永冻土、季节性冻土、冻土沼泽地段长输管道大开挖施工
Large Excavation Construction for Long-distance Pipeline Trenching in Permafrost, Seasonal Frozen Soil or Frozen Swamp Areas
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- DOI:
- 作者:
- 冯大永
FENG Da-yong
- 作者单位:
- 辽河石油勘探局油田建设工程一公司
First Oilfield Construction Co., Liaohe Petroleum Exploration Bureau, Panjin 124010, China
- 关键词:
- 长输管道;冻土;大开挖;施工
long-distance pipeline;frozen soil;large excavation;construction
- 摘要:
- 中俄原油管道漠河—大庆段穿过连续多年冻土区、不连续多年冻土区、岛状多年冻土区及季节性冻土区。为避免管道施工对周围环境的影响和冻土融化对管道的影响，需要在冬季进行施工。永冻土地段管沟开挖施工中采用液压单钩挖掘机松动表层冻土，单斗挖掘机配合清理；冻土沼泽地段采用分层开挖方法施工，大大提高了施工质量和施工进度。
Mohe-Daqing Section of China-Russia Crude Oil Pipeline passes through continuous permafrost zones, discontinuous permafrost zones, island permafrost zones and seasonal frozen zones. In order to avoid the effect of pipeline construction on ambient environment and the effect of frozen soil thawing on pipeline, it is necessary to do the pipeline construction in winter. When trenching in permafrost zone, the surface layer frozen soil is loosened by hydraulic single hook grab, then the soil is cleaned by single shovel grab; when trenching in frozen swamp zone, the layered excavation approach is applied, which greatly improves the construction quality and schedule reliability.2012,6(6): 93-95 收稿日期：2011-9-17作者简介：冯大永（1979-），男，辽宁盖州人，工程师，2002年毕业于江汉石油学院（现长江大学），现从事油田地面建设工程技术管理工作。参考文献：
[1] 杨永鹏，韩龙武，丁靖康，等. 人工地基在多年冻土区管道地基处理中的应用[J]. 石油工程建设，2009，35（2）：5-9.