关键词: 人工岛隧道;现浇混凝土;温度应力;有限元仿真分析;防裂

Abstract: As the high strength, large section size and severe service environment for the cast -in-suit concrete construction in the artificial island tunnel of the Hong Kong Zhuhai Macao Bridge , crack control of concrete was difficult.The design requirements for concrete of the artificial island tunnel were low permeability, high resistance crack and long service life.In order to meet these requirements and reduce the cracking risk of concrete, the distribution law of temperature and thermal stress was analyzed , the targets of anti-crack are defined, and the corresponding measures were put forward , through the simulation analysis of typical construction .

Key words: artificial island tunnel;cast-in-suit concrete construction;thermal stress;finite element simulation analysis;anti-cracking measures