湿陷性黄土地基刚度软化法迫降纠倾试验研究  

Experimental Study on Forced Settlement Rectification Through Method of Adjusting Stiffness of Subsoil Body in Collapsible Loess Region

作　　者：宋彧[1] 朱彦鹏[1] 张贵文[1] 李恒堂[1] 衡涛[1] 

机构地区：[1]兰州理工大学,兰州730050

出　　处：《建筑科学》2007年第3期47-51,91,共6页Building Science

基　　金：甘肃省自然科研基金(Z5032-B25-002);学校重点学科发展经费(T200105);学校科研基金(Z42105);甘肃省"555"人才经费

摘　　要：针对湿陷性黄土地基的特点,对倾斜建筑物的缩尺模型进行了刚度软化法迫降纠倾的室内试验,分析了影响回倾的主要因素,探讨了模型的回倾规律。根据试验结果,给出了刚度软化法迫降纠倾注水量的取值范围,讨论了刚度软化法迫降纠倾技术中地基基础沉降量的估算方法。为在湿陷性黄土地基上倾斜建筑物迫降纠倾提供了参考依据。The experiment of forced settlement rectification through adjusting stiffness of subsoil body by injecting water method is introduced for a reduced-scale model of inclination building. The influence factors and the regularity of rectification are analyzed based on the experiment. According to the experimental results, the deepness range of adjusting stiffness of subsoil body and the calculation method of the foundation settlement are presented. This research has provided some reference for the forced settlement rectification project in the collapsible loess region.

关 键 词：湿陷性黄土 迫降纠倾 刚度软化法 试验 

分 类 号：TU475.3[建筑科学—结构工程] TU472[建筑科学—土工工程]