岩土力学2009，Vol.30Issue(11)：3406-3410,3416,6.
地下采矿引起的地表下沉的动态过程模型
Model for dynamic process of ground surface subsidence due to underground mining
刘玉成 1庄艳华2
作者信息
- 1. 重庆大学,西南资源开发与环境灾害控制工程教育部重点实验室,重庆,400044
- 2. 毕节学院,采矿工程系,贵州,毕节,551700
- 折叠
摘要
Abstract
Through analyzing the Knothe time function model for the dynamic process of the ground surface subsidence due to underground mining, it is found that the model can't accord with the observational data. By adding a constant parameter k to the Knothe time function, a new time function model has been set up. The velocity and acceleration worked out from this new time function model is in accordance with the dynamic process of the surface subsidence. In this new model the parameter c decides how long the subsidence would continue; and the parameter k decides the path of the subsidence on the axis of time. This new subsidence dynamic model fits well the curve of the observation data on the inclining section of the surface subsidence basin of a certain coal mine, the parameter c is obtained by practical consideration and the parameter k is obtained by least square method. Combining this new time function model with the section function of the surface subsidence basin or the basin model, a dynamic process model for the surface subsidence due to underground mining is set up; form this model the subsidence and velocity and acceleration of some point on the subsidence basin or the section could be worked out in anytime.关键词
地表下沉/剖面曲线/动态过程/时间函数模型Key words
ground surface subsidence/ section curve/ dynamic process/ time function model分类
矿业与冶金引用本文复制引用
刘玉成,庄艳华..地下采矿引起的地表下沉的动态过程模型[J].岩土力学,2009,30(11):3406-3410,3416,6.
