Dynamic behavior of soil anchorage landslide at different frequencies

To reveal the dynamic behavior of soil anchorage landslide and the mechanical feature of anchors at different frequencies, a shaking table test was performed on a 1:7 scale soil anchorage landslide. Actual seismic wave measured from the Wenchuan earthquake, sinusoidal waves with different frequencie...

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Main Authors: Nan Li, Banqiao Wang, Yuming Men, Nina Liu, Xueling Liu, Ou Gao
Format: Article
Language:English
Published: Taylor & Francis Group 2019-01-01
Series:Geomatics, Natural Hazards & Risk
Subjects:
Online Access:http://dx.doi.org/10.1080/19475705.2018.1521878
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author Nan Li
Banqiao Wang
Yuming Men
Nina Liu
Xueling Liu
Ou Gao
author_facet Nan Li
Banqiao Wang
Yuming Men
Nina Liu
Xueling Liu
Ou Gao
author_sort Nan Li
collection DOAJ
description To reveal the dynamic behavior of soil anchorage landslide and the mechanical feature of anchors at different frequencies, a shaking table test was performed on a 1:7 scale soil anchorage landslide. Actual seismic wave measured from the Wenchuan earthquake, sinusoidal waves with different frequencies were applied to the model. The acceleration response of the anchorage landslide in frequency domain was analyzed, and the strain distribution of anchors at 1.15 Hz sinusoidal wave and 3.45 Hz sinusoidal wave were investigated separately. The testing results indicate that the anchorage landslide is sensitive not only to higher frequencies (near the natural frequency of the landslide) at low loading amplitude but also to ultra-low frequencies at high loading amplitude. At ultra-low frequency 1.15 Hz sinusoidal wave, when the loading amplitude is low and medium (0.05-0.6 g), the bottom anchor bears greater force. But when the loading amplitude is high (0.8 g), the top anchor bears most of the anchorage force. At 3.45 Hz sinusoidal wave that near the natural frequency of the landslide, no matter how the loading amplitude, the top anchor plays significant role, especially at higher loading amplitude (0.3-0.6 g).
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spelling doaj.art-48158b3faabb4cde9ce3e010465271c12022-12-22T00:15:57ZengTaylor & Francis GroupGeomatics, Natural Hazards & Risk1947-57051947-57132019-01-0110127128610.1080/19475705.2018.15218781521878Dynamic behavior of soil anchorage landslide at different frequenciesNan Li0Banqiao Wang1Yuming Men2Nina Liu3Xueling Liu4Ou Gao5Chang’an UniversityChang’an UniversityChang’an UniversityChang’an UniversityChang’an UniversityChang’an UniversityTo reveal the dynamic behavior of soil anchorage landslide and the mechanical feature of anchors at different frequencies, a shaking table test was performed on a 1:7 scale soil anchorage landslide. Actual seismic wave measured from the Wenchuan earthquake, sinusoidal waves with different frequencies were applied to the model. The acceleration response of the anchorage landslide in frequency domain was analyzed, and the strain distribution of anchors at 1.15 Hz sinusoidal wave and 3.45 Hz sinusoidal wave were investigated separately. The testing results indicate that the anchorage landslide is sensitive not only to higher frequencies (near the natural frequency of the landslide) at low loading amplitude but also to ultra-low frequencies at high loading amplitude. At ultra-low frequency 1.15 Hz sinusoidal wave, when the loading amplitude is low and medium (0.05-0.6 g), the bottom anchor bears greater force. But when the loading amplitude is high (0.8 g), the top anchor bears most of the anchorage force. At 3.45 Hz sinusoidal wave that near the natural frequency of the landslide, no matter how the loading amplitude, the top anchor plays significant role, especially at higher loading amplitude (0.3-0.6 g).http://dx.doi.org/10.1080/19475705.2018.1521878anchorsoil anchorage landslidedynamic behaviorfrequencyshaking table test
spellingShingle Nan Li
Banqiao Wang
Yuming Men
Nina Liu
Xueling Liu
Ou Gao
Dynamic behavior of soil anchorage landslide at different frequencies
Geomatics, Natural Hazards & Risk
anchor
soil anchorage landslide
dynamic behavior
frequency
shaking table test
title Dynamic behavior of soil anchorage landslide at different frequencies
title_full Dynamic behavior of soil anchorage landslide at different frequencies
title_fullStr Dynamic behavior of soil anchorage landslide at different frequencies
title_full_unstemmed Dynamic behavior of soil anchorage landslide at different frequencies
title_short Dynamic behavior of soil anchorage landslide at different frequencies
title_sort dynamic behavior of soil anchorage landslide at different frequencies
topic anchor
soil anchorage landslide
dynamic behavior
frequency
shaking table test
url http://dx.doi.org/10.1080/19475705.2018.1521878
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AT yumingmen dynamicbehaviorofsoilanchoragelandslideatdifferentfrequencies
AT ninaliu dynamicbehaviorofsoilanchoragelandslideatdifferentfrequencies
AT xuelingliu dynamicbehaviorofsoilanchoragelandslideatdifferentfrequencies
AT ougao dynamicbehaviorofsoilanchoragelandslideatdifferentfrequencies