SEISMIC VELOCITIES FOR QUALITY CONTROL OF COMPACTED SOIL AT EMBANKMENT DAM: A CASE STUDY- SERIK AKBAS DAM (ANTALYA)

Abstract:

In this study, lateral and vertical compactness were investigated in the cohesive and non-cohesive soil fill materials in at embankment dam.

Field compaction process of fill materials were performed by a sheepsfoot roller and a vibration roller. In general, “the test methods for rapid determination of percent compaction”, “the water replacement method” are used for quality control of compacted soil. In addition to these methods, “multichannel analysis of surface waves method” and “seismic refraction method” were applied for compaction quality-control tests in the Serik Akbaş Dam (in Manavgat-Antalya) located in the north of Turkey.

The Results obtained from each methods were compared. Seismic methods has linear and areal value wheas classical methods has point density value. Therefore, varations of lateral and vertical units were defined using seismic methods. Furthermore, Young's modulus (E), Shear modulus (G), Bulk Modulus (K) and Poisson's ratio (µ) of compacted soil were calculated. The results show that it is seen that seismic velocities are increased when soil compress at a percentage of a standard maximum density and optimum moisture content.