一种压电陶瓷弯曲元剪切波速测试装置的开发

英文篇名：Development of a piezoceramic bender elements system for shear wave velocity
中文刊名：实验技术与管理
英文刊名：Experimental Technology and Management
作者：张泉芳 ; 陈佩杭 ; 姬美秀 ; 黄博
英文作者：ZHANG Quan-fang 1 ; CHEN Pei-hang2 ; JI Mei-xiu3 ; HUANG Bo1(1.Laboratory Center of Civil and Hydrologic Engineering ; Zhejiang University ; Hangzhou 310027 ; China ; 2.MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering ; Zhejiang University ; Hangzhou 310027 ; China ; 3.Ningbo Municipal Institute of Cultural Relices Protection and Management ; Ningbo 315010 ; China ; 4.Zhejiang Academy of Building Research & Design Co.Ltd. ; Hangzhou 310012 ; China)
中文关键词：压电陶瓷弯曲元 ; HX-100型动三轴仪 ; 小应变剪切模量
英文关键词：piezoceramic bender elements ; HX-100 triaxial apparatus ; small-strain shear modulus
出版日期：2008-08-20
机构：浙江大学土木水利工程实验中心;宁波市文物保护管理所;浙江省建筑科学设计研究院有限公司;浙江大学软弱土与环境土工教育部重点实验室;
年：2008
期：08
出版单位：实验技术与管理

摘要

压电陶瓷弯曲元是一种多功能传感器,在国外已经被应用于测试土的剪切波速和研究土的工程性质。该文介绍了在HX-100型动三轴仪上开发的压电陶瓷弯曲元剪切波速的测试装置,并对多种不同物理性质的试样,用弯曲元测试装置进行试验,试验结果与共振柱仪室内试验的结果非常吻合。同时,利用此试验装置,参与了国际平行试验,并获得好评。
Piezoceramic bender elements are versatile transducers and are widely installed in soil instruments to mea-sure shear velocity and small-strain shear modulus of soil.A developed HX-100 static/dynamic triaxial apparatus with the installation of bender elements to measure shear wave velocity of soil is introduced.Laboratory tests were carried out on several kinds of soils,and the tests results show that results obtained by bender elements coincide with those collected by Drnevich Long-Tor apparatus very well.With this apparatus,we took part in international parallel tests organized by TC-29 aimed at improving element bender testing technique and obtained good reputation.

引文

[1]黄博.粉土和粉砂的动力特性及地震液化研究[D].杭州:浙江大学,2000.
    [2]Shirley D J,Hampton L D.Shear-wave measurement in laboratorysediments[J].Journal of acoustical society of America,1978,63(2):607-613.
    [3]Brunson B A,Johnson R K.Laboratory measurements of shear waveattenuation in saturated sand[J].Journal of acoustical society ofAmerica,1980,68(5):1371-1375.
    [4]Schultheiss P J.Simultaneous measurements of P and S wave veloci-ties during conventional laboratory soil testing procedures[J].Ma-rine Geotechnical,1981,4(4):343-367.
    [5]Dyvik R,Madshus C.Lab measurements ofGmaxusing bender ele-ments[C]//Advances in the art of testing soils under cyclic con-ditions,New York:ASCE,1985:186-196.
    [6]De Alba P,Baldwin K C,Janno V,et al.Elastic-wave velocitiesand liquefaction potential[J].Geotechnical Testing Journal,1984,7(2):77-88.
    [7]De Alba P,Baldwin K C.Use of bender elements in soil dynamicsexperiments[C]//Recent advances in instrumentation,data ac-quisition and testing in soil dynamics,Geotechnical special publica-tion,New York:ASCE,1991:86-101.