不规则工作面开采地表沉陷预计研究

Study of Subsidence Prediction about Irregular Working Face Mining

为保证煤矿安全开采,结合某矿三采区的实际开采区域,依据概率积分法原理,建立适用于不规则工作面开采沉陷预计模型,开发岩移预计系统,并根据其上覆岩层实际情况,选取预计参数进行沉陷预计。得到在三种不同的开采方法下,先后开采15煤、2煤共计4个开采区域的地表各种变形值和地表各建筑物的损坏等级。结果表明:所建立的开采沉陷预计模型适宜于不规则工作面的预计,预计结果为实际开采方案的确定提供了依据。

Mining subsidence prediction model was established suitable for the irregular working face,in order to ensure the mine safety production,combining the actual mining area of three mining area in one coal mine,according to the probability integration method principles.Rock movement prediction system was developed to carry out the subsidence prediction according to the actual circumstance of the overburden to select the prediction parameters.In the paper,the author got the various deformation values and each building damage grades of four coal mining areas combining 15 coal and 2 coal by three different mining methods.The results showed that the mining subsidence prediction model was suitable for the irregular working face to expected and the prediction results provided the basis for the actual mining scheme.