软土地区深基坑工程承压水风险与控制

Risk and Control of the Artesian Water for Deep Excavation Engineering in Soft Soil Area

摘要:

以26个承压水风险工程案例为基础，采用故障树分析法对深基坑工程坑底突涌和隔水帷幕渗漏、流砂等承压水风险事件和风险因素进行识别；通过风险因素的敏感性分析探讨了承压水风险的主次因素；结合工程案例分析，提出了相应的风险预防措施和应对措施，为类似工程提供参考借鉴.

Abstract:

26 cases were collected to analyze the risk of the artesian water for the deep excavation, such as pit piping and bracing seepage and flowing sand. Then the fault tree analysis was employed to identify the factors of the risk of the artesian water. Furthermore, the sensitivity analysis was employed to array the factors of the risk of the artesian water. Finally, the precautions and the emergency measures of the risk of the artesian water for the deep excavation engineering were proposed, and the results provided a reference for the similar engineering.