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Dissertation
Développement d'un outil d'aide à la décision pour la mise en place de systèmes d'irrigation familiaux pressurisés dans la région de Huánuco, Pérou
Authors: --- --- --- --- --- et al.
Year: 2022 Publisher: Liège Université de Liège (ULiège)

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Abstract

Description du sujet Sur base de l'évaluation des systèmes d'irrigation pressurisés implémentés par l'ONG Iles de Paix Pérou et des habitudes d'irrigation des producteurs, des améliorations d'installation des systèmes et l'utilisation de calendriers d'irrigation sont proposées.

Objectif Ce travail vise à améliorer l'efficience de l'utilisation en eau dans la région d'étude. Pour ce faire, deux objectifs spécifiques sont appréhendés : améliorer l'installation des systèmes afin de permettre une plus grande uniformité de distribution de l'eau (UDE) sur parcelle, et mettre en place des calendriers d'irrigation afin d'optimiser les quantités d'eau irriguées dans la région. 

Localisation La zone d'étude comprend les communes de Yacus et Yarumayo, zones rurales de la Cordillère des Andes situées au Sud-Ouest du district de Huánuco, Pérou, Amérique latine.

Méthode Des mesures des hauteur et position de l'asperseur par rapport au sol apprécient son installation tandis que la pression et sa variation indiquent son fonctionnement adéquat. La différence d'altitude entre l'asperseur et le réservoir ainsi que la longueur, les types et diamètres de tuyaux utilisés permettent de discerner la tendance générale d'installation. La mesure du débit est comparée à la capacité d'infiltration du sol afin de mettre en évidence d'éventuels ruissellements. Le rayon d'influence permet de déterminer la surface irriguée tandis que sa variation permet d'évaluer d'éventuelles variations dues à la pente. L'utilisation de récipients permet, enfin, de déterminer des paramètres d'UDE : coefficient d'uniformité de Christiansen (CU), distribution d'uniformité du quartile inférieur (DUlq) et coefficient de variation (CV). Toutes ces variables et paramètres sont utilisés via une Analyse en Composante Principale (ACP) afin de déterminer les caractéristiques influençant le plus l'UDE de la région. Suite à ce résultat, différentes modalités d'installation sont testées. Enfin, les habitudes d'irrigation des producteurs sont comparées à des calendriers optimisés via AquaCrop-OSPy en vue de l'amélioration de l'utilisation de l'eau.

Résultats Les installations dans la région comprennent un asperseur, une ligne primaire et une prise de tête. Elles consistent en des réservoirs, des caisses brise charge, des ruisseaux et des canaux d'irrigation. Les paramètres d'UDE moyens de l'ensemble des systèmes sont de 52% (CU) de 0.44 (DUlq) et de 0.63 (CV). L'ACP indique que la hauteur de l'asperseur, le rayon d'influence et la pression sont les paramètres les plus déterminants pour une amélioration de l'UDE. Le positionnement de l'asperseur à la perpendiculaire du sol améliore de 16% le CU. L'utilisation d'un asperseur dimensionné l'augmente encore de 14%. Enfin, l'utilisation de calendriers d'irrigation permettrait de réduire de 4 à 40% l'utilisation de l'eau pour des calendriers « fixes » et des systèmes non améliorés, de 6 à 52% pour des calendriers « fixes » et des systèmes améliorés et entre 74 et 89% pour des calendriers « libres ».

Conclusion L'amélioration de l'utilisation en eau dans la région passe par l'amélioration du dispositif des systèmes via (i) une installation de l'asperseur à la perpendiculaire de la pente, (ii) l'utilisation d'un asperseur dont les caractéristiques sont connues et correctement dimensionnées et (iii) l'implémentation de réservoir ou de caisse brise charge à des altitudes dimensionnées par rapport à la position de l'asperseur. Cela permet une augmentation de l'uniformité de distribution sur la parcelle. L'utilisation de l'eau est également améliorée via l'utilisation de calendriers d'irrigation permettant de réduire la quantité d'eau utilisée.


Book
Environment-Friendly Construction Materials.
Authors: --- --- ---
ISBN: 3039210173 3039210165 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Construction materials are the most widely used materials for civil infrastructure in our daily lives. However, from an environmental point of view, they consume a huge amount of natural resources and generate the majority of greenhouse gasses. Therefore, many new and novel technologies for designing environmentally friendly construction materials have been developed recently. This Special Issue, “Environment-Friendly Construction Materials”, has been proposed and organized as a means to present recent developments in the field of construction materials. It covers a wide range of selected topics on construction materials.

