砂石桩加固浅层地基在生态修复工程中的应用  

Application of Sand-gravel Pile Reinforcement in Ecological Restoration Engineering

作　　者：张铭 程晓鸿 王晓强 姜赟 ZHANG Ming;CHENG Xiao-hong;WANG Xiao-qiang;JIANG Yun(Xiamen Baicheng Construction Investment Co.,Ltd,XiamenFujian 361000China;CCCC Shanghai Dredging Co.,Ltd,Shanghai 200002 China;School of Transportation,Southeast University,Nanjing Jiangsu211189China)

机构地区：[1]厦门百城建设投资有限公司,福建厦门361000 [2]中交上海航道局有限公司,上海200002 [3]东南大学交通学院,江苏南京211189

出　　处：《江苏建筑》2021年第4期90-93,113,共5页Jiangsu Construction

摘　　要：结合工程实例,在生态修复工程中,分析施工地区的地层土质情况,进而采用振冲砂石桩法对淤泥土层进行地基处理,介绍了砂石桩加固地基的原理和施工工艺。采用标贯试验评价了地基的承载效果,结果表明:采用振冲砂石桩加固淤泥质软土地基,对提高地基的承载力有明显效果,减小了复合地基整体变形,有利于生态和环保。该案列为类似的生态修复工程中应用砂石桩复合地基提供了参考。Combined with an engineering example,the soil quality of the construction area was analyzed in the ecological restoration project.The ground improvement of silt soil layer was carried out by the method of vibrating sand column and the principle and construction technology were introduced.The bearing quality of foundation was evaluated by standard penetration test.The results showed that using vibrating sand column to strengthen muddy soft soil foundation is effective to improve the bearing capacity of the foundation.The overall deformation of the composite foundation was reduced.The case was beneficial to ecology and environmental protection and it could be listed as a reference for the application of gravel pile composite foundation in similar ecological restoration projects.

关 键 词：砂石桩加固 生态修复工程 软土地基 地基承载力 

分 类 号：TU472.32[建筑科学—结构工程]