区域地面沉降的主要因素研究

Study on the Main Factors of Regional Land Subsidence

近年来,我国城市地下空间的开发利用愈来愈趋于精细化管理,如何监测区域地面沉降引起的地质灾害受到社会的广泛关注。基于某区域多年来地面沉降监测数据和地质条件综合分析,研究了区域地下构筑物沉降趋势及影响因素,探明了地下构筑物长期沉降和不均匀沉降的主要原因,建立了地面累积沉降量、差异沉降量与沉降趋势的特征关系。通过变形监测数据科学预测地面沉降的趋势与影响范围,为治理和预防因地面沉降造成的灾害提供决策依据。研究成果不仅可为该地区地下构筑物施工安全提供技术支持,也可为城市地下空间规划、布局提供理论参考,还可为复杂软土地区地下工程设计提供理论依据。

In recent years,the development and utilization of urban underground space tend to be meticulous management in China.Therefore,how to monitor the geological hazards caused by land subsidence is widely concerned by the society.Based on the comprehensive analysis of ground subsidence monitoring data and geological conditions in recent years in a certain region,the subsidence trend and influence factors of the regional underground structures are studied,the main reasons for the long-term and uneven settlement of underground structures are explored,and the characteristics of the cumulative subsidence,the difference settlement and the settlement trend are established.Through the deformation of monitoring data,the trend and influence range of ground subsidence are predicted scientifically in order to provide the decision basis for controlling and preventing the disaster caused by ground subsidence.The research results can not only provide technical support for the construction safety of underground structures in this area,but also provide a theoretical reference for the planning and layout of urban underground space.Moreover,it can provide theoretical basis for underground engineering design in complex soft soil area.