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地面沉降对京沪高速铁路(北京-济南段)影响分析论文.pdf


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西南交通大学硕士研究生学位论文第1页摘要本论文的研究目的是研究掌握中原区域地面沉降特征及其对高速铁路工程的影响,并提出针对性的防治对策与工程措施,供高速铁路勘测、设计及施工参考。本文结合京沪高速铁路北京至济南段沿线地面沉降情况,采用统计分析方法对铁路沿线各段落的地面沉降的幅度、速率及线路坡度的改变进行了计算和预测,并参考有关规范标准计算分析了不均匀沉降对高速铁路坡度、桥梁、路基及轨道平顺性的影响。就高速铁路的运营可能对地面沉降产生的影响进行了讨论。研究确定了华北平原地面沉降区内的地表变形特征及其对高速铁路的影响方式、影响程度,并提出了针对性的防治措施和对策。结论表明,区域性地面沉降会改变线路坡度,同时对桥梁、路基及轨道平顺性会产生一定影响,而局部的不均匀沉降对高速铁路工程的影响相对较大, 可通过控制地下水开采、合理选线、采取合理的线路坡度及适宜的工程结构措施加以防治。高速铁路的运营会在一定程度上加剧地面沉降。关键词地面沉降:高速铁路:影响:工程措施西南交通大学硕士研究生学位论文第1I页 Abstract Present paperrs research purposes is through making clear of the characteristics of surface subsidence and itsinfluence on construction of higll-speed railway inNorth China plain,the countermeasures and construction measures for prevention ofsubsidence are put forward forthepurpose of providing reference tosurvey,design andconstruction ofhigh-speed railway. Combining with thecircumstance ofsurface subsidence along the line between Beijing and Jinan ofJingHu high-speed railway,the calculation and prediction are made foftheamp litudeandvelocity ofsurface subsidence andthe slopechange along therailway withtraditionalmethods,and alsothecalculations aremade for theinfluences of uneven surface subsidence on theregularities ofthe bridge,subgrade and track ofhigh-peed railway according tothe relative influence which possibly produced tothesurface subsidence by high-speed railroad’Soperation hascarried onthediscussion. Through doing research,the characteristics of surface deformation in subsidence area and itsinfluence manner anddegree on high·speed railway are made clear,and thecountermeasures andconstruction measures areputforward forprevention ofsubsidencer. Theconclusion indicated thattheregional surface subsidence can change trackslope and produce thecertaininfluence on theregularities ofthebridge, subgrade and trackofhigh-speed thelocal uneven surface subsidence canp roduce much influence onconstruction ofhigh-speed railway,but Call beprevented bycontrolling groundwater and adop ting r

地面沉降对京沪高速铁路(北京-济南段)影响分析论文 来自淘豆网www.taodocs.com转载请标明出处.

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