A SPT Based Evaluation of Liquefaction Potential of Rapti Main Canal in District Balrampur

Neelesh Kumar Singh; Anurag; Dr. S. M. Ali Jawaid

Volume : IV, Issue : XI, November - 2015

A SPT Based Evaluation of Liquefaction Potential of Rapti Main Canal in District Balrampur

Neelesh Kumar Singh, Anurag, Dr. S. M. Ali Jawaid

Abstract :

Rapti main canal is leading distributary under the project Saryu Nahar Pariyojna. Rapti main canal having a stretch of 125 km and a capacity of 95 cumeec travels through districts Balrampur, Behraich and Shravasti. Seismic soil liquefaction is evaluated along this stretch in terms of factor of safety (FS) against liquefaction along the varying depths of soil profile for earthquakes of different moment magnitudes using Indian standard penetration test (SPT) based on simplified procedure suggested by Seed & Idriss. As the majority of sites along the stretch of Rapti main canal are water-logged and having inorganic silt and poorlygraded sand, the susceptibility of liquefaction is observed to be very high at many places.