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PDF(217 KB)
PDF(217 KB)
城市明挖地下工程开发环境效应研究现状及趋势
Research Status and Trends of Environmental Effects of Urban Excavation Underground Engineering Development
随着城市地下空间开发规模不断增大，城市地下空间开发的主要矛盾从基坑自身稳定问题逐渐转向基坑周边环境变形控制问题。周边环境复杂情况下的地下空间开发极易引起地表不均匀沉降，建筑物开裂，造成巨大的经济损失。因此需要系统性地研究城市各类明挖基坑开发形式所带来的环境影响及环境效应控制技术。本文介绍和回顾了统计经验法、数值模拟法、模型试验法在明挖基坑引起的环境效应研究中取得的研究成果，总结了各类研究方法及成果的优势和不足。介绍了现有环境控制技术及应用案例，总结了地下空间开发环境效应研究成果，并对今后研究方向提出了建议。
With the increasing developmental scale of urban underground space, the main contradiction of the urban underground space development has gradually turned from the stability of the foundation pit to the deformation control of the environment around the foundation pit. The underground space development surrounding a complex environment may easily lead to uneven surface subsidence and building cracking, resulting in great economic losses. Therefore, the environmental effect of various excavation foundation pits and environmental effect control technology must be systematically studied. This study introduces and reviews the application of statistical, numerical simulation, and model test methods in the study of the environmental effects caused by excavation foundation pits. This study also summarizes the advantages and disadvantages of each research method, introduces the existing environmental control technology and application cases, summarizes the research results on the environment effect of the underground space development, and proposes some suggestions for future research in this field.
underground space / excavation / foundation pit / environmental effects / deformation control
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