浅埋大跨度顶管隧道下穿公路的地表沉降分析
Journal: Building Technology Research DOI: 10.12238/btr.v7i4.4476
Abstract
超浅埋大断面矩形顶管隧道下穿高速公路施工过程中,因顶管施工循环顶进对地层的重复扰动作用和相邻隧道的相互影响,极易造成高速公路路面累积变形过大导致工程灾害和安全事故。为此,本文结合某下穿高速矩形顶管隧道工程,通过现场监测和数值模拟,探讨了矩形顶管顶进施工过程中高速公路路面的沉降变形规律。该案例地表沉降的研究结果可为类似工程施工设计提供参考。
Keywords
矩形顶管；隧道施工；数值模拟；地表沉降
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