A new method is presented for silo classification using the rupture plane in the storage. The proposed method is based on the formula of rupture plane orientation determined by the aspect ratio of specified silos and ...A new method is presented for silo classification using the rupture plane in the storage. The proposed method is based on the formula of rupture plane orientation determined by the aspect ratio of specified silos and involves the effects of the conical angle of the storage surface, so it can deal with two cases： the conical angle of the storage surface and the flat storage surface. Compared with the two popular methods based on the silo-aspect ratio and the silo rupture plane, respectively, in current engineering design, the new method can give a range of critical aspect ratios to classify deep silos and squat silos according to the conical angle of the storage surface or the fiat storage surface. Moreover, the range covers the critical aspect ratios obtained from the existing classification methods including the Chinese code based on silo aspect ratios, the German code, Reimbert brothers＇ definition and Liang et al. ＇s definition, so it is a more general method to classify silos and the existing methods can be viewed as special cases of the presented method.展开更多
With the further deepening of economic integration, Yunnan food security problems have become increasingly prominent. The construction of highland granary is an effective way to comply with the important strategic pla...With the further deepening of economic integration, Yunnan food security problems have become increasingly prominent. The construction of highland granary is an effective way to comply with the important strategic plan of China and allevi- ate the food security problems in Yunnan. In this paper, SWOT （Strengths Weak- nesses Opportunities Threats） analysis was used to analyze the advantages and disadvantages, opportunities and challenges encountered in the construction of Yun- nan plateau granary, and corresponding countermeasures and suggestions were proposed.展开更多
基金The National Key Technologies R & D Program during the 11th Five-Year Plan Period(No.2006BAD08B01)the Program for New Century Excellent Talents in Universities of Henan Province(No.2005HANCET-13)
文摘A new method is presented for silo classification using the rupture plane in the storage. The proposed method is based on the formula of rupture plane orientation determined by the aspect ratio of specified silos and involves the effects of the conical angle of the storage surface, so it can deal with two cases： the conical angle of the storage surface and the flat storage surface. Compared with the two popular methods based on the silo-aspect ratio and the silo rupture plane, respectively, in current engineering design, the new method can give a range of critical aspect ratios to classify deep silos and squat silos according to the conical angle of the storage surface or the fiat storage surface. Moreover, the range covers the critical aspect ratios obtained from the existing classification methods including the Chinese code based on silo aspect ratios, the German code, Reimbert brothers＇ definition and Liang et al. ＇s definition, so it is a more general method to classify silos and the existing methods can be viewed as special cases of the presented method.
基金Supported by the Startup Fund of Yunnan Agricultural University(Accounting no.:A2002291)the Key Discipline Project for Agricultural Insects and Pests Control of Yunnan Agricultural University~~
文摘With the further deepening of economic integration, Yunnan food security problems have become increasingly prominent. The construction of highland granary is an effective way to comply with the important strategic plan of China and allevi- ate the food security problems in Yunnan. In this paper, SWOT （Strengths Weak- nesses Opportunities Threats） analysis was used to analyze the advantages and disadvantages, opportunities and challenges encountered in the construction of Yun- nan plateau granary, and corresponding countermeasures and suggestions were proposed.
