深圳福田地下综合交通枢纽具有超长、超厚、长高比大及施工周期长等特点，建设期间承受较大的温度收缩应力和干燥收缩应力。若设计伸缩缝，则会因为较多的伸缩缝对建筑外观、结构安全、防水质量、施工及耐久性产生不利影响。结合理论分析、设计计算等研究该工程不设永久伸缩缝的可行性。同时针对在不设永久伸缩缝的条件下，以控制主体结构不出现有害裂缝为目标，对工程结构形式、抗裂材料、施工要求、现场监测以及裂缝处理预案进行研究，提出了成套的技术方案。经过实践证明： 该工程在按照设计的抗裂结构形式、材料及施工要求等条件下，不设永久伸缩缝可以满足结构主体的抗裂要求。

Due to the extremely long length, great thickness, large length/height ratio and long construction period, Futian underground comprehensive transportation hub in Shenzhen has to suffer large temperatureinduced contraction stress and dryinduced contraction stress during the construction. If expansion joints are installed, the appearance, structural safety, waterproofing quality, construction and durability of the structure will be affected. In this paper, the feasibility that no permanent expansion joints are installed for the project is studied by means of theoretical analysis and design calculation. Furthermore, the structural types, anticracking materials, construction requirements, site monitoring and crack countermeasures are studied so as to avoid harmful cracks of the main structure of the project under the condition of no permanent expansion joints.In the end,a serise of technical program is proposed. The construction practice shows that the anticracking requirement of the main structure of the project can be met when no permanent expansion joints are installed, provided that the project is constructed according to the designed anticracking structural types, materials and construction requirements.