摘要
研究了有序对称排列二维颗粒堆积体的传力规律,应用随机理论建立了力的传递模型,给出了相应的力传导-扩散方程。不同于连续介质弹性静力学的椭圆型方程,该方程为反映散体结构传力特性的一种抛物型传导方程。通过对所建模型及方程的应用,揭示了颗粒介质传力的“拱效应”和“双峰现象”,与实验结果在定性上符合良好。
The force transferring rule of contact forces inside two-dimensional granular packs arranged symmetrically and orderly was investigated. Using the probabilistic method, a force transferring model was constructed and a corresponding transmission equation was put forth, which were not the traditional elasticity theory predictions a parabolic equation but a parabolic equation supporting a granular description. The model and equation reveal ‘arching effect＇ and ‘two peak phenomenon＇ resulted from arching effect＇ and was consistent with the experimental results qualitatively.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2006年第7期881-885,共5页
Chinese Journal of Geotechnical Engineering
基金
甘肃省自然科学基金资助项目(3ZS042-B25-003)
甘肃省建设厅科学基金资助项目(JK2004-23)
