Towards sustainable GEOTEchnical approaches to SLope stabilisation: An innovative chemical−electrokinetic soil stabilisation technique
GEOTESLA
Dataset Description
Brief description of the dataset The dataset includes comprehensive experimental data obtained from a large-scale shaking table testing campaign on a clayey-soil slope model treated with a novel chemical–electrokinetic soil stabilisation technique. The experimental programme was conducted within the Engineering Research Infrastructures for European Synergies (ERIES) framework, under the ERIES-GEOTESLA Project, to investigate the seismic response of slopes treated with an innovative stabilisation technique combining chemical agents and electrokinetic processes.
The testing campaign was organised in two phases:
Phase 1: A slope model in its natural state, tested under selected earthquake excitations.
Phase 2: A slope model stabilised by the proposed chemical–electrokinetic technique, tested under the same earthquake excitations, to evaluate the effects of the given technique on improving the dynamic properties of the soil and slope resilience.
The dataset contains detailed information on the slope model geometry, the model composition, the stabilisation configuration (phase 2), and the construction details of the slope model, accompanied by technical drawings of the steel container in which the slope model is embedded. The experimental data consist of response-history measurements recorded during harmonic excitation seismic tests performed at progressively increasing intensity levels. The measurements were obtained using a comprehensive instrumentation system, including accelerometers and linear potentiometers.
All experimental results are provided in TDM format containing synchronised acceleration and displacement data. The dataset is organised by the corresponding testing phases, enabling a direct comparison of the responses of the slope model before and after the chemical–electrokinetic treatment. Additional documentation, consisting of sensor layouts, photographs, and video-recordings, is also included.
Specimens
1. Natural slope model
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The test specimen consists of a rigid container designed as a welded steel structure, with external base dimensions of 4.09 m × 2.24 m and a height of 1.8 m. The frame is built with HOP profile columns (150 × 100 × 6 mm), L-profile ties (100 × 10 mm), a bottom steel plate of 20 mm thickness, and vertical plexiglas walls of 20 mm thickness. The transparent walls allow direct observation and recording of slope deformation and failure during seismic testing.
Inside the container, a slope model is prepared with dimensions of 4.0 m length, 2.0 m width, and 1.5 m height, inclined at 3:1. The slope is constructed in 20 cm thick layers, each compacted with a hand rammer at a water content above the plastic limit to ensure plastic consistency. Soil compaction is verified by bulk density measurements using a cylinder of known volume. Instrumentation is embedded at predefined locations within the slope during construction to capture the response under earthquake excitation.
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1. Natural slope shake table test
During testing, the slope is subjected to selected sine wave excitations of progressively increasing intensity. The objective is to observe the dynamic response of untreated soil, including deformation, displacement, and eventual failure mechanisms. Transparent plexiglass walls allow direct visual monitoring and recording of slope behavior, while instrumentation captures acceleration and displacement data throughout the tests.
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Instrumentation
The measurement equipment includes 25 accelerometers with different sensitivity and measuring range and 2 linear potentiometers (LP), by Micro Epsilon.
Data acquisition was carried out using a National Instruments PXI-1006 chassis, equipped with nine NI PXI-4472 dynamic signal acquisition modules.
2. Stabilized slope model
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In the second model, the clayey soil slope is treated with a chemical–electrokinetic stabilisation technique using lime as the stabiliser. Hollow perforated steel electrodes are embedded in the slope, with anodes injecting lime into the soil and cathodes facilitating drainage. The treatment is applied under a DC electric field for about 30 days, after which the electrodes remain in place, contributing to reinforcement and long-term drainage. Compared to the first model of natural soil, this improved slope allows evaluation of how stabilization alters the soil’s dynamic properties under earthquake excitation, with additional laboratory tests performed on samples taken at different depths and distances from the electrodes.
1. Stabilized slope shake table test
During testing, stabilized slope (specimen 2) is subjected to the same sine wave excitations as specimen 1. The objective is to observe the dynamic response of treated soil, including deformation, displacement, and eventual failure mechanisms. Transparent plexiglass walls allow direct visual monitoring and recording of slope behavior, while instrumentation captures acceleration and displacement data throughout the tests.
mp4
mp4
Instrumentation
The measurement equipment includes 25 accelerometers with different sensitivity and measuring range and 2 linear potentiometers (LP), by Micro Epsilon.
Data acquisition was carried out using a National Instruments PXI-1006 chassis, equipped with nine NI PXI-4472 dynamic signal acquisition modules.
Project Metadata
Rights
Creative Commons Attribution 4.0 International.
CC BY 4.0
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