【発明の名称】土留め杭、支持杭等、芯材圧入コラム杭施工法およびその装置

Title:

【発明の名称】土留め杭、支持杭等、芯材圧入コラム杭施工法およびその装置

Document Type and Number:

Japanese Patent JPH0762347

Kind Code:

B2

Inventors:

Masatsugu Okada
Yanase Hisachi

Application Number:

JP175691A

Publication Date:

July 05, 1995

Filing Date:

January 10, 1991

Export Citation:

Assignee:

Obayashi Corporation
Santo Industry Co., Ltd.

International Classes:

E02D5/20; E02D7/00; E02D7/16; E21B15/00; (IPC1-7): E02D7/00; E02D5/20; E02D7/16; E21B15/00

Domestic Patent References:

JP6255642U

Attorney, Agent or Firm:

Kazuo Sato (3 others)

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