真空堆载联合预压法在某工程中的应用分析  

ANALYSIS OF VACUUM-SURCHARGE PRELOADING METHOD IN THE SOFT-BASE REINFORCEMENT PROJECT

作　　者：王华敬[1] 刘福臣[1] 杨庆刚[2] 张瑞宝 

机构地区：[1]山东农业大学水利土木工程学院,山东泰安271018 [2]东南大学交通学院,江苏南京210096 [3]新泰市青云街道办事处,山东新泰271200

出　　处：《山东农业大学学报（自然科学版）》2004年第3期442-445,共4页Journal of Shandong Agricultural University：Natural Science Edition

摘　　要：本文通过对某工程孔隙水压力及水平位移资料的观测 ,分析了通过真空—堆载联合预压法加固软上地基 ,土颗粒所受侧压力、渗流力、抗剪力的变化 ,揭示了真空—堆载联合预压法在地基水平位移方面的相互作用 .Based on the local pore water pressure and the lateral deformation from field vacuum-surcharge preloading instruction,seepage force,shear resistance and lateral soil pressure are studied.The mechanism of lateral deformation is revealed under the interaction of vacuum-surcharge preloading method.Some conclusions are drawn:seepage force caused by vacuum preloding method counteracts the force caused by preloading method,which is beneficial to the foundation's stability;groundwater table affects the reinforcement;vacuum-surcharge preloading method hazardsthe buildings’stability;groundwater table affects the reinforcement ;vacuum-surcharge preloading method hazards the buildings'stability in circumference.

关 键 词：预压法 真空堆载联合预压 地基 抗剪力 水平位移 侧压力 加固效果 应用分析 变化 影响 

分 类 号：S233.3[农业科学—农业机械化工程] TU472[农业科学—农业工程]