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Artificial neural network based inverse design method for circular sliding slopes 被引量:4
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作者 丁德馨 张志军 《Journal of Central South University of Technology》 EI 2004年第1期89-92,共4页
Current design method for circular sliding slopes is not so reasonable that it often results in slope (sliding.) As a result, artificial neural network (ANN) is used to establish an artificial neural network based inv... Current design method for circular sliding slopes is not so reasonable that it often results in slope (sliding.) As a result, artificial neural network (ANN) is used to establish an artificial neural network based inverse design method for circular sliding slopes. A sample set containing 21 successful circular sliding slopes excavated in the past is used to train the network. A test sample of 3 successful circular sliding slopes excavated in the past is used to test the trained network. The test results show that the ANN based inverse design method is valid and can be applied to the design of circular sliding slopes. 展开更多
关键词 circular sliding slopes artificial neural network inverse design
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Experimental study on slope sliding and debris flow evolution with and without barrier 被引量:1
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作者 Ji-kun Zhao Dan Wang Jia-hong Chen 《Water Science and Engineering》 EI CAS CSCD 2015年第1期68-77,共10页
A constitutive model on the evolution of debris flow with and without a barrier was established based on the theory of the Bingham model. A certain area of the Laoshan Mountain in Nanjing, Jiangsu Province, in China w... A constitutive model on the evolution of debris flow with and without a barrier was established based on the theory of the Bingham model. A certain area of the Laoshan Mountain in Nanjing, Jiangsu Province, in China was chosen for experimental study, and the slope sliding and debris flow detection system was utilized. The change curve of the soil moisture content was attained, demonstrating that the moisture content of the shallow soil layer increases faster than that of the deep soil layer, and that the growth rate of the soil moisture content of the steep slope is large under the first weak rainfall, and that of the gentle slope is significantly affected by the second heavy rainfall. For the steep slope, slope sliding first occurs on the upper slope surface under heavy rainfall and further develops along the top platform and lower slope surface, while under weak rainfall the soil moisture content at the lower part of the slope first increases because of the high runoff velocity, meaning that failure occurring there is more serious. When a barrier was placed at a high position on a slope, debris flow was separated and distributed early and had less ability to carry solids, and the variation of the greatest depth of erosion pits on soil slopes was not significant. 展开更多
关键词 Debris flow slope sliding Geological disaster Time domain reflectometry (TDR) technique Detection system Constitutive model
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Influence of depth-thickness ratio of mining on the stability of a bedding slope with its sliding surface in concave deformation 被引量:1
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作者 Zhang Yuning Tang Jianxin +1 位作者 Li Guodong Teng Junyang 《International Journal of Mining Science and Technology》 SCIE EI CSCD 2016年第6期1117-1123,共7页
In order to study the influence of depth-thickness ratio on bedding slope stability, whose sliding surface is flexural concave in shape under mining conditions, this paper aims to study the characteristics ofdeformari... In order to study the influence of depth-thickness ratio on bedding slope stability, whose sliding surface is flexural concave in shape under mining conditions, this paper aims to study the characteristics ofdeformarion and damage of bedding sliding with depth-thickness ratios of 200:1,150:1,120:1,100:1 and 50:1 by adopting numerical simulation analysis software combined with laboratory-made "under the influence of mining variable sliding surface slope similar simulation test bed", and to propose identification methods for slope stability under the infuence of mining. The results show that mining activities under the slope reduce slope stability. With a decrease in the mining depth ratio, the influence of mining on the slope increases gradually, and the damage to the slope gradually expands, the stability of the slope grad- ually reduces, fracture occurs on the slope toe and the central fissure gradually develops to the surface, and reaches slide threshold when the depth-thickness ratio is 50:1. 展开更多
关键词 Depth-thickness ratio Bedding slope Sliding surface Concave deflection surface Mining influence Similar simulation
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