广州地铁鹭江站施工安全技术体系研究

城市地铁工程主要穿越城市商业区和居民聚居区 ,施工过程中的安全技术问题可能对地表环境产生严重影响 ,甚至诱发地面塌陷等灾害发生。笔者结合广州地铁二号线鹭江站的施工实践 ,研究了城市地铁工程的施工安全技术 ;探讨了地铁车站施工安全监测中的维护桩变形、土体变形、支撑结构的受力状况、地下水水位、地下管线沉降和位移监测的实施细则 ;突出了对折返线施工过程的监测 ;研究了施工安全保障技术方法体系 ;对施工现场安全技术、施工工艺安全技术进行了深入分析 ;明确了基坑开挖、洞室掘进、空中作业等不同类型的施工场地和人工挖孔、爆破、模筑混凝土、钢支撑安装、防水层施做等各种施工工艺的安全保障技术方法 ;建立了安全施工和安全管理措施方法体系。

Study on Technical System of Construction Safety at Lujiang Station of Guangzhou Subway

Urban subway engineering bores through urban business districts and dense residential area. Construction accident will be likely to generate severe impact on ground environment, and even to cause disasters like ground collapse. The construction safety technology of urban subway project is studied. The implementation details of concrete items, such as maintenance pole deforming, land movement, stress situation of bracing structure, groundwater level, underground pipeline sedimentation, displacement monitoring, and especially the monitoring of round-trip line construction process are probed into. The system of construction safety is also explored. Safety technology at construction field and safety in construction technology are analyzed in depth. The safety measures at various construction fields such as foundation ditch excavation, chamber drilling and working high above the ground, and various construction technology such as personnel digging, blasting, modeling in concrete, steel bracing installation and waterproof layer plastering have been defined. The system of construction safety and management measure has been set up at last. All above have been studied combining with construction practice.