Title:
基礎杭およびその施工方法
Document Type and Number:
Japanese Patent JP6588117
Kind Code:
B2
Abstract:
A pile to be inserted into a beforehand excavated hole, includes a main body being comprised of a hollow pipe, a circular bottom plate fixed at a lower end of the main body coaxially with the main body, a through-hole being formed therethrough outside of the main body, a hollow test pipe having an outer diameter such that the test pipe can be detachably inserted into the through-hole, and a cap being attached to a lower surface of the bottom plate so as to close the through-hole, S1:S2=W1:W2, wherein S1 indicates a surface area of the bottom plate, S2 indicates a surface area of the cap, W1 indicates a weight of a second drop hammer to fall in the main body, and W2 indicates a weight of the first drop hammer.
Inventors:
Seiji Matsushita
Application Number:
JP2018036468A
Publication Date:
October 09, 2019
Filing Date:
March 01, 2018
Export Citation:
Assignee:
Seiji Matsushita
International Classes:
E02D5/28; E02D7/00
Domestic Patent References:
| JP2009203672A | ||||
| JP2004324352A | ||||
| JP2003227134A | ||||
| JP9061266A |
Foreign References:
| EP2264246A2 |
Attorney, Agent or Firm:
Hisashi Kato
Keita Tohsaka
Toru Minase
Keita Tohsaka
Toru Minase