新型LNG储罐隔震垫螺柱预留孔设计及施工方法

DESIGN AND CONSTRUCTION SCHEME OF NEW RESERVED HOLES FOR THE STUDS OF VIBRATION ISOLATION PADS OF LNG STORAGE TANK

隔震垫结构具有良好的抗震性能,正被广泛地应用于超大容积LNG储罐的设计建造。隔震垫结构的施工工艺直接影响其隔震性能、施工难度和工期,通过预埋波纹管得到预留孔,无需拔出,能够显著减小施工难度,缩短工期并提升安装质量,为完善超大容积LNG储罐结构的设计和建造技术提供参考。新工艺已实现工程化应用,并取得了良好的效果。

The isolation pad has a good seismic performance and is being widely used in the design and construc⁃tion of ultra-large volume LNG storage tanks.The construction process of the isolation pad structure directly affects its isolation performance,construction difficulty,and construction period.The reserved holes are set in the pre-em⁃bedded corrugated pipes,which can significantly reduce the construction difficulty,shorten the construction period,and improve the installation quality.The new method has been used in engineering applications with good effective⁃ness.