Obtaining 2D Soil Resistance Profiles from the Integration of Electrical Resistivity Data and Standard Penetration Test (SPT) and Light Dynamic Penetrometer (DPL) Resistance Tests—Applications in Mass Movements Studies

Abstract

In Brazil and various regions globally, the initiation of landslides is frequently associated with rainfall; yet the spatial arrangement of geological structures and stratification considerably influences landslide occurrences. The multifaceted nature of these influences makes the surveillance of mass movements a highly intricate task, requiring an understanding of numerous interdependent variables. Recent years have seen an emergence in scholarly research aimed at integrating geophysical and geotechnical methodologies. The conjoint examination of geophysical and geotechnical data offers an enhanced perspective into subsurface structures. Within this work, a methodology is proposed for the synchronous analysis of electrical resistivity geophysical data and geotechnical data, specifically those extracted from the Light Dynamic Penetrometer (DPL) and Standard Penetration Test (SPT). This study involved a linear fitting process to correlate resistivity with N10/SPT N-values from DPL/SPT soundings, culminating in a 2D profile of N10/SPT N-values

Antecedent Precipitation Index to Estimate Soil Moisture and Correlate as a Triggering Process in the Occurrence of Landslides

“…Soil moisture is a geotechnical variable that can be obtained through direct in-situ measurements using real-time monitoring sensors/equipment [13] or estimated through various empirical techniques or methods [14]- [22]. This estimation may also involve utilizing monitoring data for calibration or adjustment of prediction models [23]- [28].…”

The SNAKE System: CEMADEN’s Landslide Early Warning System (LEWS) Mechanism

“…CEMADEN, in particular, emphasizes the need to understand and predict landslides. Their research ranges from slope stability studies [9] [10] to integrating various methods to address the issue [11] [12] [13] and even software development for data analysis [14] [15] [16].…”