摘要
重庆轨道交通2、3号线采用跨座式单轨交通系统,其中70%线路为高架段,而大部分高架段采用汽车吊架设PC轨道梁。通过对架设工艺流程进行分析,得出结论:架梁过程中的占道施工和PC梁吊装为重大危险源。利用某学者提出的重大危险源辨识数学模型中的评分标准对其进行评价,重点对PC梁吊装中的重大危险源提出安全技术控制措施,主要包括选择满足安全要求的起重机、起吊危险源控制措施、PC梁定位安全技术措施等方面。这些安全技术措施,已成功应用于重庆轨道交通2、3号线11 000榀PC轨道梁架设,并为韩国大邱地铁3号线PC梁架设提供了技术支持。
Chongqing rail transit lines No.2 and No.3 usually use monorail transportation system, of which 70% is elevated section, and truck crane is used to erect track PC beam in most elevated section. Based on analysis of the erection process, evaluation stand- ard of major hazard identification mathematical model proposed by Li Jiwei and other scholars was adopted, and the conclusion was drawn that construction in the road and hoisting PC beam in the process of lane construction are the main hazards. This paper pro- posed the control measures of security technology for hoisting PC beam, as a major dangerous source, mainly including selection of cranes meeting the safety requirements, control measures of lifting hazard, and technical measures of positioning PC beam safely. At present, the safety technical measures have been successfully used in PC track beam in 11,000 trusses of Chongqing rail transit lines No.l, No.2, and No.3; trod provided technical support for PC beam erection in Daegu Metro Line No.3 of South Korea.
出处
《都市快轨交通》
北大核心
2016年第3期87-90,共4页
Urban Rapid Rail Transit
关键词
单轨工程
架梁
危险源
识别
控制
monorail project＇, erecting beam
hazard
identification
control
