摘要
通过对散体材料堆竖向加载的正交试验,采用极差分析和层次分析法分析不同的堆积高度,粒径大小,及加载速率下对散体材料堆抵抗竖向荷载破坏能力的影响.研究结果表明:堆积高度对抵抗力影响很大,粒径大小和加载速率对抵抗力影响较小,抵抗力随堆积高度增大而减小,随粒径大小和加载速率增大而增大.
By the vertical loaded orthogonal of the granular materials, under the different heights, parti- cle sizes, and loading rates, the range analysis and AHP analysis are used to determine the impact of the a- bility of the granular materials on the resistance to vertical load damage. The results show that the height has a bigger impact on resistance than particle size and loading rate. As the height increases,the resistance decreases ;as the particle size and loading rate increase, the resistance also increases.
出处
《甘肃科学学报》
2009年第3期151-154,共4页
Journal of Gansu Sciences
基金
国家自然科学基金(10402112)
兰州理工大学科研专项基金(SB04200701)
