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中文摘要：
导管架海洋平台在长期使用中存在着桩基础沉降的问题。海上固定式结构物由于在海面上很难找到固定的参考点,因此很难采用常规土木工程中的沉降测量方法对沉降问题进行测量。根据土壤的压缩性质以及桩基沉降给平台带来的危害程度,制定了沉降的三级监控方法。通过对平台上部总荷载、单桩荷载以及不均匀沉降的监测来监控平台的沉降情况,并在渤海某平台上进行了实际应用。通过采用光纤光栅等先进的监测手段以及合理的监测方案,实现了导管架平台沉降的三级监控,实际应用效果良好。
英文摘要：
The jacket oil platforms have the danger of subsidence during the long working term.It is difficult to monitor the subsidence of the fixed offshore structures by common measurement due to the difficulty of finding a fixed reference object.In this paper,the three-level subsidence monitoring method is proposed based on the soil compress characters and the subsidence harmful degrees.This subsidence monitoring system contains the total load of the deck,the load of each leg and the uneven subsidence.The three-level subsidence monitoring method has been successfully applied to a real jacket oil platform in the Bohai Sea,using some advanced monitoring instruments such as Fiber Bragg Grating sensors.
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