A realistic field monitoring application to evaluate close proximity tunneling effects of a new tunnel on an existing tunnel is presented. A blind source separation (BSS)-based monitoring framework was developed using sensor data collected from the existing tunnel while the new tunnel was excavated. The developed monitoring framework is particularly useful to analyze underdetermined systems due to insufficient sensor data for explicit input force-output deformation relations. The analysis results show that the eigen-parameters obtained from the correlation matrix of raw sensor data can be used as excellent indicators to assess the tunnel structural behaviors during the excavation with powerful visualization capability of tunnel lining deformation. Since the presented methodology is data-driven and not limited to a specific sensor type, it can be employed in various proximity excavation monitoring applications.

No description available.

Στα πλαίσια της οριστικής μελέτης της σήραγγας του Πλατάνου έγινε γεωλογική και γεωτεχνική αξιολόγηση όλων των φάσεων ερευνών που έχουν εκπονηθεί στην περιοχή ενδιαφέροντος καθώς και συμπληρωματικές επί τόπου γεωλογικές, υδρογεωλογικές, τεχνικογεωλογικές και γεωτεχνικές παρατηρήσεις. Συνολικά αξιολογήθηκαν δεκαοχτώ ερευνητικές γεωτρήσεις της παρούσας φάσης ερευνών και δεκατρείς ερευνητικές γεωτρήσεις που έχουν εκπονηθεί για άλλα έργα στην στενή περιοχή διέλευσης της σήραγγας. Τέλος αξιολογήθηκε και μια υδρογεώτρηση. Με βάση την αξιολόγηση των ανωτέρω στοιχείων, των παρατηρήσεων υπαίθρου καθώς επίσης και τα αποτελέσματα της μελέτης αεροφωτογραφιών και δορυφορικών εικόνων συντάχθηκαν οι γεωλογικές μηκοτομές και γεωλογικές διατομές του έργου. / -

De nos jours la quasi-totalité des grandes métropoles du monde comptent avec des réseaux de transport étendus et ont pour la plupart satisfait leurs besoins de construction d’ouvrages souterrains. Cependant le parc des ouvrages existants est vieillissant et une part importante est en service depuis plusieurs décennies, par conséquence, l’entretien et la pérennisation des infrastructures souterraines existantes un enjeu majeur pour la gestion et le développement des villes. En vue d’améliorer leur politique de maintenance, c’est-à-dire pérenniser leur patrimoine et le maintenir dans de bonnes conditions de sécurité et d’exploitation, il est nécessaire que les gestionnaires d’ouvrages puissent mettre à jour leurs techniques de diagnostic (AFTES, 2005). Il est donc impératif de disposer d’outils leur permettant de mieux évaluer l’état réel des ouvrages. Or les méthodes dont disposent à l’heure actuelle les gestionnaires sont le plus souvent soit insuffisantes pour apporter une information quantitative de qualité, soit mal adaptées aux contraintes de ces ouvrages. Dans ce contexte, le projet ANR MéDiTOSS « Méthodologie de Diagnostic des Tunnels et Ouvrages Souterrains en Service » vise à développer une nouvelle méthodologie de diagnostic adaptée à ce type d’ouvrage en caractérisant les différents composants de l’ouvrage (structure du revêtement, terrain encaissant ainsi que leur interface ou contact). L’objectif de cette thèse est de fournir au gestionnaire des indicateurs physiques et mécaniques lui permettant d’orienter sa politique de maintenance en s’appuyant sur une expertise plus certaine. / Maintenance and sustainability of underground structures are the major tasks for infrastructures’ owners. To carry out these tasks, managers need to qualify the actual state of these facilities. There are very few operational methods to describe separately each component of an underground structure (structure lining, contact interface and surrounding soil). Most of them are mainly based on visual inspection. Nevertheless only the intrados of the tunnel is open to visual inspection. To improve their maintenance policy, that is to say sustain their heritage and keep it in good conditions of safety and operational, it is necessary that manager’s can update their diagnosis methods (AFTES, 2005). It is therefore imperative to have tools to better assess the actual condition of structures. However, the methods available at present managers are often either insufficient to provide quantitative information quality or poorly adapted to the constraints of these works. In this context, the ANR project MéDiTOSS "Methodology Diagnostic Tunnels and Underground Structures in Service" aims to develop a new diagnostic methodology adapted to this type of work characterizing the various components of the structure (structure of the lining, enclosing soil and their interface or contact). The objective of this thesis is to provide to the managers of physical and mechanical indicators that will guide its maintenance policy based on a certain expertise.

