Abstract: Ground-water detection monitoring decisions are complicated due to uncertainties in contaminant source characteristics and inherent variability of hydrogeologic conditions. The desire to meet multiple monitoring objectives ...

Abstract: Satisfactory geotechnical performance could be marred by hazards induced by unexpected presence of geologic anomalies. Engineers may need to assess the likelihood of anomaly occurrences and the size statistics, and to ...

Abstract: The effect of deterioration on the reliability of slopes of various service periods has seldom been considered explicitly in the current reliability approach in slope engineering. Constant annual failure probabilities, ...

Abstract: A geologic anomaly is any inclusion that is of a different material type or has different physical properties from that included or normally expected in a design profile. The performance of a geotechnical system could be ...

Abstract: Two nonlinear horizontal survey adjustment problems, one for a triangle and the other for a quadrilateral, were analyzed in Smith and Varnes (1987) using traditional methods. This paper demonstrates a new approach to solve ...

Abstract: A practical method using spreadsheets is proposed for calculating the Hasofer-Lind second moment reliability index β. Two example problems involving correlated normals and correlated nonnormals, respectively, are solved ...

Abstract: A new spreadsheet-cell-object-oriented algorithm for the first-order reliability method is proposed and illustrated for cases with correlated nonnormals and explicit and implicit performance functions. The new approach ...

Abstract: Safety inspection of dams can be scheduled on a probabilistic basis considering detectability and repair probability. In this paper, a method of inspection scheduling for a dam is suggested by using an availability model. ...

Abstract: The performance of a slope, such as surviving a certain groundwater condition, can be viewed as the outcome of a full-scale test performed directly on the slope and may provide valuable information for safety assessment, ...