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Excavation Material Use Strategy

Excavation Material Use Strategy. Prof. Dr. Robert Galler Chair of Subsurface Engineering, Montanuniversität Leoben , Austria. 5 th FCC-Week, Brussels, 24 – 28 June 2019.

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Excavation Material Use Strategy

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  1. Excavation Material Use Strategy Prof. Dr. Robert Galler Chair of Subsurface Engineering, MontanuniversitätLeoben, Austria TEST TEST 5th FCC-Week, Brussels, 24 – 28 June 2019

  2. From the mineral resources perspective, e.g. the Resource “Gravel”(according to Kündig et al., 1997, and Jäckli & Schindler, 1986, modified)

  3. Objectives Thus the main objectives for the (re-)use of excavated mineral resources from underground construction sites include: • find the maximum utilization for mineral resources from the underground construction industry • additionally supply construction sites outside of the underground project with mineral resources • supply specific industry with mineral resources such as the steel, ceramic and glass industries • find an economic optimum for the material management of underground construction sites • minimize the environmental pollution by optimised material processing and transport • reduce CO2-production within underground construction sites • reduce landfill capacity for depositing excavation material • production of zero waste out of underground construction projects

  4. Requirements for aggregates for concrete TEST TEST

  5. Specification in description of services (mandatory catalogue for concrete - ÖNORM B 4710-1:2018-01) TEST TEST

  6. … to be considered! Excavationtechnology [Dissertation D. Resch]

  7. Classesof possible reuse versus landfillclasses includingtheprobabilityoftheprognoses in an earlystage design TEST TEST

  8. Distancetoexistingquarries and abandoned mines 10km 20km 30km 40km 50km 60km [Diplomarbeit B. Mayr]

  9. Which parameters should be analysed? • Whatis essential tobedeterminedfor a precisematerial classification? • Whatis essential tobedeterminedwhen? • Howoftenwithrespecttonational-specificconcretestandards, industrialminerals, landfill and samplingstandardsistheanalysistobedone? • Grainsize / grainshape • Watercontent / moisture • Elementalcomposition • Mineralogicalcomposition • Amountofmicaminerals • Strengthparameters

  10. … to be able to react during construction the concept [Dragon 2015]

  11. Online analysis of material on a bypass belt • Bypass fedby a sampler • Crushingofthe rock accordingtotherequirementsoftheanalysingsystems • Analysingsystems on a bypassbelt

  12. Applicationwithinthetunnelprofile DOD [Herrenknecht AG]

  13. Use intelligent technologies

  14. Use intelligent technologies

  15. The strategyshould at least consider … • Provide a Material managementsystemfortheexchange and trade ofexcavated material • Avoiddisposalsites and withthis at the same time avoidlandfillcost • Consider environmental impacts • byconsideringthechoiceoftechnologyforextractingrawmaterials • byavoidingpollutingproductionprocesses • How will theproductgettocustomers? • Howmuchenergy will theproductuse? • Preparechemicalcharacteristics and amountsof material classes • Preparemineralogicalcharacteristics and amountsof material classes • Prepareautomatic update ofpredicted material amounts and classes • Providecompleteinformationabouttheproject

  16. Guidelines October 2015 May 2016 April 2019 April 2019

  17. Reuse of Excavation material should be the responsibility of the client/owner! TEST TEST 5th FCC-Week, Brussels, 24 – 28 June 2019

  18. A first overview of the legal and technical framework for the re-use of FCC’s proposed excavated spoil material Maximilian Haas (SMB-SE-FAS) 5th FCC-Week, Brussels, 24 – 28 June 2019

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