Determining soil permeability from pressuremeter tests

An Efficient Method for Determining Capillary Pressure and Relative Permeability Curves from Spontaneous Imbibition Data

In this paper, a very efficient method, called single matrix block analyzer (SMBA), has been developed to determine relative permeability and capillary pressure curves from spontaneous imbibition (SI) data. SMBA mimics realistically the SI tests by appropriate boundary conditions modeling. In the proposed method, a cuboid with an identical core plug height is considered. The equal dimensions of...

Appendix a Pressuremeter Test Interpretation

Nonlinear modeling of soil deformation modulus through LGP-based interpretation of pressuremeter test results

Soil deformation modulus is an essential parameter for the analysis of behavior of substructures. Despite its importance, little attention is paid to developing empirical models for predicting the deformation moduli obtained from the field tests. To cope with this issue, this paper presents the development of a new prediction model for the pressuremeter soil deformation modulus utilizing a line...

Estimating in-situ soil permeability from CPT & CPTu

Engineers often want to estimate profiles of soil permeability (hydraulic conductivity) as part of the site characterization process. Several methods have been proposed to estimate the coefficient of permeability (k) using CPT results. These methods are generally based on two approaches: (1) estimated soil type and (2) rate of dissipation during a CPTu dissipation test. This paper presents upda...

Tests on Determining Digital Elevation Models from Ers Tandem Data

The ERS Tandem Mission from August 1995 to May 1996 provided a large resource of data that can be used for a number of applications in the geosciences, based on the principle of interferometry, referred to in this paper as InSAR. InSAR techniques can provide a new and efficient method of deriving DEMs with little manual input. This paper describes research on the determination of digital elevat...