摘要
西气东输二线(西二线)工程江河顶管穿越是我国首次大规模长距离、复杂地质河流顶管穿越工程,因地质结构复杂、地下水压高以及地层岩性变化大等条件限制,顶管施工难度较大。通过对西二线顶管工程实践和存在的施工问题进行分析,提出我国复杂地质河流顶管特殊技术要求:完善现有顶管工程设计规范,明确更加具体的物探资料;根据顶管机性能和设备配置等完善针对性较强的顶管施工规范;从技术、装备等方面改进复杂地质竖井施工能力;结合工程实际制定复杂地质河流顶管工程费用测算和工程管理制度,为类似河流岩石顶管工程提供技术支持和保障。
River pipe-jacking crossing in the Second West-to-East Gas Pipeline Project is China＇s first large-scale and long-distance complicated geological river pipe-jacking crossing project. Due to the restrictions of geological structure, high groundwater pressure, large formation lithology change and other conditions, pipe-jacking construction is difficult. Through investigation and analysis of pipe-jacking engineefng practice and construction problems in the Second West-to- East Gas Pipeline Project, China＇s special technical requirements for complicated geological complex river pipe-jacking are proposed. The existing pipe-jacking engineering design specifications are improved and more specific geophysical data are defined. The highly targeted pipe-jacking specifications are improved according to pipe-jacking system performance and device configuration. The construction capacity of geologically complex shafts are improved in terms of technologies and equipments. The cost estimate and management system of complicated geological river pipe-jacking project are developed based on actual conditions of the project to provide technical supports and safeguard to the subsequent river rock pipe- jacking project. （1 Table, 2 Figures, 5 References）
出处
《油气储运》
CAS
2013年第1期97-100,共4页
Oil & Gas Storage and Transportation
关键词
西气东输二线
长输油气管道
顶管
复杂地质
工程实践
The Second West-to-East Gas Pipeline Project, long-distance oil and gas pipeline, pipe jacking, complexgeology, engineering practice
