浅埋隧道开挖地表沉降研究现状及其施工技术综述

A Review of the Current Status of Research on Surface Settlement in Shallow Buried Tunnel Excavations and Its Construction Technology

随着城市中隧道工程的持续修建,浅埋隧道下穿既有的道路或者建筑引起的地表沉降问题受到了越来越多的关注。本文在梳理了近些年来国内外学者针对浅埋隧道施工诱发的地层沉降变形的研究方法及研究成果的基础上,对地层岩性、地下水、隧道埋深、开挖方法、掌子面形状、支护类型等因素对地表沉降的影响规律进行了归纳总结。并对浅埋暗挖建造技术进行了阐述,同时提出了相应的思考和展望。

With the continuous construction of tunnel projects in cities,the surface settlement problems caused by shallow buried tunnels under existing roads or buildings have received more and more attention. In this paper,based on the research methods and research results of scholars at home and abroad in recent years on the ground settlement deformation induced by shallow buried tunnel construction,the influence law of ground lithology,groundwater,tunnel depth,excavation method,palm surface shape,support type and other factors on surface settlement is summarized. And the shallow buried concealed excavation construction technology is elaborated,while the corresponding thinking and outlook are put forward.