Underground excavation leads to surface subsidence. Once the surface deformationvalue exceeds a certain limit, the railway in surface subsidence area will be seriously damaged.
地下开挖工程导致地表沉陷,一旦地表变形值超过一定界限时,地表沉陷区内的铁路就会受到严重破坏。
2
The deformationvalue of coal body can be served as a criterion for predicting the risk of coal outburst, as well as an assessment of the effect of degassing measures in coal seams.
变形值可以作为预测煤体突出危险性的一项指标,并可用于预测抽放瓦斯措施的效果。
3
By means of the method of finite element analysis, and simulating the actual working status of the press, the stress and deformationvalue of each hinge beam part of the press were obtained.