水毀災(zāi)害作用下腐蝕缺陷管道的力學(xué)行為分析與可靠性模型研究
[Abstract]:Oil and gas pipelines in China are facing the double threats of geological hazards and man-made activities. The safety of oil and gas pipelines is directly related to the safety of energy transportation in China, so the safety of pipelines is a key problem to be solved. By consulting the literature and investigating the cases of pipeline accidents at home and abroad in recent years, it is found that the geological disaster of water damage is one of the key factors threatening the safety of existing pipelines. By referring to all kinds of data and combining with the practical problems encountered in pipeline engineering, this paper first analyzes the present safety, economic and technical situation of oil and gas pipeline transportation. Then according to the investigation results of oil and gas pipelines in southwestern China, looking up the existing achievements and classifying the water damage of pipelines according to the commonly used methods, The classification table of pipeline water damage recognition is obtained according to various classification rules. Combined with the classification results of pipeline water damage, this paper further explains the cause of pipeline water damage and the action form of pipeline water damage. In addition, according to the actual cases of water destruction in Shiting reach of Deyang in Lancheng and Chongqing pipeline, which resulted in the pipeline suspended 380 meters, the paper consulted the data of pipe material, soil parameters, water damage force and so on. The finite element software Abaqus is used to establish the pipe-soil interaction model. Firstly, it is verified that the limit suspension length in the case of pipeline suspension can reach 436m. Then, a numerical analysis model for the suspension of pipes with diameter to thickness ratio of 100: 1 is established, and the maximum suspended length of pipes with different diameters is obtained when the ratio of diameter to thickness is 100: 1. Finally, the limit suspension length of the pipeline with corrosion defect is studied and the limit state equation of suspension length of the pipeline with corrosion defect is established. The specific completion steps are as follows: (1) collecting the data of pipeline corrosion, determining the shape of the corrosion pit of the pipeline studied as cuboid. (2) establishing the model of corrosion pit located at the end of suspended pipe and in the middle of pipeline span, respectively. Considering the influence of the depth, width and length of the corrosion pit on the limit suspension length of pipeline, the curve of the depth affecting the limit suspension length and the curve of width affecting the limit suspension length are drawn. The curve of the limit suspension length is affected by the length of the corrosion pit, and the curve of the maximum displacement of the pipe is affected by the corrosion pit. (3) the influence of the corrosion pit on the limit suspended length of the pipeline and the relationship between the factors affecting it, The limit state equation of pipeline suspension length is established. Common methods for calculating failure probability and reliability are also introduced. The main conclusions of this paper are as follows: (1) the classification table of pipeline water damage is established according to the cause of the disaster, the dynamic medium and the location of the disaster, the pipeline crossing terrain, the mechanism of water destruction and the water destruction terrain, and the scale of water destruction, and according to the results of the classification. The influence of geological condition, precipitation condition and artificial activity on pipeline water damage disaster is analyzed. (2) when the diameter to thickness ratio is 100: 1 and the diameter of pipe is more than 530 mm, The ultimate suspended length of pipeline remains constant with the increase of pipe diameter. (3) the location of corrosion pits has a great influence on the ultimate suspended length of pipeline. (4) the limit suspension length of pipeline with corrosion defect decreases with the increase of corrosion depth, and (5) the limit suspension length of pipeline with corrosion defect decreases with the increase of corrosion width. The length of corrosion pit has little effect on the limit suspension length of pipeline. (7) the length of corrosion defect, The depth and width have little effect on the maximum displacement of pipeline. (8) the limit state equation of pipeline with corrosion defect is established and the reliability is solved.
