Seismic Hazard Analysis for Sikaser Dam of Chhattisgarh State (India)

Asian Resonance(P: ISSN No. 0976-8602 RNI No.UPENG/2012/426228 VOL.-IV, ISSUE-I, January-2015  E: ISSN No. 2349-9443

Abstract


 Ashish Kumar Parashar 

Assistant Professor, Deptt. of Civil Engineering, IT, GGV (Central University), Bilaspur.

Seismic vulnerability analysis, an approach to get an estimate of the strong ground-motions at any particular site, is mainly intended for earthquake resistant designs or for seismic safety assessments. The hazards associated with earthquakes are referred to as seismic hazards. The hazard study usually attempts to analyze two different kinds of anticipated ground motions, “the Probabilistic Seismic Hazard Analysis” (PSHA) and “the Deterministic Seismic Hazard Analysis” (DSHA). An effort has been made herein to do seismic hazard analysis for Sikaser Dam (20 31 30 N, Long. 82 19 0 E) of Chattisgarh state. An attempt was made to compile the occurrence of past and recent seismic activities within 300 km radius around the Dam site. Further, the seismic hazard analysis was carried out at substratum level in terms of PGA using (DSHA), deterministic seismic hazard analysis technique. The main benchmark and indicator involved in carrying out the hazard analysis is the correctness and completeness of the data which needs to be attained. The knowledge presented in this paper helps in evaluating the seismicity of the region around, Sikaser Dam site after statistical analysis of the database. Finally, the results are furnished in the form of peak ground acceleration (PGA) for 50 percentile & 84 percentile with 100 years of Recurrence Period which can be used directly by engineers as fundamental considerations, for generating earthquake-resistant design of structures in and around Sikaser Dam.

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http://www.socialresearchfoundation.com/upoadreserchpapers/1/32/150602062121english.pdf


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