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.
出处
《资源环境与工程》
2013年第4期541-545,共5页
Resources Environment & Engineering
关键词
强夯
测试
振动
安全距离
dynamic compaction
test
vibration
safe distance
