北京园博园回填土地基强夯振动效应测试研究  

Study on Test for Dynamic Compaction Vibration Effect of Backfill Soil Foundation in Beijing Garden&Flower EXPO Park

作　　者：袁鸿鹄[1] 刘爱友[1] 姜晶[1] 李云鹏 

机构地区：[1]北京市水利规划设计研究院,北京100048 [2]中国石油大学机械与储运工程学院安全工程系,北京102249

出　　处：《资源环境与工程》2013年第4期541-545,共5页Resources Environment & Engineering

摘　　要：强夯是远离居民区进行地基加固处理的有效方法。依托北京园博园水质净化工程,对房渣土地基强夯加固的动力效应,以及强夯振动对周围结构及环境的影响开展分析研究。根据强夯加固地基的基本原理,设计现场强夯振动测试方案,并实施强夯效应的实时测试,获得地层土体质点振动速度与振动加速度的变化规律曲线,建立了强夯振动速度与速度传播距离间的关系,以此可方便获取强夯区建筑结构的安全距离,此研究方法及思路可为类似工程提供参考。Dynamic compaction is an effective method to reinforcing foundation away from residential areas. Based on the water purification engineering of Beijing Garden＆ Flower EXPO Park,the dynamic effect of compaction consolidation on brick rubbish foundation, and influence of dynamic compaction vibration on the surrounding structures and environment are analyzed in the paper. According to the basic principles of foundation consolidation by dynamic compaction, the authors design the testing scheme for dynamic compaction vibration, and carry out the real-time testing of dynamic compaceffect, moreover, the changing rule curve for vibration velocity and vibration acceleration of soil is obtained to establish the relationship between vibration velocity of dynamic compaction and velocity propagation distance,which can obtain easily the safe distance of buildings in dynamic compaction area. The research methods and ideas in this paper can provide a reference for similar projects.

关 键 词：强夯 测试 振动 安全距离 

分 类 号：TU435[建筑科学—岩土工程]