Le sous-sol urbain est aujourd’hui reconnu comme un espace riche en ressources, espace disponible, eau, géo-matériaux et géothermie jouant un rôle fondamental dans l’aménagement durable des territoires mais dont la réglementation reste lacunaire. Dans un contexte de développement urbain vertical, l’eau souterraine peut être impactée. L’objectif de la thèse est de développer une compréhension quantitative des impacts des ouvrages souterrains sur l’ eau souterraine urbaine afin de proposer des éléments d’aide à la décision destinés aux aménageurs du territoire. Ces travaux de thèse ont permis d’améliorer la compréhension du rôle joué par différents types ouvrages souterrains à une échelle de prise de décision. Les résultats montrent que les ouvrages impliquant des systèmes de pompages sont responsables d’une fragmentation des systèmes d’écoulement. Dans des conditions de faible gradient hydraulique, les ouvrages imperméables ont un impact marginal sur la position de la surface libre. Le comportement hydrodispersif des ouvrages a également été étudié et un effet de mélange dispersif a été mis en évidence au droit des ouvrages souterrains. Il favorise la migration verticale des contaminations urbaines. L’impact des ouvrages souterrains sur la temperature de l’eau souterraine urbaine a également été étudié. Le transfert de thermique entre les ouvrages et l’aquifère urbain a été quantifié et a mis en évidence l’ampleur des zones thermiquement impactées. Enfin, la compréhension des impacts des aménagements souterrains sur l’eau souterraine urbaine a permis de formuler des recommandations afin de prévenir les risques et nuisances inhérents à la construction de nouveaux ouvrages : risque d’inondation par remontée de nappe, risque d’altération qualitative de la ressource, menace et opportunité vis-à-vis du potentiel géothermique d’un aquifère urbain. / Urban subsoil provides space, groundwater, geothermal energy and geomaterials, and the importance underlying the management of this strategic space is well-known. In the context of vertical urban growth, groundwater management, is a crucial issue. The aim of the PhD thesis was to improve the knowledge related to the impacts caused by underground structures on groundwater resource in order to provide a basis for the decision making dedicated to urban planners. The understanding of the role played by numerous types of underground structures was improved at the decision-making scale. Underground structures involving pumping devices were shown to be responsible for the fragmentation of flow systems, which can modify the urban groundwater regime. Under low gradient conditions, impervious structures were confirmed to have a nonsignificant effect on water table elevation. Regarding quality, reservoir theory was applied to assess the impact of underground structures on groundwater quality. This theory allows to take into account the advective and dispersive part of groundwater flow. A dispersive piston effect is shown to occur under the structures, favoring the vertical spreading of pollutants. In addition, the impacts of underground structures on urban groundwater temperature were investigated. The annual heat from underground structures were computed deterministically, highlighting the significant thermally affected zones. Finally, the impacts of underground structures on groundwater flow quality and temperatures were analyzed in order to prevent risks and disturbances : flood risk, degradation of groundwater quality, jeopardizing geothermal potential.

Nesta tese o autor estabelece um método sistemático de quantificação de risco em obras subterrâneas em maciço rochoso fraturado utilizando de maneira eficiente conceitos de confiabilidade estrutural. O método é aplicado a um caso de estudo real da caverna da Usina Hidrelétrica Paulo Afonso IV, UHE-PAIV. Adicionalmente, um estudo de otimização de projeto com base em risco quantitativo também é apresentado para mostrar as potencialidades do método. A estimativa do risco foi realizada de acordo com as recomendações da Organização de Auxílio contra Desastres das Nações Unidas, UNDRO, onde o risco pode ser estimado como a convolução entre as funções de perigo, vulnerabilidade e perdas. Para a quantificação da confiabilidade foram utilizados os métodos de aproximação FORM e SORM com uso de acoplamento direto e de superfícies de resposta polinomial quadráticas. A simulação de Monte Carlo também foi utilizada para a quantificação da confiabilidade no estudo de caso da UHE-PAIV devido à ocorrência de múltiplos modos de falha simultâneos. Foram avaliadas as ameaças de convergência excessiva das paredes, colapso da frente de escavação e a queda de blocos. As funções de perigo foram estimadas em relação à intensidade da ameaça como razão de deslocamento da parede ou volume do bloco. No caso da convergência excessiva, um túnel circular profundo foi estudado com o intuito de comparar a qualidade de aproximação da técnica numérica (FLAC3D com