To push down a co-lifted drain member to a prescribed depth in weak ground and to surely install the drain member to the prescribed depth in the weak ground.
A mandrel 4 in the state that an anchor member 3 is arranged at a distal end 4a, a drain member 2 with the anchor member 3 connected to a distal end 2a is inserted to an inner part 4b, and a rod member 5 is housed in the inner part 4b is installed to the prescribed depth in weak ground 100 with the anchor member 3 as an insertion end. When the drain member 2 is co-lifted when installing the drain member 2 to the prescribed depth in the weak ground 100, the rod member 5 is projected from the mandrel 4, the anchor member 3 is pushed down to the prescribed depth in the weak ground 100, and the drain member 2 is installed to the prescribed depth in the weak ground.
TOMITA YUICHI
YAMAMOTO TAKANOBU
MORI HARUO
YAMAMOTO KIMIO
IIZUKA HIRONOBU
TOKYU KENSETSU KK
MIRAI CONSTRUCTION CO LTD
WAKACHIKU CONSTRUCTION CO LTD
KYADOTEKKU KK
CHIKAMI MILTEC INC
| JPS59134222A | 1984-08-01 | |||
| JPH01141831U | 1989-09-28 | |||
| JPH0676427U | 1994-10-28 | |||
| JP2000160544A | 2000-06-13 | |||
| JPS59195915A | 1984-11-07 | |||
| JPS5241413A | 1977-03-31 |
Seiji Iga
Toshiya Fujii
Nobuhiro Noguchi