- a technical report with 29 self-explanatory Figures -
PEHD Manhole and Chamber design stipulates various manufacturing configurations dependent upon actual site conditions. A number of factors including water table height, depth of cover and backfilling materials have significant impact on base configurations.
Where PEHD Manholes and chambers will be installed in areas with high ground water levels, a double bottom construction is recommended, which has to be filled with liquid concrete at the job site. In the case of the double bottom type there are two openings in the upper bottom one is for the filling of the liquid concrete and one is for the venting during the filling process. These openings need to be closed after filling and hardening of the concrete with covers. When installing the manholes up to 1200 mm diameter in ground water, for lift-retention reasons, a backfilling width of at least 50 cm is to be maintained outside and a concrete filling of the benching may be necessary.
On Thursday the 17th of October, during the Krah Community & Friends Party, the new calendar for the year 2014 will be presented. The location of the party will be loft26 in 41460 Neuss. During the last 3 months several photo shootings were done in Argentina and also in Estonia.
A small "making of" video is available - the second part of the shooting in Estonia will be published soon.