地面沉降地区天然气管线安全性评估研究  

Assessment of serviceability of gas pipeline in surface subsidence area

作　　者：朱小华[1] 李永树[2] 

机构地区：[1]中国石油西南油气田销售分公司,四川成都610051 [2]西南交通大学土木工程学院,四川成都610031

出　　处：《四川建筑科学研究》2009年第6期102-105,共4页Sichuan Building Science

基　　金：国家自然科学基金资助项目(40371098)

摘　　要：地面沉降导致位于地表的天然气管线随之沉降,直接影响到天然气管线的安全使用。根据地面沉降所表现的6种移动与变形形式,研究了这些移动与变形对天然气管线的破坏特征和影响规律,推导出天然气管线移动与变形的预测公式,讨论了天然气管线受到地面沉降影响程度的预测与分析方法,提出了防治天然气管线沉降的技术方案。最后,列举了一个预测天然气管线沉降的实际例子。A gas pipeline subsidence is caused by surface subsidence,and the safety of the gas pipeline directly impaired. There are six models for surface subsidenee. The characteristics of damaged gas pipeline with surface subsidence are studied in this paper. The predicting formulas of the gas pipeline movements and deformations are educed. The predicting and analyzing methods of destructive effects on the gas pipeline are discussed. The measures of prevention and maintenance of the gas pipeline subsidence are put forward. Lastly, an actual example for protecting the gas pipeline located in surface subsidence area is given.

关 键 词：地面沉降 天然气管线 安全性评估 

分 类 号：TU433[建筑科学—岩土工程]