| 摘要 |
<p>Seals means for sealing between the adjacent edges (16, 17) of two members (11) (such as tunnel lining segments), the adjacent edges (16, 17) of said two members (11) being formed so as to provide a gap (23) which is narrower towards front surfaces (18) of the members and wider behind the narrowest point, said seal means (28) comprising a generally linear seal member (29) of a cross section such that it is insertable into said gap (23) past said narrowest part of said gap (23) whilst in a first orientation and wider than the narrowest part of the gap (23) in a second orientation, means (36) being provided for moving said generally linear seal member (29), when inserted into said gap (23) and behind said narrowest part of said gap, towards said front surface (18) of the members (11), whereby said generally linear seal member (29) is, in use, inserted into said gap (23) whilst in said first orientation, is turned to said second orientation, and is moved by said movement means (36) into a position in which it sealingly engages behind the narrowest part of said gap (23).</p> |
