林木根系与土体相互作用的有限元数值模拟中几个关键-水土保持研究.pdfVIP

16 4 Vol. 16, No. 4 2009 8 Research of Soil and Water Conservation Au . , 2009 * 1 2 3 宋维峰, 陈丽华 , 刘秀萍 ( 1. , 650224; 2. , 100083; 3. , 050021) : , : ; ; ; : S718. 516 : A : 1005-3409( 2009) 04-0006-08 Discussion of Several Key Problems on Fi nite El ement Numerical Analysis of Root-Soil Interacti on 1 2 3 SONG Wei-fen , CHEN L-i hua , LIU Xiu-pin (1. Dep artment of Environmental Science and Engineering , Southw est Forestry College, K unming 650224, China; 2. College of Soil and Water Conserv ation, eij ing Forestry University, eij ing 100083, China; 3. Research Center f or A gricultural Resources, I nstitute of Genetics and Develop mental iology, Chinese A cademy of Sciences, Shij iaz huang 050021, China) Abstract: The study on simulatin root-soil interaction usin finite element method is a novel point of root soil-reinforcement mechanism. T his paper probed some questions ex istin in the finite element numer ical analysis of root-soil interaction, such as the foundation of root-soil composite finite element discretization model and units constitutive model, the ascertain of root-soil composite units constitutive model parame- ters and the appraisement of afforested slope stability, then the su estion on the development in the fu- ture w as put forw ard. Key words: for est; root system; interaction; finite element method , , [ 1- 12] 70 70 , , , , , ,