Keywords

fluorescence spectrum --- microstructure --- regeneration --- sensitivity analysis --- asphalt mixes --- limestone aggregates --- bio-oil --- plateau value of dissipated strain energy ratio --- diatomite --- water-leaching pretreatment --- fatigue performance --- ultra-thin wearing course --- recycling aggregate --- design optimization --- induction heating --- vibration noise consumption --- bitumen --- relaxation --- viscous-elastic temperature --- field evaluation --- healing agents --- transmittance --- Ca-alginate microcapsules --- artificially aged asphalt mixture --- sequencing batch Chlorella reactor --- waste concrete --- plant ash lixivium --- steel fiber --- ultra-high performance concrete --- titanate coupling agent --- SEM --- self-healing --- physical properties --- porous pumice --- thermal–mechanical properties --- aggregate morphology --- asphalt mortar --- adhesion energy --- styrene–butadiene–styrene (SBS) modified bitumen --- water solute exposure --- emulsified asphalt --- demulsification speed --- mineral-asphalt mixtures --- aging processes --- phase change materials --- surface texture --- long-term drying shrinkage --- contact angle --- aging depth --- asphalt --- calcium alginate capsules --- nitrogen and phosphorus removal --- micro-morphology --- rice husk ash --- low-temperature --- cement --- hydrophobic nanosilica --- asphalt mixture --- thickness combinations --- layered double hydroxide --- initial self-healing temperature --- environmentally friendly construction materials --- epoxidized soybean oil --- limestone --- chemical evolutions --- temperature sensitivity characteristics --- micro-surfacing --- cement emulsified asphalt mixture --- dynamic characteristics --- high-strength concrete --- flame retardant --- durability --- creep --- damping --- damage constitutive model --- Ultra-High Performance Concrete (UHPC) --- granite aggregate --- diatomite-modified asphalt mixture --- healing model --- asphalt combustion --- freeze-thaw cycle --- SBS-modified bitumen --- workability --- graphene --- flow behavior index --- fluidity --- parametrization --- fatigue property --- rankinite --- railway application --- crystallization sensitivity --- aqueous solute compositions --- pozzolanic reaction --- self-healing asphalt --- recycled material --- artificial neural network --- rheological properties --- molecular dynamic simulation --- building envelopes --- aluminum hydroxide --- crumb rubber --- optimization --- viscoelasticity --- building energy conservation --- diffusing --- anti-rutting agent --- molecular bridge --- engineered cementitious composites (ECC) --- pavement performance --- morphology --- colloidal structure --- hydrophilic nanosilica --- construction materials --- road engineering --- laboratory evaluation --- rejuvenator --- fatigue equation --- aggregates --- three-point bending fatigue test --- energy-based approach --- aggregate from sanitary ceramic wastes --- polyacrylic acid --- mastic --- CO2 --- specific surface area --- aggregate image measurement system --- solubilizer --- flexibility --- simplex lattice design --- SBS/CRP-modified bitumen --- water stability --- fatigue life --- rejuvenating systems --- skid-resistance --- reclaimed asphalt pavement --- rheology --- hydration characteristic --- surface energy --- modified asphalt materials --- asphalt pavement --- stripping test --- SOD --- tensile stresses --- ultraviolet radiation --- basalt fiber --- “blue-shift” --- polyvinyl alcohol --- sanitary ceramics --- dynamic moduli --- aggregate characteristics --- compound modify --- expanded graphite --- steel slag --- induced healing --- thermal property --- effective heating depth --- dissipated strain energy --- MDA --- mechanical behavior --- plateau value of permanent deformation ratio --- long-term field service --- crack healing --- desulphurization gypsum residues --- pavement failure --- rejuvenation --- interfacial transition zone --- combination --- polyethylene glycol --- adsorption --- tensile strains --- cold recycled asphalt mixture --- resistance to deformations --- asphalt-aggregate adhesion --- viscoelastic properties --- damage evolution --- carbonation --- microwave heating --- amorphous silica --- high-modulus asphalt mixture (HMAM) --- hot mix asphalt containing recycled concrete aggregate --- microfluidic --- dynamic responses --- concrete --- asphalt mastic --- crumb rubber powder --- response surface methodology --- nanomaterial --- self-compacting concrete (SCC) --- rutting factor --- X-ray computed tomography --- fiber modification --- overlay tester --- rubber modified asphalt --- ageing --- aged bitumen --- aged asphalt --- recycling --- damage characteristics --- dynamic tests --- permeation --- ageing resistance


Book
Environment-Friendly Construction Materials.
Authors: --- --- ---
ISBN: 3039210130 3039210122 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Construction materials are the most widely used materials for civil infrastructure in our daily lives. However, from an environmental point of view, they consume a huge amount of natural resources and generate the majority of greenhouse gasses. Therefore, many new and novel technologies for designing environmentally friendly construction materials have been developed recently. This Special Issue, “Environment-Friendly Construction Materials”, has been proposed and organized as a means to present recent developments in the field of construction materials. It covers a wide range of selected topics on construction materials.

