摘要
大型混凝土构件 (如高层建筑基础的地梁、桩承台等 )在施工过程中可能造成局部松散、空洞、蜂窝或离析等质量问题 ,监理人员希望在不破坏混凝土构件的情况下 ,获得混凝土构件的完整性信息 .通过利用地震映像法 (又称地震共偏移距法 )在裂缝、空洞模型上的试验 ,获得了存在异常体时 ,地震时间剖面的波形特征 .模型实验和在两个高层建筑工地的实测工作证明 :在合理选择震源及各种测量参数的条件下 。
Cavity and honeycomb may result from the construction of concrete elements, such as the column base and ground base beam of a high building. Seismic image profiling method(common offset profiling) is used to verify the integrity of the concrete construction elements. By model experiments, the anomalous characteristics of cracks and cavities on seismic image profiling are obtained, and the influences of offset and other survey parameters on the seismic image profiling are studied. The model experiments and practical application show that by careful selection of seismic source and survey parameters, the seismic image profiling method can be used effectively to verify the integrity of concrete construction elements.
出处
《桂林工学院学报》
2002年第2期133-136,共4页
Journal of Guilin University of Technology
关键词
地震映像
混凝土构件
地梁
桩承台
空洞
蜂窝
离析
seismic image profiling
concrete elements
ground base beam
column base
