(19)
(11) EP 1 961 867 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
30.05.2012 Bulletin 2012/22

(43) Date of publication A2:
27.08.2008 Bulletin 2008/35

(21) Application number: 08151665.0

(22) Date of filing: 20.02.2008
(51) International Patent Classification (IPC): 
E02D 5/46(2006.01)
E02D 5/64(2006.01)
E02D 29/16(2006.01)
 E02D 27/26(2006.01)
E02D 19/18(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 22.02.2007 IT TO20070127

(71) Applicant: Trevi S.p.A.
I-47023 Cesena (Forli) (IT)

(72) Inventors:
  • ZILLER, Marco
    20133 Milano (IT)
  • TREVISANI, Stefano
    47020 Roncofreddo, Forli (IT)

(74) Representative: Fioravanti, Corrado et al
Jacobacci & Partners S.p.A. Corso Emilia 8
10152 Torino
10152 Torino (IT)

   


(54) A method of building a monolithic underground concrete structure


(57) Jet grouting methods are used to form a first plurality of parallel primary columns (P) which are spaced apart from each other and which are positioned with a spacing between them according to a predetermined reticular layout. A second set of secondary columnar blocks (S) is then formed, each of these blocks being interposed between and securely joining two consecutive primary blocks (P), thus providing at least one closed ring structure composed of a sequence of primary blocks alternating with secondary blocks which surround at least one central portion of soil. Finally, a tertiary columnar block (T) is formed in this central portion to securely join the surrounding primary (P) and secondary (S) blocks. These operations are repeated to produce a monolithic underground artificial conglomerate structure.







Search report