Alain Tabbagh

Alain Tabbagh
French National Centre for Scientific Research | CNRS

About

281
Publications
105,899
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
5,653
Citations
Citations since 2017
37 Research Items
2056 Citations
20172018201920202021202220230100200300
20172018201920202021202220230100200300
20172018201920202021202220230100200300
20172018201920202021202220230100200300

Publications

Publications (281)
Article
Full-text available
Lutetian limestones have been widely used in historical monuments in the Paris Basin in the course of medieval and modern periods. Among the physical properties that can be used to assess the evolution of the limestones in situ in the buildings and their present health, the complex effective permittivity in the 10 kHz – 100 kHz frequency range is e...
Article
Full-text available
Usually, in situ electrical polarization measurements (in geophysical prospection referred to as induced polarization or spectral induced polarization (SIP)) are carried out at frequencies below 1 kHz. These techniques have mainly been used for mining exploration, followed by a larger panel of environmental applications. However, in this ultra low...
Book
Dans la version parue, le chapitre s'intitule "Les prospections microtopographiques et géophysiques de l'abbaye de Preuilly" rédigé par Michel Dabas, Gianlucca Catanzariti, Alain Tabbagh & François Blary
Article
Full-text available
Renovation of water and central heating pipelines is a very costly and time‐consuming process, so a way to prioritize the limited resources between different parts of the systems is very important. The risk for corrosion damage can be assessed from the resistivity of the ground, due to the processes facilitating the metal oxidation also affecting t...
Article
Full-text available
The present experimental study investigates the influence of cyclic displacement amplitude and effective consolidation stress on the evolution of mobilized local shaft friction along piles submitted to large number of cycles (up to 105 cycles). Two-way cyclic displacement-controlled tests were performed on an instrumented pile-probe installed and l...
Article
Full-text available
La méthode électromagnétique basse fréquence (ou EMI pour ElectroMagnetic Induction), située à la croisée des méthodes magnétique, électrique et radar, offre de nombreuses possibilités de développement mais subit également d’importantes contraintes techniques. Malgré des développements instrumentaux initiés dans les années 60, son utilisation a lon...
Article
Full-text available
We used two different loop-loop electromagnetic induction (EMI) devices to determine the 3D geometry and morphology of the pedo-sedimentary filling and underlying basaltic bedrock of a former wetland in a volcanic soil area, the Lac du Puy depression (Auvergne, France). Electrical conductivity (or resistivity) is usually sufficient for environmenta...
Conference Paper
Full-text available
The program "Voir sous les pavés" (“Seeing under cobblestones”) launched for the study of the Grand'Place in Brussels, under the direction of François Blary (ULB) and Michel Dabas (CNRS-ENS), aimed to detect and map the archaeological structures under this square without performing excavations. If this goal seems very common for a geophysicist, it...
Article
In order to investigate local friction mobilization along piles submitted to cyclic axial loadings, a calibration chamber experiment is presented based on the implementation of instrumented probes in specimens of saturated clay. Typical results obtained with a piezo-probe are presented, allowing to measure, on top of tip resistance and local fricti...
Article
Full-text available
This paper presents laboratory measurements of mobilized local friction along piles subjected to very large numbers of axial loading cycles. The experimental approach used here is of the physical modelling type and consists of testing an instrumented prototype pile-probe installed and loaded in specimens of saturated clay reconstituted in a calibra...
Article
Full-text available
The Val-Richer in Normandy is recognised as the place of origin of the resistivity method in applied geophysics. There, during the summer of 1912, Conrad Schlumberger tested for the first time a new method designed to map out the electrical resistivity of the sub-surface. A well-known, hand-drawn blueprint made by Conrad Schlumberger describes this...
Article
Full-text available
The application of geophysical survey methods its into the global archeological prospection approach with the present use of Geographic Information Systems. The irst full time researchers began their work at the end of the ifties. Ground methods are based on the measurement of electromagnetic properties: electrical conductivity, permittivity, compl...
Conference Paper
Full-text available
This work aims at investigating the evolution of local friction mobilized at the pile-soil interface, focusing on small amplitude and large number of displacement controlled cycles, corresponding to fatigue behaviour (10^5 cycles). An experimental program has been conducted in a calibration chamber with an instrumented pile-probe installed and load...
Article
Full-text available
The detection and characterization of buried cables and metal pipes has become a key component of field surveys carried out prior to excavation work on construction sites. The very high conductivity and magnetic permeability contrast between any buried cables/pipes compared with the soil makes electromagnetic induction (EMI) instruments very useful...
Book
Full-text available
