- 积分
- 14
- 注册时间
- 2005-6-7
- 仿真币
-
- 最后登录
- 1970-1-1
|
本帖最后由 tg0215 于 2011-1-16 10:50 编辑
The cavability of Longwall top coal is a major issue in longwall top coal caving (LTCC) method. It is influenced by many factors, like coal strength, cover strength, top coal thickness, joint/cleats in seams and overlying strata. Numerical modeling is a powerful way to study this issue. DEM probably is the appropriate method to do LTCC modeling since it can realistically reproduce the process of crack initiation, propagation and coalescence which is essential to top coal caving. The following plots show the process of LTCC using PFC and UDEC, respectively. |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有账号?注册
×
|