RCC SPILLWAY OF AN EARTHERN DAM

1

Spillway piers showing leakages

2

Leakages at constriction joints

3

Tracing the path of leakage and diverting the same through PVC ports

4

Grouting the ports with Cementatious grout with varying water/cement ratios. (Grouting was done with natural pressure, not by pumps)

5

Pier after completion of grouting

Make OR Break Factor

All investigative and construction work had to be carried out at full reservoir levels.

THE CHALLENGE :

  • The dam was witnessing water leakages through its RCC piers, that was affecting its performance and endangering the whole structure.

THE ODDS :

  • Given the nature of the structure, the solution had to be designed keeping in mind the cohesiveness of application as well as local material available on the site.

OUR RESPONSE :

  • Our first step was to Investigate the extent and path of the various leakages
  • After which, we designed a system that utilized local material available at the site and executed the process