Keywords

fluorescence spectrum --- microstructure --- regeneration --- sensitivity analysis --- asphalt mixes --- limestone aggregates --- bio-oil --- plateau value of dissipated strain energy ratio --- diatomite --- water-leaching pretreatment --- fatigue performance --- ultra-thin wearing course --- recycling aggregate --- design optimization --- induction heating --- vibration noise consumption --- bitumen --- relaxation --- viscous-elastic temperature --- field evaluation --- healing agents --- transmittance --- Ca-alginate microcapsules --- artificially aged asphalt mixture --- sequencing batch Chlorella reactor --- waste concrete --- plant ash lixivium --- steel fiber --- ultra-high performance concrete --- titanate coupling agent --- SEM --- self-healing --- physical properties --- porous pumice --- thermal–mechanical properties --- aggregate morphology --- asphalt mortar --- adhesion energy --- styrene–butadiene–styrene (SBS) modified bitumen --- water solute exposure --- emulsified asphalt --- demulsification speed --- mineral-asphalt mixtures --- aging processes --- phase change materials --- surface texture --- long-term drying shrinkage --- contact angle --- aging depth --- asphalt --- calcium alginate capsules --- nitrogen and phosphorus removal --- micro-morphology --- rice husk ash --- low-temperature --- cement --- hydrophobic nanosilica --- asphalt mixture --- thickness combinations --- layered double hydroxide --- initial self-healing temperature --- environmentally friendly construction materials --- epoxidized soybean oil --- limestone --- chemical evolutions --- temperature sensitivity characteristics --- micro-surfacing --- cement emulsified asphalt mixture --- dynamic characteristics --- high-strength concrete --- flame retardant --- durability --- creep --- damping --- damage constitutive model --- Ultra-High Performance Concrete (UHPC) --- granite aggregate --- diatomite-modified asphalt mixture --- healing model --- asphalt combustion --- freeze-thaw cycle --- SBS-modified bitumen --- workability --- graphene --- flow behavior index --- fluidity --- parametrization --- fatigue property --- rankinite --- railway application --- crystallization sensitivity --- aqueous solute compositions --- pozzolanic reaction --- self-healing asphalt --- recycled material --- artificial neural network --- rheological properties --- molecular dynamic simulation --- building envelopes --- aluminum hydroxide --- crumb rubber --- optimization --- viscoelasticity --- building energy conservation --- diffusing --- anti-rutting agent --- molecular bridge --- engineered cementitious composites (ECC) --- pavement performance --- morphology --- colloidal structure --- hydrophilic nanosilica --- construction materials --- road engineering --- laboratory evaluation --- rejuvenator --- fatigue equation --- aggregates --- three-point bending fatigue test --- energy-based approach --- aggregate from sanitary ceramic wastes --- polyacrylic acid --- mastic --- CO2 --- specific surface area --- aggregate image measurement system --- solubilizer --- flexibility --- simplex lattice design --- SBS/CRP-modified bitumen --- water stability --- fatigue life --- rejuvenating systems --- skid-resistance --- reclaimed asphalt pavement --- rheology --- hydration characteristic --- surface energy --- modified asphalt materials --- asphalt pavement --- stripping test --- SOD --- tensile stresses --- ultraviolet radiation --- basalt fiber --- “blue-shift” --- polyvinyl alcohol --- sanitary ceramics --- dynamic moduli --- aggregate characteristics --- compound modify --- expanded graphite --- steel slag --- induced healing --- thermal property --- effective heating depth --- dissipated strain energy --- MDA --- mechanical behavior --- plateau value of permanent deformation ratio --- long-term field service --- crack healing --- desulphurization gypsum residues --- pavement failure --- rejuvenation --- interfacial transition zone --- combination --- polyethylene glycol --- adsorption --- tensile strains --- cold recycled asphalt mixture --- resistance to deformations --- asphalt-aggregate adhesion --- viscoelastic properties --- damage evolution --- carbonation --- microwave heating --- amorphous silica --- high-modulus asphalt mixture (HMAM) --- hot mix asphalt containing recycled concrete aggregate --- microfluidic --- dynamic responses --- concrete --- asphalt mastic --- crumb rubber powder --- response surface methodology --- nanomaterial --- self-compacting concrete (SCC) --- rutting factor --- X-ray computed tomography --- fiber modification --- overlay tester --- rubber modified asphalt --- ageing --- aged bitumen --- aged asphalt --- recycling --- damage characteristics --- dynamic tests --- permeation --- ageing resistance


Book
Environment-Friendly Construction Materials.
Authors: --- --- ---
ISBN: 3039210157 3039210149 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

Loading...
Export citation

Choose an application

Bookmark

Abstract

Construction materials are the most widely used materials for civil infrastructure in our daily lives. However, from an environmental point of view, they consume a huge amount of natural resources and generate the majority of greenhouse gasses. Therefore, many new and novel technologies for designing environmentally friendly construction materials have been developed recently. This Special Issue, “Environment-Friendly Construction Materials”, has been proposed and organized as a means to present recent developments in the field of construction materials. It covers a wide range of selected topics on construction materials.

