复杂城市环境地铁项目电力管线迁改

Relocation of Power Pipelines in Metro Project with Complex Urban Environment

【目的】现状市政电力管廊线影响轨道交通济安街站车站主体结构施工,为确保电力正常供电,电力管线需要永久迁改至车站主体结构北侧。【方法】电力管线迁改前,通过对施工现场状况的深入调查分析,与相关产权单位对接,获取丰富的管线资料,编制详细的施工方案并进行现场交底。【结果】从基坑支护、土方开挖、电力管沟结构施工等方面,确保了管线迁改安全有序进行。【结论】管线迁改工程实施前需要查明管线分布情况,通过对施工现场状况的深入调查分析,与相关产权单位对接,编制管线迁改方案,确保管线迁改安全有序进行。基坑支护采用拉森Ⅳ新型钢板桩,注意钢支撑必须安装防脱装置,保证施工安全。

[objective]in order to ensure the normal power supply,the power pipelines should be perman-ently relocated to the north side of the main structure of Ji'an Street station.[methods]before the relocation of electric power pipelines,through in-depth investigation and analysis of the construction site conditions,docking with the relevant property rights units to obtain rich pipeline data,compile detailed construction plans and make an on-site disclosure.[results]from the aspects of foundation pit support,earthwork excavation and construction of electric power pipe trench structure,the safe and orderly relocation of pipelines was ensured.[conclusion]before the implementation of pipeline relocation project,it is necessary to find out the distribution of pipelines,through in-depth investigation and analysis of the construction site conditions,connect with the relevant property rights units,and work out the pipeline relocation project,ensure the pipeline transition is carried out in a safe and orderly manner.Larsen IV new type steel sheet pile is adopted in foundation pit support.Attention should be paid to installation of anti-slip device in steel support to ensure construction safety.