摘要
所用模拟模型基于流体力学和土力学理论,通过差分法将反映滑体运动的微分方程转换为代数方程并编制计算程序。通过对滑坡滑动路径上不同部位土体进行大型环剪实验,测定计算参数。分析三维模拟表明,三元洞滑坡具有滑动距离远、影响范围大和堆积厚度大的特点,危险巨大。结果显示所用模型对于模拟黄土滑坡运动具有很好的适用性。
The simulation model is based on fluid mechanics and soil mechanics. Differential equations reflecting landslide movement are converted into algebraic equations by the differential method and calculation program is prepared. The three-di-mensional simulation of the Sanyuandong Landslide shows that it will have a long sliding distance, a big scope and thick accu- mulation, with huge risk. It turns out that the model has good applicability for the simulation of loess landslide movement.
出处
《地质灾害与环境保护》
2013年第3期21-25,共5页
Journal of Geological Hazards and Environment Preservation
基金
成都理工大学国家重点实验室开放基金(SKLGP2012K013)
国家自然科学基金(41272341)
山东省高等学校科技计划项目(J12LG08)
关键词
滑坡
黄土
模拟
环剪
landslide
loess
simulation
ring shear
