Task 1d: River basin management Task leader: LNEC; Involved partners - PowerPoint PPT Presentation

Task 1d: River basin management Task leader: LNEC; Involved partners EU: ISPRA, DTU, EWA Task 1e: Water for energy Task leader: LNEC; Involved partners EU: DTU, EWA, EDP/Labelec

Task 1a: Agricultural Water Management Task leader: ISPRA; Involved partners EU: LNEC, DTU, EWA In the scope of LNEC investigations on diffuse pollution prevention and monitoring, the main goals have been to:  Implement the measures necessary to prevent or limit the input of pollutants into groundwater and to prevent the deterioration of the status of all bodies of groundwater ….  Contribute to support future decisions in terms of more adequate policies regarding rural land use planning (type of crops and associated fertilizers and treatment techniques), taking into consideration the protection of the environment based on vulnerability and risk concepts and a sustainable and integrated water management. 2

Monitoring devices : Runoff, soil, vadose zone, groundwater, surface Vadose zone sampling water Soil humidity Runoff Soil water tension Groundwater 3

Monitoring results : runoff and vadose zone - and Electrical cond. Runoff: NO 3 - Vadose zone: NO 3 1600 25 de Maio 25-05-2006 Herdade da Mancoca 31 de Maio 600 16-06-2006 1400 Cultura do milho 11 de Junho 22-06-2006 550 NO3 18 de Junho 28-07-2006 500 25 de Junho 1200 07-08-2006 09 de Julho 450 30-08-2006 16 de Julho NO3 (mg/l) e CE (uS/cm) 1000 400 07-09-2006 23 de Julho Nitratos (mg/l) 13-09-2006 350 06 de Agosto 800 13 de Agosto 300 20 de Agosto 250 27 de Agosto 600 200 3 de Setembro 150 10 de Setembro 400 100 50 200 0 20 40 60 0 Profundidade (cm) NO3 CE 4

Numerical modelling of land use scenarios : groundwater content in nitrates in 2015 Transport modelling Scenario 4D (in 2015) Scenario 1A (in 2015) 5

Task 1d: River basin management Task leader: LNEC; Involved partners EU: ISPRA, DTU, EWA Innovative groundwater artificial recharge techniques and experiments. Schemes to solve WR problems in EU and China semi arid regions**** ***João Paulo Lobo Ferreira (lferreira@lnec.pt) * http://www.marsol.eu

ARTIFICIAL AQUIFER RECHARGE EXPERIMENTS IN THE PORTUGUESE CAMPINA DE FARO CASE-STUDY AREA, DEVELOPED IN THE FRAMEWORK OF GABARDINE PROJECT Aquifer system of Campina de Faro area 86 km 2 Algarve region http://snirh.inag.pt M12 - AQUIFER SYSTEM OF CAMPINA DE FARO Almeida et al (2000) SNIRH

Main Results/Conclusions • Methodology to identify preliminary candidate areas to implement artificial recharge (GABA-IFI Index) • Artificial recharge infiltration and tracer tests in Campina de Faro 1) Areal Gordo test site 2A) Areal Gordo test 3 Infiltration basins site Injection tests in large diameter well “nora” 3) Carreiros test site 2 Infiltration basins in the river bed 2B) Areal Gordo test site Injection test in medium diameter well Curva de chegada do traçador ao piezómetro LNEC1 durante o ensaio realizado em Maio Parâmetros de qualidade da água medidos no piezómetro LNEC1, durante a estação seca (Carreiros) na Bacia de Carreiros 5000 4 55 2400 Cl (mg/L) 50 4500 Condutividade eléctrica (us/cm) 5 2200 NO3 (mg/L) 45 4000 2000 Escoamento superficial no rio 6 Condutividade eléctrica (us/cm) Fim do ensaio Condutividade eléctrica (us/cm) Alteração causada 40 3500 1800 Profundidade ao nível (m) 11/05 16h:25 por ocorrência de Cl e NO3 (mg/L) 7 1600 escoamanto superficial 35 Inicio do ensaio Colocação do 3000 de infiltração traçador na bacia e infiltração da água NO3 (mg/L) Cl (mg/L) 1400 03/05 15h:45 08/05 09h:35 do rio nas bacias 30 2500 8 1200 25 2000 9 1000 20 1500 Chegada do 800 10 traçador 15 Condutividade eléctrica (us/cm) 1000 (  29 a 66 600 Cl (mg/L) NO3 (mg/L) horas) 10 11 400 500 Profundidade ao nível - valor observado (m) Profundidade ao nível - valor registado (m) 5 200 0 12 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 0 0 09 21 09 21 09 21 09 21 09 21 09 21 09 21 09 21 09 21 09 21 09 21 09 21 09 21 09 21 09 21 09 21 09 19-07 23-07 27-07 31-07 04-08 08-08 12-08 16-08 20-08 24-08 28-08 01-09 05-09 09-09 13-09 17-09 21-09 25-09 Dia/hora

