A Modified Newmark Method for Calculating Permanent Displacement of Seismic Slope considering Dynamic Critical Acceleration
Newmark permanent displacement is an important index for evaluating seismic slope stability, which has been widely used in recent years. The traditional Newmark sliding method assumes that the critical acceleration is constant but does not consider the inhomogeneity and dynamic reduction process of...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/9782515 |
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| _version_ | 1832558738191417344 |
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| author | Yulong Cui Aijuan Liu Chong Xu Jun Zheng |
| author_facet | Yulong Cui Aijuan Liu Chong Xu Jun Zheng |
| author_sort | Yulong Cui |
| collection | DOAJ |
| description | Newmark permanent displacement is an important index for evaluating seismic slope stability, which has been widely used in recent years. The traditional Newmark sliding method assumes that the critical acceleration is constant but does not consider the inhomogeneity and dynamic reduction process of shear strength on the sliding surface, presumably leading to underestimation of the permanent displacement. In this paper, this problem is analyzed, and a new method for calculating permanent displacement of seismic slope considering dynamic critical acceleration is proposed, in which the Monte Carlo simulation is used. Example calculations indicate that this approach permits to show the dropping cohesion and the dynamic critical acceleration of the slide block during the earthquake time history. The improved method for calculating seismic slope permanent displacement presented in this paper solves the problem that the calculated value from the Newmark sliding method is smaller than the real value and is a useful improvement. |
| format | Article |
| id | doaj-art-8963ab4fdc9b4b12a8398fdbd76b4d52 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-8963ab4fdc9b4b12a8398fdbd76b4d522025-02-03T01:31:37ZengWileyAdvances in Civil Engineering1687-80861687-80942019-01-01201910.1155/2019/97825159782515A Modified Newmark Method for Calculating Permanent Displacement of Seismic Slope considering Dynamic Critical AccelerationYulong Cui0Aijuan Liu1Chong Xu2Jun Zheng3School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, ChinaChina Three Gorges Corporation, Beijing 100038, ChinaInstitute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, ChinaDepartment of Civil Engineering, Zhejiang University, Hangzhou 310058, ChinaNewmark permanent displacement is an important index for evaluating seismic slope stability, which has been widely used in recent years. The traditional Newmark sliding method assumes that the critical acceleration is constant but does not consider the inhomogeneity and dynamic reduction process of shear strength on the sliding surface, presumably leading to underestimation of the permanent displacement. In this paper, this problem is analyzed, and a new method for calculating permanent displacement of seismic slope considering dynamic critical acceleration is proposed, in which the Monte Carlo simulation is used. Example calculations indicate that this approach permits to show the dropping cohesion and the dynamic critical acceleration of the slide block during the earthquake time history. The improved method for calculating seismic slope permanent displacement presented in this paper solves the problem that the calculated value from the Newmark sliding method is smaller than the real value and is a useful improvement.http://dx.doi.org/10.1155/2019/9782515 |
| spellingShingle | Yulong Cui Aijuan Liu Chong Xu Jun Zheng A Modified Newmark Method for Calculating Permanent Displacement of Seismic Slope considering Dynamic Critical Acceleration Advances in Civil Engineering |
| title | A Modified Newmark Method for Calculating Permanent Displacement of Seismic Slope considering Dynamic Critical Acceleration |
| title_full | A Modified Newmark Method for Calculating Permanent Displacement of Seismic Slope considering Dynamic Critical Acceleration |
| title_fullStr | A Modified Newmark Method for Calculating Permanent Displacement of Seismic Slope considering Dynamic Critical Acceleration |
| title_full_unstemmed | A Modified Newmark Method for Calculating Permanent Displacement of Seismic Slope considering Dynamic Critical Acceleration |
| title_short | A Modified Newmark Method for Calculating Permanent Displacement of Seismic Slope considering Dynamic Critical Acceleration |
| title_sort | modified newmark method for calculating permanent displacement of seismic slope considering dynamic critical acceleration |
| url | http://dx.doi.org/10.1155/2019/9782515 |
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