基坑工程与地下工程安全及环境影响控制

Control of safety of deep excavations and underground engineering and its impact on surrounding environment

随着城市中基坑工程与地下工程的建设规模和建设难度的增大及环境条件的日益复杂化,对基坑工程与地下工程的安全以及其施工过程对环境的影响控制提出了更高的要求。回顾了近年来国内外基坑工程与地下工程技术的发展;对软弱土、高水位、富水粉、砂土层中的基坑工程和地下工程施工造成的环境影响及引发的灾害进行了分类;在此基础上对我国基坑与地下工程施工变形控制及工程安全控制策略进行了系统总结。

Deep excavations and large scale underground engineering projects in densely developed city area create complicated environment surrounding the underground structures.Strict requirements in terms of deformation and failure of the structures are imposed in order to ensure its safety and reduce the impact on the surrounding environment.This paper reviews the state-of-art of techniques associated with deep excavation and underground engineering.Classifications of impact or hazard are suggested for deep excavation and underground engineering in soft ground with shallow ground water table,water-rich silt and sand stratum.Strategies of deformation control and stability control measures for deep excavations and underground engineering projects are discussed and summarized.