| 摘要 |
<p>The sidewalls of a deep trench are secured by driving sheet piles into the earth. The sheet pile has a support (2) with a flange (4) which is presented to an extruded link fitting (3) with a hooked locking member (6) presented to further sheet pile. The flange is esp. of rectangular cross section and engages with a matching profile (5) to form a side-inserted pressed tongue and groove joint.</p> |
