本文選題：城際高鐵 + 振動數(shù)值評估��； 參考：《西南交通大學》2015年碩士論文

【摘要】：進入新世紀以來,隨著我國經(jīng)濟建設(shè)的飛速發(fā)展,鐵路的建設(shè)發(fā)展也邁出了嶄新的一章。其所產(chǎn)生的鐵路振動危害也越來越明顯。而如今,在我國內(nèi)省-省之間以及省-市之間越來越多的高速鐵路在規(guī)劃修建的時候無可避免地選擇了一些敏感的路線,這些敏感路線會穿越以及沿途涉及到一些文物古跡,振動會對文物古跡造成無形的影響和破壞。因此基于如何有效的防護振動這一前提,預(yù)測振動影響就成為了新時代鐵路干線的新難題。本文所研究背景是正在規(guī)劃建設(shè)中的京張城際鐵路,根據(jù)鐵路路網(wǎng)規(guī)劃,和選線計劃需要,將會三次下穿北京八達嶺長城和水關(guān)長城等重點保護單位,鐵路的開通運營將不可避免地對長城的保護產(chǎn)生有害影響。高速列車引起的振動對長城本體而言,是典型的動力問題,本文采用定性分析和定量計算等方法,通過實地考察調(diào)研,開展了現(xiàn)場調(diào)查測試工作,利用瞬態(tài)表面波法對相關(guān)地段進行測試,獲取地質(zhì)參數(shù)和技術(shù)指標,通過對結(jié)構(gòu)物主體進行縱波測試,得到主體結(jié)構(gòu)物最大容許振動速度,對長城本體耐震程度進行理論計算,獲得了列車振動源、巖體物理力學性能以及相關(guān)地段的地質(zhì)參數(shù)資料,最后建立軌道-山體-隧道的三維模型,采用國際上通用的大型有限元動力分析軟件ANSYS和Universal Mechanism,進行三維實體有限元數(shù)值分析模擬和有限元仿真模擬計算分析,研究新建北京至張家口城際列車對長城本體的影響。最終根據(jù)三種不同方法的結(jié)論對比,得到鐵路選線的振動影響結(jié)論,并提出減振措施和施工爆破建議。為了保護我國重要的文化瑰寶—長城,評估京張城際列車運行對長城的影響程度,不僅是一個重要立項的依據(jù)之一,也為以后此類相關(guān)問題的深入研究提供理論和參考依據(jù)。
[Abstract]:In the new century, with the rapid development of China's economic construction, railway construction has also taken a new chapter. The damage caused by railway vibration is becoming more and more obvious. And today, more and more high-speed railways in our country, between provinces, cities and cities, inevitably choose sensitive routes when planning and building, and these sensitive routes will traverse and involve cultural relics and monuments along the way. Vibration will cause intangible impact and destruction on cultural relics and monuments. Therefore, based on the premise of how to protect vibration effectively, predicting the influence of vibration becomes a new difficult problem of railway trunk line in the new era. The background of this paper is the Beijing-Zhangzhou-Intercity Railway, which is under planning and construction. According to the railway network planning and the needs of the route selection plan, key protection units such as Beijing Badaling the Great Wall and Shuiguan the Great Wall will be cut down three times. The opening and operation of the railway will inevitably have harmful effects on the protection of the Great Wall. The vibration caused by high-speed train is a typical dynamic problem to the Great Wall itself. This paper adopts qualitative analysis and quantitative calculation methods, through field investigation and investigation, carries out field investigation and test work. By using the transient surface wave method to test the relevant sections, the geological parameters and technical indexes are obtained, and the maximum allowable vibration velocity of the main structure is obtained by measuring the longitudinal wave of the main body of the structure, and the degree of earthquake resistance of the main body of the Great Wall is calculated theoretically. The data of train vibration source, physical and mechanical properties of rock mass and geological parameters are obtained. Finally, a three-dimensional model of track mountain body tunnel is established. In this paper, a large-scale finite element dynamic analysis software ANSYS and Universal Mechanism are used to study the influence of the newly built Beijing-Zhangjiakou intercity train on the Great Wall body by means of three-dimensional solid finite element numerical analysis and finite element simulation calculation. Finally, according to the conclusion comparison of three different methods, the conclusion of vibration influence of railway line selection is obtained, and the vibration reduction measures and construction blasting suggestions are put forward. In order to protect the important cultural treasure of our country-the Great Wall, it is not only one of the important foundation to evaluate the influence degree of Beijing-Zhangcheng train operation on the Great Wall, but also provide theoretical and reference basis for further research on this kind of related issues.
【學位授予單位】：西南交通大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U455

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本文編號：1996395