Built-up Mold for Preventing Pollution, and Manhole and Retaining Wall by Using the Same, and Method for Construction the Manhole and Retaining Wall

摘要

PURPOSE: A method of constructing a manhole and a retaining wall by fabricated forms is provided to increase the structural stability of a connecting part by integrating the process of forming a manhole or a retaining wall with the one of connecting drainpipes, also to cut down on the time and the cost of construction. CONSTITUTION: The fabricated forms for a manhole and a retaining wall is composed of: a slab plate(75) provided with a hole to form a manhole opening; an upper plate support(57) supporting the slab plate; a bracket(58) connected to the support and an inner form(50); a cylinder-type ring(175) to form the inner wall of a manhole opening; an upper form comprising numbers of slab plate units provided with an upper projection and a lower projection; an outer form comprising an opening and a cylinder-type pipe where a drain pipe is inserted and provide with a band groove where a tight band is inserted; a corn-shaped expansion extended from the cylinder-type pipe; a connecting member(20) provided with an adhesive face and extended from the expansion; an inner form(50) comprising a hemisphere-shaped body and an adhesive face extended from the body.