FLOOR SLAB, BEARING, INTERMEDIATE WALL, CONNECTION PART MOLD, AND FLOOR SLAB ERECTION CRANE

Japanese Patent JP2017186852

A

PROBLEM TO BE SOLVED: To deal with risk and difficulty involving transport and installation of larger equipment inside a tunnel that continue enlarging in a cross-section, because a Pca floor slab has an integral structure in a transverse direction, and a Pca intermediate wall is rectangular and has a dense and solid structure.SOLUTION: A bearing comprises two rows of side walls on right and left that come in contact with a segment, and two or more rows of intermediate walls. A floor slab comprises a pair of Pca floor slabs that face each other in a transverse direction and being supported by the two rows of bearings at the side wall and the adjacent intermediate wall, and a connection part between and connecting the floor slabs. The intermediate wall is of a continuous arch structure, and comprises a Pca intermediate wall having a vertical edge surface vertically dividing a support part and an arch part at a time of erection, and a connection part connected to each other on both vertical surfaces. A floor slab erection crane comprises a ceiling crane fitted on an upper frame on a support post erected on an upper saddle and a lower saddle, on both sides of a location of installation of the Pca floor slab.SELECTED DRAWING: Figure 3

HOSHINO AKIO
TANAHASHI HAJIME

JP2016078352A

October 12, 2017

April 08, 2016

Click for automatic bibliography generation  

HONSEI KOZAI KK
MARUEI CONCRETE IND CO LTD
GATE UP LLC

E21D11/40

JPH0821196A	1996-01-23
JPH10266788A	1998-10-06
JP2008144510A	2008-06-26
JP2008266960A	2008-11-06
JPH0687493U	1994-12-22
JP2012237144A	2012-12-06
JP2003064994A	2003-03-05
JP2014015753A	2014-01-30

CN103195440A

2013-07-10

Patent Business Corporation Daiichi International Patent Office

Previous Patent: Hybrid type work machine

Next Patent: Zipper lock