All depths in sea refer to the chart datum which is 1 . 38 metres below the mean sea level 所有水深均以海图水平基准为计算根据,该基准位于平均海平面以下1
2.
The pile cap is located at 6 . 7 metres below the mean sea level . it would be very difficult to construct the pile cap as underwater construction will be required -桩帽在平均海平面以下6 . 7米,由于必须在水底下施工,因此建造桩帽时会十分困难。