在这种背景下，研究大底盘大孔口结构的受力特性及其分析方法，对结构设计具有重要意义。
In this situation, it's of great significance for structural design to study mechanical characteristics and the analytical method of the special structure.
对于库区无适宜垭口可兴建泄洪道，而泄洪量又较大的拱坝工程，在坝身中开设大孔口泄洪具有显著的优越性。
For the arch dam which reservoir has no suitable breach to build lasher and has mass flood discharge, opening large orifice for flood discharge has great advantage.
水电站工作弧门预应力闸墩具有孔口尺寸大、水推力大等特点。
Prestressed pier of hydropower station service radial gate features large aperture dimension, high water thrust and so on.
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