Experimental facilities Flume to study 20 m long flume Artificial Aquifer non conventional for studies with Facility (AA) spillways for earth turbidity currents fill dams - 5000 m 2 indoor area Flume for studies Laboratório de with fish steps Pumping ensaios de lixiviação e capacities up to apoio à monitorização 700 l/s de águas subterrâneas: 10 m long flume for LASUB flood studies in compound river channels Laboratory for 40 m long tilting Pollutant Leaching flume Flume to study Experiments and steeped spillways Fieldwork Preparation: LASUB

Research Projects ControlSed – CONTROL OF SEDIMENTATION IN RESERVOIRS INDUCED BY TURBITY CURRENTS Main objectives: Blocking the sedimentation of fine sediments in reservoirs Study the efficiency of placing an obstacle on the bottom of a reservoir to control the deposition of fine sediments Flow structure of turbidity currents interacting Numerical model to predict the effects of obstacles on real reservoirs Velocity Profiles A.02 Concentration Profiles J z/H z/h 3 2,500 T3 S.B6 J T4 2,5 S.B7 J 2,00 T5 S.B8 J 2 T6 S.B9 J T7 1,500 1,5 1,00 1 0,5 ,500 0 ,00 Cs / u/U -0,5 0 0,5 1 1,5 ,00 ,100 ,200 ,300 ,400 Cs 0

Research Projects COMPLEX - EXPERIMENTAL STUDY ON LOCAL SCOUR AROUND COMPLEX BRIDGE PIERS Main objectives: • Methodology to estimate the scour depth around complex piers • Laboratory tests at 3 Universities and LNEC • Design Manual and Short Course

Research Projects CALIBRATION OF NUMERICAL MODELING BASED ON PHYSICAL MODELS CASE STUDY : SALAMONDE DAM COMPLEMENTARY SPILLWAY PHYSICAL MODEL Main objectives: • Calibration of numerical models using experimental data; • Comparison of flow height obtained in the numerical model with the observations in the physical model; • Use of “Flow 3 D” to calculate, along the structure: - pressures, water levels, jet impact, velocity fields. Numerical Model Physical Model

5. Research Projects NUMERICAL MODELING OF COMPLEX FLOWS IN HYDRAULIC STRUCTURES STUDY CASES: FOZ TUA DAM WATER INTAKE, SALAMONDE II WATER INTAKE AND SURGE TANK Main objetives: • Calibration of CFD numerical models using experimental and physical models • New measurement and flow visualization techniques (UVPs, ADVs, PIV) • Study of alternative design forms

Research Projects PIRE – Modeling Flood Hazards and Morphological Impacts of Levee Breach and Dam Failure Main objectives: • Development of a conceptual model for dam breaching • Mathematical modelling of breaching processes on earth dam failures caused by overtopping • Development of advanced experimental techniques to measure dam breaching and flow • Intense laboratorial program on earth dam failures

Task 1e: Water for energy Task leader: LNEC; Involved partners EU: DTU, Dam Foundation in Rock EWA, EDP/Labelec Masses • Foundation treatment • Hydromechanical behaviour • Safety evaluation up to rupture of the rock masses Alqueva dam Alto Tâmega dam Baixo Sabor dam Drainage Grouting curtain boreholes Fridão dam

Monitoring and modeling the dynamic behavior of concrete dams In the scope of LNEC investigations on safety control of large dams it was recently installed in Cabril dam a long- term dynamic monitoring system. The measured acceleration records can be used:  to study the time evolution of the main modal parameters (natural frequencies, modal damping and mode shapes)  to study the correlation between changes in the modal parameters and structural changes due to deterioration processes  to study the dynamic dam response under ambient/operational excitation and under seismic loads  to study the influence of the reservoir on the structural dynamic behavior of the system dam-foundation-reservoir  to calibrate/validate finite element models in order to obtain reliable numerical tools for the assessment of the dam safety

Analysis of swelling processes in concrete dams Swelling computations in Cracking patterns (Alto Ceira dam) function of the temperature and moisture fields (Pracana dam) Analysis over time (Santa Luzia dam)

LNEC Participants and Acknowledgements • LNEC Dr.-Ing.Habil. J.P. Lobo-Ferreira (LNEC contact person for PIANO proposal & Task 1d: Managed Aquifer Recharge Strategies and Actions) Dr. Teresa E. Leitão (LNEC Hydraulics and Environment Department contact person for Task 1.a: Agricultural Water Management) Dr. Luís Lamas (LNEC Concrete Dams Department contact person for Task 1.e: Water for energy) Dr. José Melo (LNEC Hydraulics and Environment Department contact person for Task 1d: River basin management / dam safety and dam flood risk management) • EDP/Labelec Dr. João Pádua (LNEC subcontractor for Task 1.e: Water for energy) • Co-funding of the project by the European Commission within the Horizon 2020 Programme under Grant agreement number: 642433 is kindly acknowledged.