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首页> 外文会议>12th International Harbour Congress Sep 12-16, 1999 Antwerpen, Belgium >LIGHTWEIGHT DAM IN THE KEILE HARBOUR, ROTTERDAM
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LIGHTWEIGHT DAM IN THE KEILE HARBOUR, ROTTERDAM

机译：鹿特丹基尔港轻型水坝

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In order to be able to manage the increasing industrialisation at the harbour of the Fruitport area, the Port of Rotterdam Authority decided to construct a second access road. The road consisted of a dam spanning the 75 m wide Keile Harbour, situated in a delta area. One of the problems for the construction of the dam was the limited time available for consolidation in combination with the 12.5 m soft peat and clay-layer underneath the dam. The other main problem was the fact that adjacent to the dam there were vulnerable building pile foundations. Considered were a light weight construction and a coffer dam. After careful deliberation a light weight dam was chosen, consisting of a light core of 4 m high composted woodcocks topped by a 2.75 m high Epoxy Poly Styreen (EPS) layer. This lightweight core was covered with sand. Joined "gabions" of 1 m~3, filled with woodcocks and EPS, were used to create a solid body of the light core of the dam. The joined "gabions" resulted in a 70 m long, 60 m wide and 6 m high floating construction, like a mattress. For construction of the mattress a pontoon was used. After finishing constructing the mattress, the pontoon was sunk to the bottom of a very deep harbour leaving a floating mattress. A tugboat dragged the floating mattress to the final destination. Once in place the mattress was covered with sand. Due to the sandbed the EPS sunk underneath the waterline and generated an uplift force resulting in a minimal settlement. After three months of consolidation the foundation of the road was finished and ready for traffic.
机译：为了能够管理Fruitport地区港口日益增长的工业化进程，鹿特丹港务局决定修建第二条通道。这条道路由位于三角洲地区，横跨75 m宽的Keile港口的大坝组成。大坝建设的问题之一是，与12.5 m的软泥煤和大坝下面的粘土层相结合的加固时间有限。另一个主要问题是，在大坝附近有易损的建筑桩基。考虑的是轻质建筑和围堰。在仔细考虑之后，选择了一个轻质水坝，该轻水坝由4 m高堆肥wood的轻芯和2.75 m高的环氧聚苯乙烯（EPS）层组成。这个轻质的核心被沙子覆盖。用1 m〜3的“石笼”装满wood和EPS，以形成水坝轻质岩心的固体。相连的“石笼”形成了一个长70 m，宽60 m和高6 m的浮动结构，就像床垫一样。为了构造床垫，使用了浮桥。在完成床垫的构造之后，浮船沉入了一个非常深的港口的底部，留下了漂浮的床垫。拖船将浮动床垫拖到最终目的地。放置到位后，床垫会被沙子覆盖。由于沙床，EPS沉入了水线下方，并产生了升力，从而使沉降最小。经过三个月的整理，道路的基础已经完成，可以通行。

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