In this work, we investigate if, when, and how satellite InSAR can be used for evaluating surface settlements that occur during shield tunnelling in soft soil areas. We evaluate the applicability of InSAR prior, during, and after tunnel construction. Special emphasis is placed on the influence of the InSAR phase ambiguities in relation to short-term settlements that may occur during tunnel construction. We demonstrate that a rough analytic settlement prediction can be sufficient to resolve the most probable phase ambiguity level, leading to an augmented implementation of InSAR. We use the shield tunnel of the in North/South Metro Line Amsterdam as a case study, where surface levelling data is available to assess and validate the results. We conclude that InSAR is a valuable complementary source of information as it provides data outside the area of the conventional surveying benchmarks and it reveals relevant information about settlement patterns before and after traditional construction monitoring periods.

在这项工作中，我们研究了是否可以，何时以及如何使用卫星InSAR评估软土地区盾构施工期间发生的地面沉降。我们在隧道建设之前，之中和之后评估InSAR的适用性。特别强调InSAR相位歧义对隧道施工期间可能发生的短期沉降的影响。我们证明，粗略的解析沉降预测可能足以解决最可能的相位模糊度水平，从而导致InSAR的实施得到增强。我们以阿姆斯特丹北部/南部地铁线的盾构隧道为例进行研究，在该隧道中，可以使用地面找平数据来评估和验证结果。