acoplamento direto) em relação à solução exata. Erros inferiores a 0,1% foram encontrados na estimativa do índice de confiabilidade ß. Para o caso da estabilidade de frente foram comparadas duas soluções da análise limite da plasticidade contra a solução obtida numericamente. Já no caso de queda de bloco, verificou-se que as recomendações de parcialização do sistema de classificação geomecânica Q incrementa consideravelmente a segurança da escavação conduzindo a padrões da prática mais avançada, por exemplo, de um ß de 2,04 para a escavação a seção plena até 4,43 para o vão recomendado. No estudo de caso, a segurança da caverna da UHE-PAIV foi estudada perante a queda de blocos utilizando o software Unwedge. A probabilidade de falha individual foi integrada no comprimento da caverna e o conceito de sistema foi utilizado para estimar a probabilidade de falha global. A caverna apresentou uma probabilidade de falha global de 3,11 a 3,22% e um risco de 7,22x10-3 x C e 7,29x10-3 x C, sendo C o custo de falha de um bloco de grandes dimensões. O bloco mais crítico apresentou um ß de 3,63. No estudo de otimização foram utilizadas duas variáveis de projeto, a espessura do concreto projetado e o número de tirantes por metro quadrado. A configuração ótima foi encontrada como o par [t, nb] que minimiza a função de custo total. Também, um estudo de sensibilidade foi realizado para avaliar as influências de alguns parâmetros no projeto ótimo da escavação. Finalmente, os resultados obtidos sugerem que as análises quantitativas de risco, como base para a avaliação e gestão de risco, podem e devem ser consideradas como diretriz da prática da engenharia geotécnica, uma vez que estas análises conciliam os conceitos básicos de projeto como eficiência mecânica, segurança e viabilidade financeira. Assim, a quantificação de risco é plenamente possível. / In this thesis the author establishes a systematic method for quantifying the risk in underground structures in fractured rock masses using structural reliability concepts in an efficient way. The method is applied to the case study of the underground cavern of Paulo Afonso IV Hydroelectrical Power Station UHE-PAIV. Additionally, an optimization study was conducted in order to show a potential application of the method. The estimation of the risk was done according to the recommendations of the United Nations Disaster Relief Organization UNDRO where risk can be estimated as the convolution between the hazard, vulnerability and losses functions. FORM and SORM were used as approximation methods for the reliability quantification by means of Direct Coupling and Quadratic Polynomial Response Surfaces. A Monte Carlo simulation was also used to quantify the reliability of the cavern UHE-PAIV because of the presence of multiple failure modes in the numerical model. In this study 3 types of threads were evaluated: excessive wall convergence, face stability and wedge block fall. Hazard functions were built relative to the thread intensities such as wall convergence ratio or block size. In the case of excessive wall convergence a deep circular tunnel was studied meaning to compare the quality of the approximation of the reliability technique (FLAC3D with direct coupling) to the exact solution. Errors below 0.1% were found in the reliability index ß estimation. The reliability of the face stability was evaluated using two limit analysis solutions against the numeric estimation. For the block stability it was verified that the sequential excavation recommended by the Q system increases considerably the reliability of the excavation leading safety to modern standard levels, e.g. from a ß equal to 2.04 for a full section excavation to 4.43 for a partial excavation. In the case study of the UHE-PAIV, the reliability of the underground cavern was estimated using the commercial software Unwedge. The probability of failure of individual blocks was integrated along the length of the cavern and the concept of structural system was used to estimate the global probability of failure. The cavern presented a probability of failure of 3.11% to 3.22% and a risk of 7.22x10-3 x C and 7.29x10-3 x C - where C is the cost of failure of a large block. The critical individual block showed a ß equal to 3.63. The optimization was performed considering two design variables − liner thickness and number of bolt per square meter. The optimal design was found as the pair, [t, nb] which minimizes the total cost function. Also, a sensibility analysis was conducted to understand the influence of some parameters in the location of the optimal excavation design. Concluding, the results obtained here suggest that the quantitative risk analyses, as a base for the risk assessment and management, can and must be considered as a north for the practice of geotechnical engineering owing that these analyses reconcile the basic concepts of mechanical efficiency, safety and financial feasibility. Thus, risk quantification is fully affordable.

