Assembly type open caisson hoisting mechanism and assembly construction method

The invention provides an assembly type open caisson hoisting mechanism and an assembly construction method, and belongs to the technical field of open caisson assembly. An assembly type open caisson comprises a blade foot ring formed by splicing a plurality of blade foot pipe pieces and a standard ring formed by splicing a plurality of standard pipe pieces; the assembly type open caisson hoisting mechanism comprises a hoisting mechanism for hoisting and assembling blade foot pipe pieces and standard pipe pieces. The hoisting work of open caisson assembling is completed through mutual cooperation of the control base, the reference limiting head, the lifting hoisting head and the pressing limiting head, the reference limiting head, the lifting hoisting head and the pressing limiting head are connected together in a stepped movable connection mode, and the open caisson assembling device has the beneficial effects of being high in assembling precision, good in stability, high in convenience degree and high in as