文章详细介绍了超大断面矩形盾构顶管（10.12 m×7.27 m）设计的关键技术研究： 1）矩形断面开挖形式的研究与选型分析；2）超宽矩形薄壳体强度、刚度研究； 3）顶推机构电液比例集成控制研究； 4）矩形断面渣土改良技术研究。以上关键技术的研究解决，在施工现场得到了成功应用，为城市超大矩形断面交通隧道施工提出了一种全新工法。矩形隧道施工将会成为最经济、安全和快捷的工法。

Study is made on the following key technologies for the design of a superlarge rectangular pipe jacking machine (10.12 m×7.27 m): 1) study and selection of excavation modes of rectangular crosssection tunnels; 2) study on the strength and rigidity of the superwide, rectangular and thin shell of the pipe jacking machine; 3) study on the integrated electrohydraulic proportional control of the thrust system of the pipe jacking machine; 4) study on the soil conditioning of the rectangular tunnel. The results of the studies on aforementioned technologies have been successfully applied on a superlarge rectangular pipe jacking machine, which will provide an economic, safe and rapid solution for the construction of rectangular tunnels in urban areas.