沉井施工法避免了土方大开挖的工序,绕开了受区域范围的限制。沉井大多数为圆形、方形等规则形状,而作为具有“异、大”特点的沉井为数不多,给沉井的制作及下沉都增加了很大的难度。本文结合一呈“葫芦状”的沉井工程实例,阐述了异型沉井施工的要点。 Caisson construction method to avoid the excavation of large earthwork, bypassing the limits of the region. Most of the caisson is circular, square and other regular shapes, and as a few “caisson” has the characteristics of caisson, to make caisson and sinking have increased a great deal of difficulty. In this paper, a “cauldron” caisson project example is presented, and the key points of profile caisson construction are expounded.