Keywords

fluorescence spectrum --- microstructure --- regeneration --- sensitivity analysis --- asphalt mixes --- limestone aggregates --- bio-oil --- plateau value of dissipated strain energy ratio --- diatomite --- water-leaching pretreatment --- fatigue performance --- ultra-thin wearing course --- recycling aggregate --- design optimization --- induction heating --- vibration noise consumption --- bitumen --- relaxation --- viscous-elastic temperature --- field evaluation --- healing agents --- transmittance --- Ca-alginate microcapsules --- artificially aged asphalt mixture --- sequencing batch Chlorella reactor --- waste concrete --- plant ash lixivium --- steel fiber --- ultra-high performance concrete --- titanate coupling agent --- SEM --- self-healing --- physical properties --- porous pumice --- thermal–mechanical properties --- aggregate morphology --- asphalt mortar --- adhesion energy --- styrene–butadiene–styrene (SBS) modified bitumen --- water solute exposure --- emulsified asphalt --- demulsification speed --- mineral-asphalt mixtures --- aging processes --- phase change materials --- surface texture --- long-term drying shrinkage --- contact angle --- aging depth --- asphalt --- calcium alginate capsules --- nitrogen and phosphorus removal --- micro-morphology --- rice husk ash --- low-temperature --- cement --- hydrophobic nanosilica --- asphalt mixture --- thickness combinations --- layered double hydroxide --- initial self-healing temperature --- environmentally friendly construction materials --- epoxidized soybean oil --- limestone --- chemical evolutions --- temperature sensitivity characteristics --- micro-surfacing --- cement emulsified asphalt mixture --- dynamic characteristics --- high-strength concrete --- flame retardant --- durability --- creep --- damping --- damage constitutive model --- Ultra-High Performance Concrete (UHPC) --- granite aggregate --- diatomite-modified asphalt mixture --- healing model --- asphalt combustion --- freeze-thaw cycle --- SBS-modified bitumen --- workability --- graphene --- flow behavior index --- fluidity --- parametrization --- fatigue property --- rankinite --- railway application --- crystallization sensitivity --- aqueous solute compositions --- pozzolanic reaction --- self-healing asphalt --- recycled material --- artificial neural network --- rheological properties --- molecular dynamic simulation --- building envelopes --- aluminum hydroxide --- crumb rubber --- optimization --- viscoelasticity --- building energy conservation --- diffusing --- anti-rutting agent --- molecular bridge --- engineered cementitious composites (ECC) --- pavement performance --- morphology --- colloidal structure --- hydrophilic nanosilica --- construction materials --- road engineering --- laboratory evaluation --- rejuvenator --- fatigue equation --- aggregates --- three-point bending fatigue test --- energy-based approach --- aggregate from sanitary ceramic wastes --- polyacrylic acid --- mastic --- CO2 --- specific surface area --- aggregate image measurement system --- solubilizer --- flexibility --- simplex lattice design --- SBS/CRP-modified bitumen --- water stability --- fatigue life --- rejuvenating systems --- skid-resistance --- reclaimed asphalt pavement --- rheology --- hydration characteristic --- surface energy --- modified asphalt materials --- asphalt pavement --- stripping test --- SOD --- tensile stresses --- ultraviolet radiation --- basalt fiber --- “blue-shift” --- polyvinyl alcohol --- sanitary ceramics --- dynamic moduli --- aggregate characteristics --- compound modify --- expanded graphite --- steel slag --- induced healing --- thermal property --- effective heating depth --- dissipated strain energy --- MDA --- mechanical behavior --- plateau value of permanent deformation ratio --- long-term field service --- crack healing --- desulphurization gypsum residues --- pavement failure --- rejuvenation --- interfacial transition zone --- combination --- polyethylene glycol --- adsorption --- tensile strains --- cold recycled asphalt mixture --- resistance to deformations --- asphalt-aggregate adhesion --- viscoelastic properties --- damage evolution --- carbonation --- microwave heating --- amorphous silica --- high-modulus asphalt mixture (HMAM) --- hot mix asphalt containing recycled concrete aggregate --- microfluidic --- dynamic responses --- concrete --- asphalt mastic --- crumb rubber powder --- response surface methodology --- nanomaterial --- self-compacting concrete (SCC) --- rutting factor --- X-ray computed tomography --- fiber modification --- overlay tester --- rubber modified asphalt --- ageing --- aged bitumen --- aged asphalt --- recycling --- damage characteristics --- dynamic tests --- permeation --- ageing resistance

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