(19)
(11) EP 0 370 396 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
03.04.1991 Bulletin 1991/14

(43) Date of publication A2:
30.05.1990 Bulletin 1990/22

(21) Application number: 89121260.7

(22) Date of filing: 17.11.1989
(51) International Patent Classification (IPC)5E02D 5/44
(84) Designated Contracting States:
FR GB IT NL

(30) Priority: 22.11.1988 CN 88220149

(71) Applicants:
  • Junsheng, Zhang
    Tianjing (CN)
  • Yanqin, Xu
    Tianjing (CN)

(72) Inventors:
  • Junsheng, Zhang
    Tianjing (CN)
  • Yanqin, Xu
    Tianjing (CN)

(74) Representative: Dallmeyer, Georg, Dipl.-Ing. et al
Patentanwälte von Kreisler-Selting-Werner Postfach 10 22 41
50462 Köln
50462 Köln (DE)


(56) References cited: : 
   
       


    (54) A reinforced concrete load-bearing pile with multi-branches and enlarged footings and means for forming the pile


    (57) This invention relates to a reinforced concrete load-bearing pile for reinforcing foundations, and means and method for forming such a pile. The load-bearing pile of the invention comprises a pile body (1), at least one branch (2) and enlarged footing (3) integrated with the pile body. The means for the pile comprises a pile cavity drilling/pressing device, a branch cavity pressing device and an enlarged footing cavity pressing device. The pile of the present invention possesses higher load-carrying capability, increases the stability of the foundation and saves more than 50% construction materials. The formation means of the invention solves the problem of making branch cavities and is simple in structure.







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