Results 21 to 30 of about 8,225,610 (293)
Examination of a novel wavelet based approach for bender element testing [PDF]
, 2008 Presented at the 4th Symposium on Bridge & Infrastructure Research in Ireland, 4-5 December 2008, Galway, IrelandAccurate determination of shear wave arrival time using bender elements may be severely affected by a combination of near field effects and ...
Donohue, Shane +2 more
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Experimental study on small-strain shear modulus of calcareous sand
Yantu gongcheng xuebao, 2022 The small-strain shear modulus is an important parameter indicating soil stiffness in geotechnical engineering. In this study, the multidirectional bender element technique is used to investigate the small-strain shear modulus of calcareous sand from ...
SHI Jin-quan 1, 2, 3, XIAO Yang 1, 2, 3, LIU Han-long 1, 2, 3, Wim Haegeman 4
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Case Studies in Construction Materials, 2023 This study aims to perform experiments to determine both initial shear modulus and unconfined compressive strength of Bangkok soft clay improved by the ordinary Portland cement (OPC) and fly ash (FA).
Aruz Petcherdchoo +2 more
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Graz Reading Comprehension Test
, 2023 Der GraLeV ist ein Verfahren zur Messung des Leseverständnisses (auf Wort-, Satz- und Textebene) von Kindern der dritten und vierten Schulstufe. Er besteht aus 4 Subtests mit insgesamt 38 Itemsets. Der GraLeV weist eine interne Konsistenz von Cronbachs α
Riedl, S. +4 more
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Buildings, 2023 Civil engineering faces a substantial challenge when dealing with soft and compressible clayey soils. Conventional soil stabilization techniques involving ordinary Portland cement (OPC) result in notable CO2 emissions. This study explores the utilization
Arailym Mustafayeva +5 more
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EVALUATION OF DEFORMATION CHARACTERISTICS OF SOIL BY BENDER ELEMENT TEST
Doboku Gakkai Ronbunshu, 2003 ベンダーエレメント試験 (以下BE試験) の受信波によって, 土の減衰振動ならびに共振を観察することができるという仮定に基づき, 共振法土質試験の理論を援用して2通りの方法でせん断弾性係数および減衰比を求める手法を示している. 粘土, 泥炭試料についての実験結果からこれらの方法によって求めたせん断弾性係数の値は, せん断波の到達時刻を受信波のピーク点で定義した場合よりは (試料によって3～7倍) 大きな値となること, また, 減衰比についてはBE試験による既往の報告例はないが, 繰返し三軸試験によって従来報告されている値と近いことを示している. これらの結果をふまえ, 従来の方法に加えて本研究で提案する2通りの方法を併用することにより, BE試験の活用範囲がさらに広がることを示唆している.
Toshihiro OGINO +3 more
openaire +2 more sources
Studies on a Piezoelectric Cylindrical Transducer for Borehole Dipole Acoustic Measurements
Applied Sciences, 2021 In this article, a novel design of a piezoelectric dipole transducer is proposed for formation acoustic velocity measurement in the vicinity of a borehole with a frequency range of 0.4–6 kHz.
Yinqiu Zhou, Xiuming Wang, Yuyu Dai
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Analysis of bender element test interpretation using the discrete element method
Granular Matter, 2015 While bender element testing is now well-established as a laboratory technique to determine soil stiffness, a robust technique to interpret the data remains elusive. A discrete element method (DEM) model of a face-centred cubic packing of uniform spheres was created to simulate bender element tests to investigate this test from a fundamental ...
O’Donovan, J. +3 more
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Transportation EngineeringThe bender element (BE) test is widely employed in geotechnical engineering for measuring the shear wave velocity (Vs) and, consequently, the small-strain shear modulus (G0), due to its ease of application, integration into geotechnical devices, and ...
Ionuţ Dragoş Moldovan +3 more
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Yantu gongcheng xuebaoTo enable real-time monitoring and evaluation of the soil stiffness characteristics, a bender element array system suitable for model testing has been developed. The system is based on a PLC control unit and employs a multi-channel switching architecture
HU Anfeng 1, 2, CHEN Yiyang 1, 2, WU Juntao 1, 2, WANG Jinchang 3, XIAO Zhirong 4
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