高水位流沙地段管沟二次双侧开挖的新方法
New Method of Secondary Trenching from Both Sides Used in Frozen Earth Area with High Water Table and Quicksand
浏览(1664) 下载(2)
- DOI:
- 作者:
- 李国明, 许富强, 付新锋, 帅恩元
LI Guo-ming, XU Fu-qiang, FU Xin-feng
- 作者单位:
- 中国石油长庆油田分公司建设工程处
Construction Engineering Division of Changqing Oilfield Co., Xi'an 710086, China
- 关键词:
- 长输管道;冻土原理;高水位流沙段;双侧沉管
frozen earth mechanism;area with high water table and quicksand;primary pipeline laying down from both sides;secondary pipeline laying down from both sides
- 摘要:
- 以高水位流沙地段的管沟开挖为研究对象,利用陕北冬季冻土层厚度可达1.2 m的地域水文特征,在一次双侧沉管的基础上,探索出二次双侧开挖新方法,降低了土方开挖量,取消了抽排水措施,提高了施工工效,节约了施工成本。
Taking the trenching technique in the area with high water table and quicksand as the research object, a new trenching method suitable for the North Shannxi region with hydrologic feature of 1.2 m thick frozen earth in winter is explored, i.e. the secondary trenching from both sides after the primary pipeline laying down from both sides. This new method has the advantages of decreasing earthwork volume, avoiding water pumping and draining, increasing construction efficiency and saving construction cost.2010,S1(S1): 233-236 收稿日期：2010-11-18分类号：TE973作者简介：李国明（1981-），男，甘肃庆阳人，2007年毕业于西安石油大学材料加工工程专业，硕士，现从事工程项目技术与质量管理工作参考文献：
[1] JGJ 118-1998，冻土地区建筑地基基础设计规范[S].
[2] 筑龙网. 地基与基础工程施工方案范例精选[M]. 北京：中国电力出版社，2007.
[3] 孙剑涛，李冰，王晓龙. 浅析冻土开挖技术[J]. 黑龙江水利科技，2003，31（3）:112-112