|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effect of graph generation on slope stability analysis based on graph theory显示文摘Limit equilibrium method(LEM) and strength reduction method(SRM) are the most widely used methods for slope stability analysis. However, it can be noted that they both have some limitations in practical application. In the LEM, the constitutive model cannot be considered and many assumptions are needed between slices of soil/rock. The SRM requires iterative calculations and does not give the slip surface directly. A method for slope stability analysis based on the graph theory is recently developed to directly calculate the minimum safety factor and potential critical slip surface according to the stress results of numerical simulation. The method is based on current stress state and can overcome the disadvantages mentioned above in the two traditional methods. The influences of edge generation and mesh geometry on the position of slip surface and the safety factor of slope are studied, in which a new method for edge generation is proposed, and reasonable mesh size is suggested. The results of benchmark examples and a rock slope show good accuracy and efficiency of the presented method. | Enpu Li Xiaoying Zhuang Wenbo Zheng Yongchang Cai | 2014 | Journal of Rock Mechanics and Geotechnical Engineering2014，6，4： | 2 |
| 2 | A nanoscale qualitative study on the role of sodium hydrosulfide in oxidized carrollite flotation显示文摘The surface species transformation of oxidized carrollite processing with NaHS and KBX was investigated.Flotation and contact angle tests indicate that the combination of NaHS and KBX takes a better flotation performance than adding NaHS or KBX alone.Thermodynamic analysis,X-ray photoelectron spectroscopy(XPS) and Fourier transform infrared(FTIR) results confirm the stronger chemisorption of KBX occurs on the oxidized carrollite surface with NaHS,which is beneficial to remove the cobalt oxides,thus contributing to the superior floatability.Interestingly,less elemental sulfur was observed on the carrollite surface as the interaction of NaHS and KBX than adding NaHS alone.It suggests that elemental sulfur is not the main contributor to the restored floatability of oxidized carrollite through sulfidisation.This study provided a new perspective to correlate the surface species with xanthate adsorption and oxidized carrollite flotation through determining the various intermediate products. | Haiping Zhao Renman Ruan Xiaopeng Niu Li Li Enpu Zhang | 2021 | International Journal of Mining Science and Technology2021，31，6： | 0 |
| 3 | Chinese Landscape Photo Exhibition Is on Display in Benin显示文摘On March 21, 2008, a photo exhibition on Chinese ethnic sceneries, entitled 'Illusionary Image, True Sentiment', | liu anping Yang Enpu and li Wenjun | 2008 | China & The World Cultural Exchange2008，74，5： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员