... This paper describes seven different methods evaluated to determine in situ oxygen profiles in the vadose zone at a site consisting of granular soils. The techniques investigated included both permanent installations (four) and rapid deployment drive probes (three). The soil and ground water...

... of various parameters on the pull-out mechanism and suggest a standardized procedure for control of box boundary effects and other influencing parameters on the pull-out resistance of geogrids. laboratory testing pull-out geosynthetics geogrids cohesive soils granular soils Khalid A. Farrag l...

... a simple and an accurate enough procedure to obtain the modulus. One of the simplest ways of computing the modulus is by means of empirical and semiempirical relationships. In this paper, the available empirical and semiempirical relations for estimating the horizontal subgrade modulus of granular soils...