Avant de concevoir et dimensionner les ouvrages liés au sol ou souterrains, un ensemble de connaissances en géosciences est indispensable pour établir un modèle géotechnique. L'objectif de ce livre est de fournir les outils pour élaborer ce modèle. Avec celui-ci, les professionnels peuvent ensuite aborder la conception, le dimensionnement et le cal...
Article
High sensitivity temperature sensors (0.001 K sensitivity Pt100 thermistors), positioned at intervals of a few centimetres along a vertical soil profile, allow temperature measurements to be made which are sensitive to water flux through the soil. The development of high data storage capabilities now makes it possible to carry out in situ temperatu...
Article
Recent archaeological research undertaken in the Monte Revincu area (the Desert of the Agriate, NW Corsica) revealed the existence of fifty structured installations with domestic or funerary vocation dispatched on over ten hectares. Most of them are dated to the last third of the Vth millennium BC (4 350-3 950 BC). Data collected during nine archae...
Article
Full-text available
Recent archaeological research undertaken in the Monte Revincu area (the Desert of the Agriate, NW Corsica) revealed the existence of fifty structured installations with domestic or funerary vocation dispatched on over ten hectares. Most of them are dated to the last third of the Vth millennium BC (4350-3950 BC). Data collected during nine archaeol...
Article
Low induction number EMI instruments are able to simultaneously measure a soil's apparent magnetic susceptibility and electrical conductivity. This family of dual measurement instruments is highly useful for the analysis of soils and archeological sites. However, the electromagnetic properties of soils are found to vary over considerably different...
Conference Paper
Full-text available
La méthode électromagnétique basse fréquence (EMI) est couramment utilisée en la prospection archéologique. L'interprétation du signal mesuré est généralement basée sur la conductivité électrique et la susceptibilité magnétique complexe du milieu. Si la prise en compte de ces paramètres est incontournable, la mise en oeuvre d'instruments multi-fréq...
Conference Paper
Full-text available
The very limited range of magnetic permeability variations (from 1.0001 to 1.01 in relative values) that can be observed in soils allows performing 3D linear inversions. To achieve this goal, we propose to successively define a reference conductivity and susceptibility profile, apply a 2D (x, y) Fourier transform to the apparent susceptibility vari...
Conference Paper
Full-text available
We use high precision Pt 100 sensors and apply numerical models of convective and conductive heat transfer to temperature experimental data recorded versus depth and time along a vertical soil profile. After having determined the thermal diffusivity and the convective flux rate it is possible to calculate the water content and the Darcy’s velocity...
Article
Full-text available
A wide variety of remote sensing and ground-based (proximal sensing) methods have been developed to describe soil physical properties and their lateral variations. Remote sensing enables the estimation of soil properties over large areas, but the information is often limited to the soil surface. Ground-based methods enable the derivation of soil pr...
Article
Full-text available
Electromagnetic induction instruments (also called loop-loop, dipole-dipole, or Slingram) are now commonly used in archaeological prospecting. They are truly light instruments, which are able to measure both the apparent electrical conductivity and the apparent magnetic susceptibility of the ground. During a field test in Bahrain Island where the s...
Article
Full-text available
This article addresses the characterization of resistive archaeological targets and near surface structures by electromagnetic induction (EMI). It presents tests achieved with the DualEM-421S instrument (Dualem Inc., Milton, Canada) in order to be able to quantitatively compare these measurements to the standard technique of direct-current (d.c.) r...
Article
Full-text available
We have developed an inversion process of electromagnetic induction (EMI) data based on a two-step approach with 1D inversion of the entire studied surface and a fast 3D inversion applied over limited areas. This process is similar to that formerly used in resistivity prospection. For the study of soil (environmental, engineering, or archaeological...
Article
Full-text available
An electromagnetic (EM) tool working in the mediumfrequency range allows the determination of the electric conductivity and dielectric permittivity of soils with a single measurement. It brings information about different state parameters of soils, especially their water and clay contents for a significant volume of investigation. To investigate th...
Book
Le thème Recommandations du Projet National ERINOH (ERosion INterne dans les Ouvrages Hydrauliques) avait pour objectif de produire trois guides permettant de capitaliser les connaissances acquises pendant ces recherches. Le présent guide propose des recommandations sur l’emploi des méthodes de reconnaissance et de surveillance des digues et suggèr...
Conference Paper
Full-text available
The first experimental demonstration of the voltage distribution at ground surface achieved by C. Schlumberger in 1912 was in fact located over the remains of the ancient Val Richer Cistercian abbey. The electrical survey of these remains allowed the location of the ancient church and cloister. It also permitted the deeper ground resistivity to be...
Conference Paper
Full-text available
