METHOD OF PLACING SECONDARY LINING CONCRETE

申请公布号：

JP2002030893(A)

申请号：

JP20000219321

申请日期：

2000.07.19

申请公布日期：

2002.01.31

申请人：

NISHIMATSU CONSTR CO LTD

发明人：

TOMOHARA KEN;KAWAMURA MASAMI;SATOU KUMEJI;MAEDA SHOICHI

分类号：

E21D11/10;(IPC1-7):E21D11/10

主分类号：

E21D11/10

摘要：

PROBLEM TO BE SOLVED: To easily and sufficiently compacting the secondary lining concrete even at a top end part and both shoulder parts of a tunnel. SOLUTION: A guide rail 2 is provided in the tunnel extending direction in a clearance 130 between a segment 120 and a center 110, and a bar-like vibrator 2 to be moved along the guide rail 2 is provided. The concrete is placed into the clearance 130 from an existing side (for example, a wrap part 3 side) while compacting the concrete with the bar-like vibrator 1, and the bar-like vibrator 1 is moved along the guide rail 2 from the existing side to an end sheathing 4 side while placing the concrete. The guide rail 2 works as a setup beam for the secondary lining concrete 100.