| 摘要:（摘要内容经过系统自动伪原创处理以避免复制，下载原文正常，内容请直接查看目录。） 摘要：冻胀、融沉是多年冻土区管道工程中罕见的成绩，严重作用了输油管道任务状况的稳固性。多年冻土的工程地质特征及其相干的工程地质成绩是以后我国冻土区管道工程扶植所面对的挑衅。本文以建成运营中的中俄原油管道工程为研究对象，在总结后人研究及中国西南地域多年冻土重要特点和散布纪律的基本上，联合研究区管道工程扶植理论，俄语论文，论述了与管道稳固性相干的冻土冻胀融沉机理，总结了作用冻胀融沉特征的重要身分；根据管道扶植相干标准和现场实测数据，以条理剖析法联合隐约综合评价办法，对管道的任务状况停止了综合评价，具有主要的实际和理论意义。剖析研究注解，研究区多年冻土的空间散布呈不持续散布，自北向南由年夜片岛状多年冻土区逐步过渡为零碎岛状多年冻土区。因为全球气象变暖，多年冻土的退步趋向比拟显著，从研究区多年冻土的退步表示来看，北部多年冻土退步重要表示较为迟缓，而南部退步较为激烈。依据世界规模内的管道扶植经历剖析，估计中俄原油管道的掉稳情势重要是冻土冻胀融沉惹起的过年夜的管道差别变形。作用冻胀融沉机能的重要身分有土的粒度构成、含水量、干密度和温度，对冻土的冻融性质起主导和掌握感化。别的，地形地貌、植被笼罩、地下水补给等情况身分对冻融性质起加快和增进感化。在综合剖析各作用身分的感化与整顿现场实测数据后，本文彩用条理剖析法联合隐约数学实际对中俄原油管道停止稳固性综合评价。稳固性剖析采取二级隐约评价模子，拔取了15个作用管道稳固性的重要身分，肯定了各作用身分的各级界线值。在管道稳固性评价中，准则层身分采取专家评定法和1一9标度法两种措施。管道隐约综合评价成果注解，研究区内分歧地段的管道状况，应依据其稳固性的评价成果，采取分歧的、公道的加固办法，俄语论文题目，避免冻害成长。 Abstract: Abstract: frost heaving and thaw settlement is rare in the permafrost zone, pipeline engineering achievements, has seriously affected the stability of the pipeline work conditions. Engineering geological characteristics of permafrost and its related engineering geological achievements are the challenges to the construction of pipeline engineering in permafrost regions in China. The to the completion of the operation of the China Russia crude oil pipeline project as the research object, in the later research and China Southwest Regional permafrost important characteristics and summarize the distribution discipline, joint research zone pipeline project construction theory, discusses and pipeline solid the coherence of the frost heaving and thawing settlement mechanism, summed up the influence of frost heaving and thaw, settling characteristics of important factors; according to the pipe support coherent standard and field measured data, to structured analysis method combined with vague comprehensive evaluation approach, task status of pipeline stopped comprehensive evaluation, has important practical and theoretical significance. Analysis of research notes, the spatial distribution of permafrost in the study area was not continued to spread, from north to south by the island permafrost region gradually transition to a fragmented Island permafrost area. Because of global warming, the trend of the degradation of permafrost is more significant, from the study area for many years, said the decline in permafrost, the northern part of the frozen soil is important to say more slowly, and the southern step back more intense. On the basis of the pipeline construction in the world within the scope of experience analysis, estimation of China Russia crude oil pipeline is broken firm situation important is permafrost thawing pipes caused by the Chinese new year night difference deformation. Influence of frost heaving and thaw sink function status have soil particle size composition, water content, dry density and temperature, of frozen soil freezing and thawing nature plays a leading and control effect. In addition, topography, vegetation cover, groundwater recharge and other factors on the nature of the freezing and thawing to accelerate and enhance the role of. On the comprehensive analysis of the influence factors of the influence and rectify the field measured data, this paper uses the method of systematic analysis of the combination of the mathematical theory of Sino Russian crude oil pipeline to stop the stability of comprehensive evaluation. Stability analysis adopts two levels of fuzzy evaluation model, select the 15 factors affecting the stability of the pipeline, and affirmed the different levels of boundary value. In the stability evaluation of the pipeline, the principle layer is adopted by the expert evaluation method and the 9 one two scale method. Pipeline vague comprehensive evaluation of the results of the annotation and research area of lots of differences of pipe conditions should be according to the stability evaluation results, take differences, reasonable strengthening methods and avoid damage growth. 目录: |
