EPB Operation Under High Cover and Pressure to Avoid Interferences with Rome Ancient Buildings
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EPB Operation under High Cover and Pressure to Avoid Interferences with Rome Ancient Buildings A. Ciamei1 , M. Monina1, A. Sciotti2, R. Ginanneschi1, M. D’Ambrosio1 1S.E.L.I. Spa, Rome, Italy; 2Roma Metropolitane Srl, Rome, Italy WTC - Vancouver, May 2010 Li nea A Batt i stini Cornelia Bal do degl i Ubaldi Cl odi o- Mazzi ni Val le Aurelia Li nea C Ci pro- Musei Vati cani Ri sorgi ment o S.Pi etro Chi esa Nuova Ottaviano Lepanto S. Cosi mat o Argenti na Flaminio S.Sil vestro Prati Fi scal i Buenos Ai res Nemorense Barberi ni Villa Chigi Spagna Verbano Valtournanche Ni evo Fiume Tr ast ever e Ci rc o Massi mo Venezi a Linea B1 Joni o Col osseo Ter mi ni AnnibalianoGondar Conca d'Oro Lungotevere Dante Cavour Adri at ico Repubbl ica Noment ana Fermi Tal en ti Osti ense Ostiense Bol ogna Pian due Torri Termi ni Castro PretorioPoliclinico Ka t Amba Aradam n Pi ramide Vittorio E. Magl i ana Nuova Ojetti Manzoni Garbatel l a Tiburtina Li nea D Basilica S.Paolo San Giovanni Qui nti li ani Marconi Re di Roma Lodi Monti Tiburtini EUR Magl iana Ponte Lungo Li nea B Pon Reb Pi Pi gneto S. et Agricol tura M r t i Tuscolana . del Soccor e M b Linea D a lat Malatesta b a i i Furi o C mllo a a a m Colli Al bani-Parco Appi a Antica Teano m ol o s Arco di Tr avertino o Li nea B Gardenie Porta Furba-Quadraro Numi di o Quadrato Mi rt i Luci o Sestio Parco di Centocelle Giul io Agricola Al essandrino Torre Spaccata Subaugusta Gi glioli Cinecittà Gi ard i netti Anagnina Linea A Torre Angela WTC - Vancouver, May 2010 Torre Gaia Grotte Celoni Fontana Candi da Borghesiana Bol ognetta Fi nocchio Graniti Pantano Linea C Project facts: Conca d’oro-Bologna section ¾Twin TBM bored tunnels 6.79 m cut diameter ¾Precast segmental lining ¾3500m each drive ¾5.8m internal diameter, 350mm thickness ¾3 stations along alignment Conca d’oro-Jonio section ¾One TBM bored tunnel 9.79 m cut diameter ¾Precast segmental lining ¾1000m single drive ¾8.65m internal diameter, 400mm thickness WTC - Vancouver, May 2010 ANNIBALIANO Outbound GONDAR Inbound BOLOGNA JONIO CONCA D’ORO excavation excavation WTC - Vancouver, May 2010 Geology and vertical alignment BOLOGNA ANNIBALIANO CONCA GONDAR D’ORO Water table Recent Alluvium Max slope 4% Pleistocene Sedimentary WTC - Vancouver, May 2010 Challenge: UNDERPASSAGE & STATION GONDAR MILANO- ROMA FAST ANIENE ANNIBALIANO RAILWAY RIVER Inbound Outbound WTC - Vancouver, May 2010 EPB & GROUTING pressure [bar] vs. ring number 12 10 8 Average 6 4 bar 4 2 Average 3 bar 0 1 21 41 61 81 101 121 141 161 181 201 221 241 261 281 301 321 341 361 381 (top sensor) WTC - Vancouver, May 2010 3.417 3.407 3.397 3.387 3.377 3.367 3.357 3.347 Surface settlement: negligible settlement: Surface 3.337 3.327 3.317 3.307 3.297 3.287 3.277 3.267 3.257 3.247 3.237 3.227 3.217 WTC - Vancouver, May 2010 3.207 3.197 3.187 3.177 3.167 3.157 Average 4 mm TBM current postion --- Completion expected by end 2010 ANNIBALIANO GONDAR BOLOGNA JONIO CONCA D’ORO Inbound Outbound WTC - Vancouver, May 2010 THANK YOU FOR THE ATTENTION WTC - Vancouver, May 2010.