NDLI: Determination of the slip surface by load data measurement system and strength reduction of 3D FEM

Content Provider	IEEE Xplore Digital Library
Author	Lei Wen-jie Zheng Ying-ren Feng Xia-ting Wang Qingniu
Copyright Year	2010
Description	Author affiliation: School of safety science and engineering, Henan Polytechnic University, Jiaozuo, China (Lei Wen-jie) \|\| The key lab of rock and soil mechanics, The Chinese Academy of Sciences, Wuhan, China (Feng Xia-ting) \|\| Department of engergy science and engineering, Henan Polytechnic University, Jiaozuo, China (Wang Qingniu) \|\| Department of millitary architecture engineering, Logistical Engineering University of PLA, Chongqing, China (Zheng Ying-ren)
Abstract	In order to know the variation of the slope stability under external slide thrust, the soil load cell was preferred on the test platform of large-scale physical model to measure the stress in the slope body for the first time. Adopting the method of limit analysis of FEM by step load, the The external slide thrust was enhanced step by step with the method of limit analysis of FEM by step loads, the limit condition of the slope body stabilized on the certain work condition could be gained in a certain timeto a certain size of the thrust. The results of the two analysis method were shown out as follows. As the slide thrust was enhanced step by step, the soil stress in slope body was enhanced increased steadily. When the external thrust was increased to a certain magnitude, the tendency in of development of the soil stress in the slope body was inflected varied, which disclosed the structural changes and the stability progress state changed from steadily state to failure in the inner body of the slope. From the curve of the soil stress vs. time, the time and the location that the slide surface formed could be determined. The method of limit analysis of FEM by step load could be used to estimate the shape of the slide surface. The shape computed by FEM was identical to the measurement by the soil load cell.
File Size	342901
File Format	PDF
ISBN	9781424463473
e-ISBN	9781424463497
DOI	10.1109/ICCET.2010.5485855
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis Ant colony optimization Stability Shape measurement slip surface determination soil stress measurement system Data engineering Terrain factors strength reduction of 3D FEM Soil measurements Programmable logic arrays Safety Stress measurement
Content Type	Text
Resource Type	Article

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