Shear Effects on the Anchorage Interfaces and Seismic Responses of a Rock Slope Containing a Weak Layer under Seismic Action

Long Zhe; Yan Zhi-xin; Liu Chun-bo

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Shear Effects on the Anchorage Interfaces and Seismic Responses of a Rock Slope Containing a Weak Layer under Seismic Action

机译：Shear Effects on the Anchorage Interfaces and Seismic Responses of a Rock Slope Containing a Weak Layer under Seismic Action

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The shear effects on the anchorage interfaces under seismic action is a key problem requiring urgent investigation in the field of rock and soil anchorages. In this paper, the model of rock slope with a weak layer was constructed by pouring, and the large-scale shaking table model test was completed. The shear strain on the anchorage interfaces and the acceleration of the slope were collected using built measurement systems. The shear effects on the two anchorage interfaces (a bolt-grout interface and a grout-rock interface) and seismic responses of the slope under seismic action were investigated. The distribution laws of the shear stress on the two anchorage interfaces along the axial direction of the bolt under seismic action were gained. The variations of the peak acceleration amplification coefficient on the slope surface, the magnitude, and the growth rate of peak shear stress on the anchorage interfaces under seismic action with different excitation directions and intensities were obtained. Furthermore, the positive relationship between the shear effect on the anchorage interfaces and the seismic response of slope was revealed. This study provides support for theoretical research, numerical simulation analysis, and aseismic design of rock and soil anchorages under dynamic conditions.

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来源
《Mathematical Problems in Engineering: Theory, Methods and Applications》 |2020年第14期|1424167.1-1424167.11|共11页
作者
Long Zhe; Yan Zhi-xin; Liu Chun-bo;
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作者单位

Lanzhou Univ, Sch Civil Engn & Mech, Lanzhou 730000, Peoples R China;

Lanzhou Univ, Sch Civil Engn & Mech, Lanzhou 730000, Peoples R China|Henan Univ Urban Construct, Sch Civil & Transportat Engn, Pingdingshan 467036, Peoples R China;

Henan Univ Urban Construct, Sch Civil & Transportat Engn, Pingdingshan 467036, Peoples R China;

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Shear Effects on the Anchorage Interfaces and Seismic Responses of a Rock Slope Containing a Weak Layer under Seismic Action

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