstly in ground treatment of 24 and 30 storey residential buildings in loess collapsible site in Xi＇ an. The composite foundation could eliminate collapsibility, improve the bearing capacity and decrease the settlement. All influencing factors during the compaction-pile procedure are stated through analyzing the experiments of the southern and north district in Xi＇an Fuli City project. Through comparison, the computation is coincide with the experimental value.

关 键 词：高层建筑 地基处理 桩基础 挤密桩法 

分 类 号：TU753[建筑科学—建筑技术科学]