大型储罐软基础CFG群桩沉降观测及分析
Discussion on Hollowing Problem in Secondary Grouting of Cement-based Grouting Material for Heavy Rotary Machinery
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- DOI:
- 作者:
- 彭建国1, 王品毅2
PENG Jian-guo1
- 作者单位:
- 1.中国石油工程建设公司 北京 100120;
2.辽河石油勘探局油田建设工程二公司 辽宁盘锦 124012
China Petroleum Engineering & Construction Corp., Beijing 100120, China
- 关键词:
- 软土地基;CFG群桩;沉降
rotary machinery foundation;cement-based grouting material;secondary grouting;hollowing crack;preventive measurre
- 摘要:
- 储罐的基础沉降常导致储罐顶盖变形并影响浮盘的正常使用，一般要对软地基进行处理。CFG群桩复合地基可应用于大型储罐的地基处理。以伊拉克某油田中心处理站的2座5万m3的储罐为研究对象，观测了满水静载条件下的沉降值，并对其进行了理论计算，结果表明采用CFG群桩可以明显减少软土地基的整体沉降。
Foundations of large rotary machinery are mostly built with secondary grouting method using special grouting materials.In the foundation construction,there often are lots of defects such as hollowing and cracking in the rotary machinery foundations.The reasons for hollowing and cracking produced in secondary grouting are discussed in this paper.Measures are put forward to strengthen the construction management and prevent hollowing produced in secondary grouting.2013,3(3): 79-81 收稿日期：2012-8-11DOI：10.3969/j.issn.1001-2206.2013.03.024作者简介：彭建国(1972-)，男，广西桂林人，工程师，1996年毕业于西安石油学院，现主要从事海外石油工程建设工作。参考文献：
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[2] 蒋淑华.柔性基础下CFG桩复合地基沉降的影响因素分析及计算[D].南京：河海大学,2006.
[3] 何利民.油气储运工程施工[M].北京石油工业出版社, 2007.254-267.
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