Nesta tese o autor estabelece um método sistemático de quantificação de risco em obras subterrâneas em maciço rochoso fraturado utilizando de maneira eficiente conceitos de confiabilidade estrutural. O método é aplicado a um caso de estudo real da caverna da Usina Hidrelétrica Paulo Afonso IV, UHE-PAIV. Adicionalmente, um estudo de otimização de projeto com base em risco quantitativo também é apresentado para mostrar as potencialidades do método. A estimativa do risco foi realizada de acordo com as recomendações da Organização de Auxílio contra Desastres das Nações Unidas, UNDRO, onde o risco pode ser estimado como a convolução entre as funções de perigo, vulnerabilidade e perdas. Para a quantificação da confiabilidade foram utilizados os métodos de aproximação FORM e SORM com uso de acoplamento direto e de superfícies de resposta polinomial quadráticas. A simulação de Monte Carlo também foi utilizada para a quantificação da confiabilidade no estudo de caso da UHE-PAIV devido à ocorrência de múltiplos modos de falha simultâneos. Foram avaliadas as ameaças de convergência excessiva das paredes, colapso da frente de escavação e a queda de blocos. As funções de perigo foram estimadas em relação à intensidade da ameaça como razão de deslocamento da parede ou volume do bloco. No caso da convergência excessiva, um túnel circular profundo foi estudado com o intuito de comparar a qualidade de aproximação da técnica numérica (FLAC3D com acoplamento direto) em relação à solução exata. Erros inferiores a 0,1% foram encontrados na estimativa do índice de confiabilidade ß. Para o caso da estabilidade de frente foram comparadas duas soluções da análise limite da plasticidade contra a solução obtida numericamente. Já no caso de queda de bloco, verificou-se que as recomendações de parcialização do sistema de classificação geomecânica Q incrementa consideravelmente a segurança da escavação conduzindo a padrões da prática mais avançada, por exemplo, de um ß de 2,04 para a escavação a seção plena até 4,43 para o vão recomendado. No estudo de caso, a segurança da caverna da UHE-PAIV foi estudada perante a queda de blocos utilizando o software Unwedge. A probabilidade de falha individual foi integrada no comprimento da caverna e o conceito de sistema foi utilizado para estimar a probabilidade de falha global. A caverna apresentou uma probabilidade de falha global de 3,11 a 3,22% e um risco de 7,22x10-3 x C e 7,29x10-3 x C, sendo C o custo de falha de um bloco de grandes dimensões. O bloco mais crítico apresentou um ß de 3,63. No estudo de otimização foram utilizadas duas variáveis de projeto, a espessura do concreto projetado e o número de tirantes por metro quadrado. A configuração ótima foi encontrada como o par [t, nb] que minimiza a função de custo total. Também, um estudo de sensibilidade foi realizado para avaliar as influências de alguns parâmetros no projeto ótimo da escavação. Finalmente, os resultados obtidos sugerem que as análises quantitativas de risco, como base para a avaliação e gestão de risco, podem e devem ser consideradas como diretriz da prática da engenharia geotécnica, uma vez que estas análises conciliam os conceitos básicos de projeto como eficiência mecânica, segurança e viabilidade financeira. Assim, a quantificação de risco é plenamente possível. / In this thesis the author establishes a systematic method for quantifying the risk in underground structures in fractured rock masses using structural reliability concepts in an efficient way. The method is applied to the case study of the underground cavern of Paulo Afonso IV Hydroelectrical Power Station UHE-PAIV. Additionally, an optimization study was conducted in order to show a potential application of the method. The estimation of the risk was done according to the recommendations of the United Nations Disaster Relief Organization UNDRO where risk can be estimated as the convolution between the hazard, vulnerability and losses functions. FORM and SORM were used as approximation methods for the reliability quantification by means of Direct Coupling and Quadratic Polynomial Response Surfaces. A Monte Carlo simulation was also used to quantify the reliability of the cavern UHE-PAIV because of the presence of multiple failure modes in the numerical model. In this study 3 types of threads were evaluated: excessive wall convergence, face stability and wedge block fall. Hazard functions were built relative to the thread intensities such as wall convergence ratio or block size. In the case of excessive wall convergence a deep circular tunnel was studied meaning to compare the quality of the approximation of the reliability technique (FLAC3D with direct coupling) to the exact solution. Errors below 0.1% were found in the reliability index ß estimation. The reliability of the face stability was evaluated using two limit analysis solutions against the numeric estimation. For the block stability it was verified that the sequential excavation recommended by the Q system increases considerably the reliability of the excavation leading safety to modern standard levels, e.g. from a ß equal to 2.04 for a full section excavation to 4.43 for a partial excavation. In the case study of the UHE-PAIV, the reliability of the underground cavern was estimated using the commercial software Unwedge. The probability of failure of individual blocks was integrated along the length of the cavern and the concept of structural system was used to estimate the global probability of failure. The cavern presented a probability of failure of 3.11% to 3.22% and a risk of 7.22x10-3 x C and 7.29x10-3 x C - where C is the cost of failure of a large block. The critical individual block showed a ß equal to 3.63. The optimization was performed considering two design variables − liner thickness and number of bolt per square meter. The optimal design was found as the pair, [t, nb] which minimizes the total cost function. Also, a sensibility analysis was conducted to understand the influence of some parameters in the location of the optimal excavation design. Concluding, the results obtained here suggest that the quantitative risk analyses, as a base for the risk assessment and management, can and must be considered as a north for the practice of geotechnical engineering owing that these analyses reconcile the basic concepts of mechanical efficiency, safety and financial feasibility. Thus, risk quantification is fully affordable.