An airborne time domain electromagnetic (TDEM) system is currently under development. Its building setup would allow it to use a configuration that has, to our knowledge, never been used in airborne TDEM prospection. Both its transmitting and receiving coils can be simultaneously vertical, resulting in a vertical coplanar (VCP) configuration emitti...
Article
Full-text available
The industrial waste land in Montagne-du-Nord (France) has been occupied by a zinc and a lead smelter unit linked to sulphuric acid production. Then this factory has been razed and covered by coarse waste deposits below sandy fillings. Hydrological and geochemical studies have been systematically carried out by drillings and pits following a mesh o...
Conference Paper
Full-text available
This paper is an original approach from a practical point of view of the use of a multi-frequency Slingram Electromagnetic instru-ment (EMI), namely GEM-2. His use in the field of archaeological prospection is not common. Regarding previous studies, it’s mainly employed for the measurement of the electrical conductivity. For this one, the depth of...
Article
Full-text available
In situ rapid electrostatic investigations on calcareous stones of monuments provide information that strongly correlates with the geological characteristics of the stone and proves to be efficient for provenance identification and successive restoration. With a portable device, it is now possible to scan several thousand blocks on a face of a monu...
Article
Full-text available
Spatial information on soils generally results from local observations that are destructive and time consuming especially in the case of heterogeneous soils. Geophysical technics can be a great help for soil mapping since they are non-destructive and fast. Large areas can be surveyed with a high density of measurements. Electrical resistivity is pa...
Article
Full-text available
Detailed mapping of karstic aquifers is of prime importance for water resources management. To achieve these surveys objectives, airborne measurements are the only methods which allow both large and dense coverage. Electromagnetic induction methods such as time-domain electromagnetic (TDEM) help to map conductors like clayey accumulations surroundi...
Article
Full-text available
Between 2005 and 2006, a series of magnetic and electrical surveys were conducted over the site El Caño, one of the most important pre-Columbian ceremonial site of the Isthmus of Panama (Central America). This site, of 3.4 ha in area presents a set of alignment of columns of carved basalts and tuff and mounds, with a first organized occupation betw...
Conference Paper
Full-text available
Complex magnetic susceptibility is a well-known property both theoretically and experimentally. To achieve this measurement, different ways have been tested, like TDEM or multi-frequential measurement on soil sample. In this study we carry out the measurements by the use of a multi-frequential EMI Slingram instrument to collect data quickly and in-...
Conference Paper
volution morpho-sédimentaire des marais de Canniccia à l'Holocène récent : implications paléoenvironnementales pour l'occupation du site d'I Calanchi/Sapar'Alta entre le Néolithique final et l'âge du Bronze final Résumé : Les recherches archéologiques menées dans le sud-ouest de la Corse sur la basse vallée du Taravo depuis les années 1960 ont mont...
Article
Full-text available
For the past forty years electromagnetic prospecting instruments have played a growing role in the mapping of soil EM properties in the very low-frequency (VLF) range for a large variety of applications and they are now beginning to be applied in the medium-frequency range. Measurement interpretations, however, necessitate expressing the results in...
Article
Full-text available
The archaeological site of El Caño is located in the cultural region of Gran Coclé and is one of the most important pre-Columbian ceremonial complexes of the Isthmus of Panama. El Caño is 3.57 ha in area presents a set of mounds and alignment of columns of carved basalt and tuff. The first organized occupation is dated between 100 and 400 bc, and t...
Book
Full-text available
Geophysical technics can be a great help for soil mapping since they are non-destructive and fast. Electrical data from a3-depth survey, usually treated as three apparent resistivity maps, are considered here as many electrical soundings with three apparent resistivity values. The study of the vertical succession of these values led to a geophysica...
Book
The study aims at demonstrating the ability of thermal airborne remote sensing to help in delineating soil types over large areas. Measurements of the surface temperature variations were compared with electrical resistivity measurements recorded for three depths of investigation. The study area was located in the Beauce region with Calcisols and Ca...
Article
Full-text available
The relative permittivity of soils is related to the volumetric liquid water content by a monotonous and general relationship. Among others, Topp et al. [1980] have proposed a simple empirical function to allow a direct determination of the water content. The moment method is applied here to calculate the apparent permittivity of a given volume of...
Article
Full-text available
This study aims at demonstrating the ability of thermal airborne remote sensing to help in delineating soil types over large areas. Measurements of the surface temperature variations were compared with electrical resistivity measurements recorded for three depths of investigation. The study area was located in the Beauce region with Calcisols and C...