复杂地质条件下LNG接收站顶管与沉井施工技术研究

Research on Pipe Jacking and Open Caisson Construction Technology of LNG Terminal under Complex Geological Conditions

摘要: 我国自1954年引进顶管技术以来，经过多年的发展，顶管技术在我国已得到大量的实际工程应用，且保持着高速的增长势头，然而与国外发达国家先进的机械设备及施工技术水平相比，我国仍然有着显著的差距，惠州LNG接收站气化用海水取自附件电厂温排水，取水管位于地下5.9米，穿越2个厂区，无法明挖，且填石地质施工难度极大，本文针对惠州LNG接收站顶管作业施工中的难点总结经验，致力于推进LNG接收站非开挖技术的发展向规模化、规范化、标准化的方向发展。

Abstract: Since the introduction of pipe jacking technology into China in 1954, it has been widely applied in practical projects after years of development and maintained a high-speed growth momentum. However, there remains a significant gap between China’s technical level including mechanical equipment and construction techniques and that of advanced developed countries overseas. The seawater for gasification at the Huizhou LNG Terminal is taken from the warm drainage of a nearby power plant. The water intake pipe is located 5.9 meters underground, crossing two factory areas, which rules out open-cut excavation. Additionally, the rock-filled geology poses extreme construction challenges. This paper summarizes experience targeting the difficulties encountered in the pipe jacking operations of the Huizhou LNG Terminal, aiming to promote the development of trenchless technology in LNG terminals toward large-scale, standardized, and normalized directions.