ASSESSEMENT OF SOIL COLLAPSE PREDICTION METHODS

Expansive and collapsible soils are some of the most widely distributed and costly of geologic hazards. These soils are subjected to change in volume and settlement in response to wettingand drying, often resulted in severe damage to structures. Collapsing soils are generally characterized by sudden and large volume decrease at constant stress when inundated with water. A geotechnical engineer needs to be able to identify readily the soils that could collapse and to determine the amount of collapse that may occur. Various methods of predicting collapse from simple and rapidly-performedindex have been suggested by several workers in the field. In this investigation, most of the well known collapses identifying criteria are reviewed and evaluated. New method and interpretations let rapid and safe prediction of collapse are further discussed in this paper.

Keywords:

Collapsing soils , Assessment , Prediction , New method , Geotechnical engineering