elastic support beam

The roof of cavern is regarded as an elastic beam with support at the midpoint and the coal pillars are regarded as bearings so as to establishing a cavern roof-coal pillar system.

将顶板视为中点有支承的弹性固结梁，将煤柱视为支座，形成了顶板-煤柱系统。

The generalized active forces of the beam are applied forces of the moving support and elastic forces of the beam.

梁的广义主动力取为动支承的作用力和弹性力。

Based on the method of calculating the elastic support continuous beam bridge's steady, a practical and simplified method is provided to analyze girder's stability in plane.

主要在弹性支承连续梁临界轴力求解方法的基础上。提出自锚式悬索桥主梁临界轴力的实用简化计算方法。