The Kansai builders recogised that settlement was inevitable. Sand was driven into the seabed to strengthen it before the land fill was piled on top, in an attempt to slow the process; but this has not been as effective as had been hoped. To cope with settlement, Kansai's giant terminal is supposted on 900 pillars. Each of them can be individually built jacked up, allowing wedges to be added underneath. That is meant to keep the building level. But it could be a tricky task.
這是一段關於興建機場的土木工和的文章,因為藍色字之前的文字我沒有完全理解,以致於不懂為何文末說That is meant to keep the building level,請英文達人解釋一下,謝謝了。