ABSTRACT
The purpose of this paper is to present a prototype designed to solve a common issue that occurs in Qatar sewage systems which explains having unfinished sewers maintenance in most neighborhoods, it is due to clogged house sewers. House sewers are often clogged by many components but roots are the most common, this results in house floods, loss of time, effort, cost and a long shutdown time of the system. Therefore, a new mechanism was needed, studied, designed, and 3D-modeled to physically test its size and functionality and most importantly, solve the main problem of unclogging sewers from roots. Collected data was based on research and interviews with civil and maintenance engineers which led to generating mechanical design concepts using SolidWorks and 3D printers, other concepts included material properties, stress analysis, and environmental considerations. The mechanism was designed particularly to overpower the roots resistance and cut through them, leaving a clean inner pipe and an uninterrupted wastewater flow, and to eliminate chances of flooding. Due to the purpose of this study and the nature of its operation, a stress analysis study was made on the drill head to validate the scenario of fabricating the mechanism using the chosen material.
