地铁联络通道冻结法事故致因风险及应急对策

RISK FACTORS AND EMERGENCY MEASURES FOR SUBWAY STATION TRANSFER PASSAGEWAY FREEZING CONSTRUCTION METHOD

依托某地铁冻结法施工联络通道突水涌泥险情案例,总结分析事故发生的诱因和规律,探究地面塌陷灾变机理分析,系统分析施工过程中的致险因素,研究产生风险后的应对措施。通过分析事故案例,总结了联络通道冻结法施工诱发地面塌陷灾变机理。

Taking the water burst and mud inrush accident during freezing method construction of a subway transfer passageway as an example,this paper summarized and analyzed the factors and laws causing the accident,discussed the ground collapse disaster mechanism and systematically analyzed the factors causing risks during construction and studied the measures against these risks.Based on analysis of the accident cases,it was found that the ground collapse disaster mechanism caused by freezing construction method of transfer passageway,providing emergency measures for similar projects.