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| 盾构隧道斜交下穿黄河堤防的Peck沉降公式参数研究 |
| Research on Parameters of the Peck Settlement Formula for Shield Tunnels Obliquely Crossing Upper the Yellow River Dike |
| 投稿时间：2025-08-01 修订日期：2026-02-19 |
| DOI： |
| 中文关键词: 盾构隧道，黄河大堤，斜交下穿，Peck公式，回归检验 |
| 英文关键词: Shield tunnel, Yellow River dike, Oblique crossing upper, Peck formula, Regression test |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 中文摘要: |
| 盾构隧道下穿堤防引起的沉降变形将直接影响堤防安全，针对盾构隧道与堤防工程平面斜交的工程场景，基于斜交坐标系分析了水平斜交下穿角度对经典Peck公式参数的影响，提出一种考虑水平斜交角度影响的Peck公式参数确定方法。以济南黄岗路穿黄隧道为工程背景，通过布设地表沉降监测系统，获取盾构穿越后堤防沉降数据，并采用最小二乘回归方法拟合得到考虑水平斜交角度影响的地层损失率与沉降槽宽度系数。结果表明，黄河堤防济南段堤防地层平均沉降槽宽度参数约为0.43，平均地层损失率约为0.31%，忽略水平斜交角度会导致参数偏大约 12%，可能造成误判规范符合性。基于济泺路穿黄隧道实测数据，证实所提参数具有较好的预测精度与工程适用性。 |
| 英文摘要: |
| Shield tunnel excavation beneath levees induces settlement deformation that poses a direct threat to levee integrity. Focusing on the planar oblique crossing between a shield tunnel and an embankment, this study investigates the effect of the horizontal oblique angle on the parameters of the classical Peck formula within an oblique coordinate framework. A modified approach for determining Peck formula parameters, incorporating a correction for the horizontal oblique angle, is proposed. Based on the Huanggang Road Tunnel project crossing beneath the Yellow River in Jinan, a field monitoring system was established to measure post-construction embankment settlement. The ground loss ratio and settlement trough width parameter, considering the influence of the horizontal oblique angle, were back-analyzed using the least squares regression method. The results show that the average settlement trough width parameter for the embankment strata in the Jinan section of the Yellow River is approximately 0.43, and the average ground loss ratio is about 0.31%. Neglecting the horizontal oblique angle leads to an overestimation of these parameters by approximately 12%, which may result in improper judgments regarding code compliance. Validation using measured data from the Jiluo Road Tunnel crossing beneath the Yellow River demonstrates that the proposed parameters offer satisfactory predictive capability and practical engineering applicability. |
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