一种压电陶瓷弯曲元剪切波速测试装置的开发  

Development of a piezoceramic bender elements system for shear wave velocity

作　　者：张泉芳[1,2] 陈佩杭 姬美秀 黄博[2] 

机构地区：[1]浙江大学土木水利工程实验中心,浙江杭州310027 [2]浙江大学软弱土与环境土工教育部重点实验室,浙江杭州310027 [3]宁波市文物保护管理所,浙江宁波315010 [4]浙江省建筑科学设计研究院有限公司,浙江杭州310012

出　　处：《实验技术与管理》2008年第8期59-62,98,共5页Experimental Technology and Management

基　　金：国家自然科学基金资助项目(10372089);浙江省教育厅资助项目(20010572)

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 measure shear velocity and small- strain shear modulus of soil. A developed HX- 100 static/dynamic tfiaxial apparatus with the installation of bender elements to measure shear wave velocity of soil is introduced. Laboratory tests were car- fled 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.

关 键 词：压电陶瓷弯曲元 HX-100型动三轴仪 小应变剪切模量 

分 类 号：TU41[建筑科学—岩土工程]