Manufacture of concrete blocks for sewer manhole

摘要

The present invention relates to a method for manufacturing a concrete manhole block for sewers to facilitate manufacturing for concrete manhole blocks by separately forming a manhole block and a joint pipe and prevent leakages by sealing a space between the joint pipe and the manhole block. The method for manufacturing a concrete manhole block for sewers comprises: a forming preparation step for preparing a manhole block forming mold (S100); a primary forming step for forming the manhole block (10) with a plurality of joint pipe installation holes (11) by placing mortar into the forming mold and curing the mortar (S200); a mold removing step for removing the mold from the manhole block after curing (S300); an installation step for installing a gasket (21) and the joint pipe (20) into the installation holes in order (S400); a pressure fixing step for installing a pressure fixing mold (30) to cover the outer surface of the joint pipe and to attach the gasket and the joint pipe to the installation holes (S500); a secondary forming step for injecting mortar into the pressure fixing mold and curing the mortar (S600); and a pressure fixing mold removing step for detaching the pressure fixing mold (S700). [Reference numerals] (S100) Step for preparing forming;(S200) First forming step;(S300) Form removal step;(S400) Step for installing a connecting pipe;(S500) Step for pressurizing and fixing the connecting pipe;(S600) Second forming step;(S700) Step for removing a pressurizing fixing mold