基于实测数据的盾构电缆隧道沉降规律与预测
Shield Cable Tunnel Settlement Subsidence Regulation and Prediction Based on Measured Data
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摘要:
以实测数据分析了盾构电缆隧道施工引起的地面沉降规律。通过实测值与地面沉降预测的经验公式对比，分析了实测值与经验值差异的原因，给出沉降预测的修正方法。首先对盾构施工引起地面沉降和发展规律进行分析，然后介绍了地面沉降预测的经验公式，并以实际工程为依据，分析了经验预测公式与实测值的差异原因；最后给出了沉降预测的修正方法。研究结果表明：通过沉降监测数据分析可了解盾构施工状态和获取沉降预测参数，从而更好的指导施工，对保障类似工程施工质量和安全具有重要借鉴意义。 Abstract:Shield cable tunnel settlement subsidence regulations are analysed based on measured data. The reasons for differences of measured data and experience data are analysed after comparing the measured data with experience formulas, the correction methods of settlement prediction are provided. First, the subsidence and the law of its development caused by shield construction are analysed. Secondly, the experience formulas for subsidence prediction are given, the reasons for differences of measured data and experience data are obtained according to the characteristics of the actual project. Finally, the correction methods of settlement prediction are obtained. The results show that the shield construction status and the settlement prediction parameters could be obtained through analysing measured data, which could provide technical guidance to the shield construction, they could also provide references to the similar construction.
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