Au début de notre ère, les hautes terres du sud du Brésil furent occupées par des peuples précoloniaux qui édifièrent de grandes constructions en terre sur le sol - tels que monticules funéraires, dépôts de terre, murs, remblais, terrassements - et sous le sol - les structures souterraines et semi-souterraines. Dans le but d'obtenir davantage de données et de mieux comprendre le mode de vie de ces populations, ce travail s'est basé sur l'approche de l'archéologie du paysage lors des fouilles entreprises dans l'ensemble des structures édifiées du site RS-AN-03 et de la prospection archéologique dans une zone pilote de 1 500 km² dans la région de Bom Jesus, située dans l'État le plus méridional du Brésil. Envisageant le paysage comme un participant actif dans les actions sociales humaines, cette approche a donné à l'archéologie des hautes terres brésiliennes un nouveau support interprétatif. Elle a également permis d'élaborer un modèle de comportement territorial à partir des analyses des niveaux intrasite, intersite et régional, ainsi qu'un nouveau discours narratif sur l'occupation humaine précoloniale. Établi à partir du constat d'expansion de la forêt d'araucarias sur un paysage de champs, concomitante de l'expansion et de la fixation des groupes humains vers 1 500 avant J.C. environ, ce discours met en évidence une dynamique socio-environnementale sur le Planalto das Araucárias, un aspect anthropique du paysage. La concentration élevée des ressources disponibles et assurées annuellement a favorisé la concentration de personnes, qui construisirent des villages et de grands hameaux à caractère permanent et constituèrent des sociétés complexes, hiérarchisées, avec des territoires délimités et protégés. / The highlands in southern Brazil were settled around the beginning of our era by precolonial peoples who built large earth buildings on the ground in the form of small burial hills, earth deposits, walls, landfills, terraces, in addition to building underground and semiunderground structures. In order to get more information and better understand the way of life of these populations, the landscape archeology approach was used to make diggings in the set of buildings on site RS-AN-03 and on the archeological survey conducted at a pilot area of 1,500 Km² located in Bom Jesus in the southernmost Brazilian state. This approach, which views the landscape as an active player in human social actions, provided a new interpretative contribution to the archeology of Brazilian highlands, enabling the design of a territory behavior model based on the analyses performed within sites, across sites and at the regional level and a new narrative discourse on pre-colonial human settlements. This discourse, made from the realization of the expansion of araucaria forecast on a grassland landscape that took place together with the expansion and settlement of human groups around 1,500 BC shows evidence of a social-environmental dynamics at the araucaria plateau, a landscape anthropogenization. The high concentration of resources available and ensured all year round enabled the concentration of people who built permanent towns and larges villages and constituted complex hierarchized societies that kept their territories delimited and protected.