【學(xué)位授予單位】:西南石油大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TE988.2
【相似文獻】
相關(guān)期刊論文 前7條
1 孔高峰;馬筱軍;高海明;梁孝忠;;油田黃土塬地區(qū)道路水毀成因及治理[J];石油工程建設(shè);2010年03期
2 田偉平;馬保成;舒淼;;山區(qū)沿河公路路基水毀災(zāi)害易損性評價[J];自然災(zāi)害學(xué)報;2011年05期
3 李賓;;天山公路2010年水毀成因分析、處治方案及幾點思考[J];西部探礦工程;2011年11期
4 魏鴻標;楊占山;;公路建設(shè)中邊坡水毀模式與處治對策[J];青海環(huán)境;2007年04期
5 瞿苗葉;;瀝青路面早期水毀簡析及防治對策[J];西部探礦工程;2006年09期
6 齊洪亮;田偉平;李家春;;山區(qū)沿河路基水毀災(zāi)害風險定量評價方法[J];自然災(zāi)害學(xué)報;2014年02期
7 劉科昌;;讓公路應(yīng)急管理作用最大化[J];中國公路;2012年09期
相關(guān)會議論文 前6條
1 劉丹;;淺談山區(qū)公路的水毀防治[A];全國城市公路學(xué)會第二十一次學(xué)術(shù)年會論文集[C];2012年
2 姜建平;紀宏;支峰;;濟南山區(qū)道路水毀處治對策探討[A];公路交通與建設(shè)論壇(2011)[C];2003年
3 殷昭峰;;高速公路邊坡水毀應(yīng)急處置方案探究[A];公路交通與建設(shè)論壇(2011)[C];2003年
4 郭玉民;;山區(qū)高等級公路常見水毀分析與防治[A];節(jié)能環(huán)保 和諧發(fā)展——2007中國科協(xié)年會論文集(一)[C];2007年
5 梁志海;張慶福;趙洪波;梁若霖;;太平灣水電站下游防護堤水毀修復(fù)[A];2012年中國水力發(fā)電工程學(xué)會大壩安全監(jiān)測專委會年會暨學(xué)術(shù)交流會論文集[C];2012年
6 孫波;;山區(qū)公路水毀路基穩(wěn)定性分析及防范[A];2014年9月建筑科技與管理學(xué)術(shù)交流會論文集[C];2014年
相關(guān)重要報紙文章 前10條
1 吳高翔 劉洪春 郁培和;懷遠高標準完成水毀道路復(fù)通工程[N];蚌埠日報;2007年
2 記者 吳楚楚;廣東全面核查水毀公路情況[N];中國交通報;2006年
3 通訊員 陳文吉;福建投入5億元修水毀[N];中國水利報;2006年
4 王文奇;柞水籌資58萬元修復(fù)水毀通村水泥路[N];商洛日報;2007年
5 吳玉鋒邋萬青峰;張德軒:全力以赴做好水毀校舍重建工作[N];駐馬店日報;2007年
6 李高峰;雙槽鄉(xiāng)狠抓水毀道路修復(fù)[N];商洛日報;2008年
7 通訊員 張建國 朱岳松;安徽扎實推進水毀修復(fù)[N];中國水利報;2008年
8 刁春弟 過渡生;和縣水毀修復(fù)工程進度快[N];巢湖日報;2008年
9 王存富 何衍貴;資峪鄉(xiāng)返鄉(xiāng)農(nóng)民修復(fù)水毀遺留工程[N];商洛日報;2009年
10 王辛石;陜西渭河水毀修復(fù)啟動[N];中國水利報;2003年
相關(guān)博士學(xué)位論文 前3條
1 趙紅;秦巴山區(qū)公路橋涵抗水毀計算理論研究[D];長安大學(xué);2013年
2 張秀芳;非恒定流作用下丁壩水毀試驗研究[D];重慶交通大學(xué);2012年
3 齊洪亮;公路自然災(zāi)害評價系統(tǒng)的研究[D];長安大學(xué);2011年
相關(guān)碩士學(xué)位論文 前10條
1 李玉潔;山區(qū)鐵路路基水毀機制研究與預(yù)警系統(tǒng)開發(fā)[D];西南交通大學(xué);2015年
2 未紅紅;淶源縣水毀耕地復(fù)墾潛力及類型研究[D];河北農(nóng)業(yè)大學(xué);2015年
3 張玉;小米灘丁壩壩根水毀成因的試驗研究[D];重慶交通大學(xué);2016年
4 何寧;鐵嶺地區(qū)干線公路路基抗水毀技術(shù)與對策研究[D];沈陽建筑大學(xué);2014年
5 陳才方;水毀災(zāi)害作用下腐蝕缺陷管道的力學(xué)行為分析與可靠性模型研究[D];西南石油大學(xué);2017年
6 黃雙;埋地管道黃土潛蝕水毀災(zāi)害及安全評估方法研究[D];西南石油大學(xué);2017年
7 馬保成;沿河公路路基水毀災(zāi)害評價及防治措施研究[D];長安大學(xué);2008年
8 弋珂源;秦巴山區(qū)高速公路橋涵抗水毀設(shè)計安全性評價體系研究[D];長安大學(xué);2009年
9 劉愛光;公路路基水毀防治措施研究[D];吉林大學(xué);2011年
10 韓彥芳;廣巴高速公路某路段暴雨水毀機理及穩(wěn)定性研究[D];西南交通大學(xué);2013年
,本文編號:2310066
本文鏈接:http://sikaile.net/shoufeilunwen/boshibiyelunwen/2310066.html