東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Application of piezoelectric sensors...

Fu, Lei.

Linked to FindBook

Google Book

Amazon

博客來

Application of piezoelectric sensors in soil property determination.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Application of piezoelectric sensors in soil property determination./
Author:	Fu, Lei.
Description:	182 p.
Notes:	Source: Dissertation Abstracts International, Volume: 65-08, Section: B, page: 4166.
Contained By:	Dissertation Abstracts International65-08B.
Subject:	Engineering, Civil. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3146441
ISBN:	0496040898

Application of piezoelectric sensors in soil property determination.
Fu, Lei.

Application of piezoelectric sensors in soil property determination. - 182 p.

Source: Dissertation Abstracts International, Volume: 65-08, Section: B, page: 4166.

Thesis (Ph.D.)--Case Western Reserve University, 2004.

Piezoceramic as a smart or adaptive material has been widely used in engineering measurement and control. When used in soil testing, the material can work as a wave transmitter or a wave receiver. Among the piezoelectric sensors, the bender element and the extender element are the most widely used. While the bender element is used to generate and receive shear waves, the extender element is used to produce and detect P-waves.

ISBN: 0496040898Subjects--Topical Terms:

783781
Engineering, Civil.

Application of piezoelectric sensors in soil property determination.
LDR:03012nmm 2200313 4500 001 1839937
005 20050714101054.5
008 130614s2004 eng d
020 $a 0496040898
035 $a (UnM)AAI3146441
035 $a AAI3146441
040 $a UnM $c UnM
100 1 $a Fu, Lei. $3 736373
245 1 0 $a Application of piezoelectric sensors in soil property determination.
300 $a 182 p.
500 $a Source: Dissertation Abstracts International, Volume: 65-08, Section: B, page: 4166.
500 $a Adviser: Xiangwu Zeng.
502 $a Thesis (Ph.D.)--Case Western Reserve University, 2004.
520 $a Piezoceramic as a smart or adaptive material has been widely used in engineering measurement and control. When used in soil testing, the material can work as a wave transmitter or a wave receiver. Among the piezoelectric sensors, the bender element and the extender element are the most widely used. While the bender element is used to generate and receive shear waves, the extender element is used to produce and detect P-waves.
520 $a One application of piezoelectric sensors is to measure shear wave velocities in centrifuge tests. Measurement techniques for both dry and saturated specimens were developed. A series of centrifuge model tests were performed. Bender element tests were carried out during the spin-up, spin-down, and in-flight stages of a centrifuge. Dynamic centrifuge tests were conducted on both dry and saturated models to investigate the influence of earthquake motions. Shear wave traveling times, accelerations, and pore water pressures were monitored during the tests. Based on the test results presented in this study, the current shear wave velocity-based liquefaction evaluation criteria were examined.
520 $a Piezoelectric sensors were also used to develop a new piezo cone penetrometer. The piezo cone penetrometer is equipped with one set of bender elements and one set of extender elements. The equipment is designed for the purposes of measuring stiffness of the subgrade and the sublayer of a pavement in the field. Compared to the conventional CBR test, this method is quick and simple as well as being theoretically sound. The results in the laboratory have shown it to be a promising tool.
520 $a Finally, a large odometer was developed for testing gravelly materials. The advantages of the device include that it can measure the stiffness of a soil with large grain sizes and can measure moduli in different planes.
520 $a In conclusion, measurement of soil properties using piezoelectric sensors is direct and accurate. The technique is theoretically sound. The application of the technique is limited to low strain levels, which are in the elastic range of soil deformations.
590 $a School code: 0042.
650 4 $a Engineering, Civil. $3 783781
690 $a 0543
710 2 0 $a Case Western Reserve University. $3 1017714
773 0 $t Dissertation Abstracts International $g 65-08B.
790 1 0 $a Zeng, Xiangwu, $e advisor
790 $a 0042
791 $a Ph.D.
792 $a 2004
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3146441