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NHAZCA OPEN DAY
                                  ROMA
                              31 – 01 – 2013




Land subsidence in urban areas: investigation and monitoring for
understanding causes and addressing remediations



                                               C. Esposito
                                               Sapienza Università di Roma;
                                               Centro di Ricerca CERI




 Roma   31 – 01 – 2013      NHAZCA OPEN DAY                  CARLO ESPOSITO
Land subsidence in an urban settlement: human-induced stress factors
                    on a susceptible environment


                                       Travertine
                                        quarries

                                 Thermal
                                 springs




                                           ERS (1992-2001)   ENVISAT (2003-2010)




                                                                                   Legend
                                                                                   Velocità (mm/anno)
                                                                                       < -25.00
                                                                                       -24.99 - -10.00
                                                                                       -9.99 - -5.00
                                                                                       -4.99 - -3.00
                                                                                       -2.99 - -1.50
                                                                                       -1.49 - 1.50
                                                                                       1.51 - 3.00
                                                                                       3.01 - 5.00
                                                                                       5.01 - 10.00
                                                                                       10.01 - 25.00
                                                                                       >25.00




  Roma   31 – 01 – 2013    NHAZCA OPEN DAY                   CARLO ESPOSITO
Emergency remediations and investigation on possible contributory
                  causes (at the basin scale)




Roma   31 – 01 – 2013     NHAZCA OPEN DAY         CARLO ESPOSITO
FASE 8: Messa in carico del sistema di isolamento e
         taglio delle vecchie strutture di fondazione




Messa in carico degli isolatori tramite martinetti piatti in asse
Rimozione del banchinaggio

Taglio dei vecchi pali di fondazione e dei micropali provvisionali

   Roma   31 – 01 – 2013        NHAZCA OPEN DAY            CARLO ESPOSITO
Emergency remediations and investigation on possible contributory
                  causes (at the basin scale)
                                      W                            E


                                                                   N
                                      S




Roma   31 – 01 – 2013     NHAZCA OPEN DAY         CARLO ESPOSITO
Is it possible to better constrain the relations with piezometric
                              variations?




Roma   31 – 01 – 2013      NHAZCA OPEN DAY           CARLO ESPOSITO

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C. Esposito - NHAZCA Open Day

  • 1. NHAZCA OPEN DAY ROMA 31 – 01 – 2013 Land subsidence in urban areas: investigation and monitoring for understanding causes and addressing remediations C. Esposito Sapienza Università di Roma; Centro di Ricerca CERI Roma 31 – 01 – 2013 NHAZCA OPEN DAY CARLO ESPOSITO
  • 2. Land subsidence in an urban settlement: human-induced stress factors on a susceptible environment Travertine quarries Thermal springs ERS (1992-2001) ENVISAT (2003-2010) Legend Velocità (mm/anno) < -25.00 -24.99 - -10.00 -9.99 - -5.00 -4.99 - -3.00 -2.99 - -1.50 -1.49 - 1.50 1.51 - 3.00 3.01 - 5.00 5.01 - 10.00 10.01 - 25.00 >25.00 Roma 31 – 01 – 2013 NHAZCA OPEN DAY CARLO ESPOSITO
  • 3. Emergency remediations and investigation on possible contributory causes (at the basin scale) Roma 31 – 01 – 2013 NHAZCA OPEN DAY CARLO ESPOSITO
  • 4. FASE 8: Messa in carico del sistema di isolamento e taglio delle vecchie strutture di fondazione Messa in carico degli isolatori tramite martinetti piatti in asse Rimozione del banchinaggio Taglio dei vecchi pali di fondazione e dei micropali provvisionali Roma 31 – 01 – 2013 NHAZCA OPEN DAY CARLO ESPOSITO
  • 5. Emergency remediations and investigation on possible contributory causes (at the basin scale) W E N S Roma 31 – 01 – 2013 NHAZCA OPEN DAY CARLO ESPOSITO
  • 6. Is it possible to better constrain the relations with piezometric variations? Roma 31 – 01 – 2013 NHAZCA OPEN DAY CARLO ESPOSITO