Au début de notre ère, les hautes terres du sud du Brésil furent occupées par des peuples précoloniaux qui édifièrent de grandes constructions en terre sur le sol - tels que monticules funéraires, dépôts de terre, murs, remblais, terrassements - et sous le sol - les structures souterraines et semi-souterraines. Dans le but d'obtenir davantage de données et de mieux comprendre le mode de vie de ces populations, ce travail s'est basé sur l'approche de l'archéologie du paysage lors des fouilles entreprises dans l'ensemble des structures édifiées du site RS-AN-03 et de la prospection archéologique dans une zone pilote de 1 500 km² dans la région de Bom Jesus, située dans l'État le plus méridional du Brésil. Envisageant le paysage comme un participant actif dans les actions sociales humaines, cette approche a donné à l'archéologie des hautes terres brésiliennes un nouveau support interprétatif. Elle a également permis d'élaborer un modèle de comportement territorial à partir des analyses des niveaux intrasite, intersite et régional, ainsi qu'un nouveau discours narratif sur l'occupation humaine précoloniale. Établi à partir du constat d'expansion de la forêt d'araucarias sur un paysage de champs, concomitante de l'expansion et de la fixation des groupes humains vers 1 500 avant J.C. environ, ce discours met en évidence une dynamique socio-environnementale sur le Planalto das Araucárias, un aspect anthropique du paysage. La concentration élevée des ressources disponibles et assurées annuellement a favorisé la concentration de personnes, qui construisirent des villages et de grands hameaux à caractère permanent et constituèrent des sociétés complexes, hiérarchisées, avec des territoires délimités et protégés. / The highlands in southern Brazil were settled around the beginning of our era by precolonial peoples who built large earth buildings on the ground in the form of small burial hills, earth deposits, walls, landfills, terraces, in addition to building underground and semiunderground structures. In order to get more information and better understand the way of life of these populations, the landscape archeology approach was used to make diggings in the set of buildings on site RS-AN-03 and on the archeological survey conducted at a pilot area of 1,500 Km² located in Bom Jesus in the southernmost Brazilian state. This approach, which views the landscape as an active player in human social actions, provided a new interpretative contribution to the archeology of Brazilian highlands, enabling the design of a territory behavior model based on the analyses performed within sites, across sites and at the regional level and a new narrative discourse on pre-colonial human settlements. This discourse, made from the realization of the expansion of araucaria forecast on a grassland landscape that took place together with the expansion and settlement of human groups around 1,500 BC shows evidence of a social-environmental dynamics at the araucaria plateau, a landscape anthropogenization. The high concentration of resources available and ensured all year round enabled the concentration of people who built permanent towns and larges villages and constituted complex hierarchized societies that kept their territories delimited and protected.

Au début de notre ère, les hautes terres du sud du Brésil furent occupées par des peuples précoloniaux qui édifièrent de grandes constructions en terre sur le sol - tels que monticules funéraires, dépôts de terre, murs, remblais, terrassements - et sous le sol - les structures souterraines et semi-souterraines. Dans le but d'obtenir davantage de données et de mieux comprendre le mode de vie de ces populations, ce travail s'est basé sur l'approche de l'archéologie du paysage lors des fouilles entreprises dans l'ensemble des structures édifiées du site RS-AN-03 et de la prospection archéologique dans une zone pilote de 1 500 km² dans la région de Bom Jesus, située dans l'État le plus méridional du Brésil. Envisageant le paysage comme un participant actif dans les actions sociales humaines, cette approche a donné à l'archéologie des hautes terres brésiliennes un nouveau support interprétatif. Elle a également permis d'élaborer un modèle de comportement territorial à partir des analyses des niveaux intrasite, intersite et régional, ainsi qu'un nouveau discours narratif sur l'occupation humaine précoloniale. Établi à partir du constat d'expansion de la forêt d'araucarias sur un paysage de champs, concomitante de l'expansion et de la fixation des groupes humains vers 1 500 avant J.C. environ, ce discours met en évidence une dynamique socio-environnementale sur le Planalto das Araucárias, un aspect anthropique du paysage. La concentration élevée des ressources disponibles et assurées annuellement a favorisé la concentration de personnes, qui construisirent des villages et de grands hameaux à caractère permanent et constituèrent des sociétés complexes, hiérarchisées, avec des territoires délimités et protégés. / The highlands in southern Brazil were settled around the beginning of our era by precolonial peoples who built large earth buildings on the ground in the form of small burial hills, earth deposits, walls, landfills, terraces, in addition to building underground and semiunderground structures. In order to get more information and better understand the way of life of these populations, the landscape archeology approach was used to make diggings in the set of buildings on site RS-AN-03 and on the archeological survey conducted at a pilot area of 1,500 Km² located in Bom Jesus in the southernmost Brazilian state. This approach, which views the landscape as an active player in human social actions, provided a new interpretative contribution to the archeology of Brazilian highlands, enabling the design of a territory behavior model based on the analyses performed within sites, across sites and at the regional level and a new narrative discourse on pre-colonial human settlements. This discourse, made from the realization of the expansion of araucaria forecast on a grassland landscape that took place together with the expansion and settlement of human groups around 1,500 BC shows evidence of a social-environmental dynamics at the araucaria plateau, a landscape anthropogenization. The high concentration of resources available and ensured all year round enabled the concentration of people who built permanent towns and larges villages and constituted complex hierarchized societies that kept their territories delimited and protected.