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随着我国油气不断开发,长输管道的不断扩大发展,长输管道通过特殊地段的施工越来越多,尤其是大型河流穿越,采用江底隧道穿越施工技术已逐渐成为特殊地段管道施工的可靠方法之一。以川气东送管道工程后河隧道内管道穿越工程为例分析其施工方法、管道组装焊接方式、敷设方式、施工时隧道内通风及照明、安全环保措施及体会,供施工者参考及施工交流。
With the continuous development of China’s oil and gas and the continuous expansion and development of long-distance pipelines, more and more pipelines are being constructed through special sections. Especially for large rivers, the construction of river-crossing tunnels has gradually become the reliable construction of pipelines in special sections One of the ways. Taking the pipeline crossing project behind the Chuanqi East Pipeline Project as an example, the construction methods, pipe assembly and welding methods, laying methods, ventilation and lighting in the tunnel during construction, safety and environmental protection measures and experiences for construction workers’ reference and construction exchange .