中文摘要：

以采动影响下高压线铁塔为原型，采用数值模拟方法对地表水平变形与铁塔内力和变形的关系进行了研究．分析了高压线铁塔在不同地表拉伸、压缩变形影响下铁塔内力和位移的变化规律．研究表明，随着地表水平拉伸变形值的增加，高压线铁塔内杆件的轴向压应力和拉应力均呈二次方关系增加；随着地表水平压缩变形值的增加，高压线铁塔内杆件最大压应力和最大拉应力均呈对数关系递增．地表拉伸变形对高压线铁塔的影响大于地表压缩变形的影响；地表水平变形对高压线铁塔倾斜度及横担歪斜度影响相对较小．

英文摘要：

Based on the high - voltage transmission line tower effected by mining, the relationship between the stress and deformation of the high - voltage transmission line tower and surface horizontal strain was studied by numerical simulation. The stress and displacement changing laws of the tower under different surface horizontal tensile, compressive strain were analysed in normal working condition. The results indicate that the compressive and axis tensile stress of the member bar in the tower increases by square with the increase of surface horizontal tensile strain, and the compressive and axis tensile stress of the member bar in the tower increases by logarithm with the increase of surface compressive strain. The results also demonstrate that the effect of the surface tensile strain on the tower is lager than that of surface compressive strain. The effect on the tower and its transom inclination of surface horizontal strain is comparatively smaller.