INFLUENCE OF FLAT AREA TYPE ON SEWAGE DESIGN CONDITIONS

Abstract

The  paper  discuss  about  advantages  and  disadvantages  in  sewer  system  design  in dependence on designed area composition focusing on flat areas and offer the solution, how to solve these problems, respecting the proper design conditions.
The Slovakia area consists from various type of surface. The choice of sewer building type depends on this type too. The West and East Slovakia cover flat areas. The flat areas, without natural slope require the special approach concerning the sewer system built. This area type offers various solutions. Slovak legislative recommend to keep the design principles, which are under pressure of investor – the build price  decreasing.  The  dispute  between  investment  cost  and  on  the  other  side  operational  costs  and operational  conditions  must  consider  the  design  principles.  The  alternative  sewer  system  design  is allowed, such as gravity and vacuum system, but it is strictly recommends to prove the validation of designed  system. The  very important  influence  on  the  sewer  system  design  has  the  EU promises,
which  make  a press for the  fast  sewer  system built  in Slovakia,  which  could  be decrease  the quality process of designing.