节点文献
海底沉积物剪切波速和衰减共振柱测试初探
Seabed sediment shear wave laboratory measurements by using resonant column test
【Author】 PAN Guo-fu;WU He-jin;WANG Xiao-Yan;LV Xiao-fei;Second Institute of Oceanography,State Oceanic Administration;
【机构】 国家海洋局第二海洋研究所;
【摘要】 共振柱试验是测试海底沉积物剪切波物理性质的一个有效手段。采用共振柱试验的方法对采自我国海域数个典型海底浅表层沉积物样品进行了剪切波速度和衰减系数测试试验,获得初步成果。测试样品的沉积物类型有粘土质粉砂、粉砂、粉砂质砂等,测试频率(共振频率)在11.5~27.5Hz之间不等,测得的剪切波速度在56.5~127.9m/s间,衰减系数在0.45~2.48d B/λ间,不同海区和不同类型海底沉积物的剪切性质有明显差异。要
【Abstract】 Resonant column test is one of effective means of sediment shear wave laboratory measurements and was used to measure the shear wave velocity end attenuation coefficients of seabed sediments from the East China Sea and the South China Sea in laboratory.Seabed sediments tested included clayey silt,silt and silty sand.Test frequency(resonant frequency) was 11.5~27.5Hz.The shear wave velocity was 56.5~127.9m/s and attenuation coefficients was 0.45~2.48 d B/λ.Test results show that both the shear wave velocity end attenuation coefficients of seabed sediments change greatly in different physiographic areas and different sediment types.
【Key words】 seabed sediments; resonant column test; shear wave velocity; shear wave attenuation coefficients;
- 【会议录名称】 2015’中国西部声学学术交流会论文集
- 【会议名称】2015’中国西部声学学术交流会
- 【会议时间】2015-08-16
- 【会议地点】中国四川雅安
- 【分类号】P733.2
- 【主办单位】中国声学学会微声学分会、中国声学学会物理声学分会、四川省声学学会、山东省声学学会、上海市声学学会、黑龙江省声学学会、浙江省声学学会、重庆市声学学会、陕西省声学学会、西安市声学学会