本文選題：空洞 + 隧道襯砌　； 參考：《石家莊鐵道大學(xué)》2015年碩士論文

【摘要】：隨著我國鐵路、公路等交通工程建設(shè)的快速發(fā)展,鐵路、公路隧道的數(shù)量迅速攀升。但是己運(yùn)營隧道己經(jīng)暴露出或多或少的病害,其中襯砌背后空洞是隧道病害中最普遍的現(xiàn)象之一。本文主要研究處于地震多發(fā)地區(qū)且襯砌背后出現(xiàn)了大量空洞的己運(yùn)營隧道,在地震荷載作用下的動力響應(yīng)規(guī)律,進(jìn)而,對隧道加固方案進(jìn)行研究。首先對襯砌背后空洞位置、徑向大小、環(huán)向大小、軸向大小,圍巖級別,隧道埋深等參數(shù)對隧道抗震的影響開展研究。本文通過襯砌結(jié)構(gòu)的加速度響應(yīng)、應(yīng)力響應(yīng)、內(nèi)力響應(yīng)來反映地震過程中空洞對隧道地震動力響應(yīng)影響。其次,對各影響因素進(jìn)行敏感性分析,對比得出對隧道襯砌結(jié)構(gòu)影響最大因素。最后對空洞隧道進(jìn)行加固,本文設(shè)計了四種加固方案:注漿加固、注漿+錨桿加固、注漿+內(nèi)襯加固、注漿+錨桿+內(nèi)襯加固,對比四種加固方案效果進(jìn)而選出最優(yōu)加固方案。
[Abstract]:With the rapid development of railway and highway construction in China, the number of railway and highway tunnels is increasing rapidly. However, the tunnel has been exposed to more or less diseases, among which the cavity behind the lining is one of the most common phenomena. This paper mainly studies the dynamic response law of a large number of hollow tunnels in earthquake-prone areas behind the lining, and then studies the reinforcement scheme of the tunnel. Firstly, the influence of the parameters such as cavity position, radial size, circumferential size, axial size, surrounding rock level, and tunnel depth on the seismic behavior of the tunnel is studied. In this paper, the response of acceleration, stress and internal force of lining structure is used to reflect the effect of cavity on dynamic response of tunnel during earthquake. Secondly, the sensitivity of each factor is analyzed, and the most influential factors on tunnel lining structure are obtained. Finally, four kinds of reinforcement schemes are designed: grouting reinforcement, grouting anchor lining strengthening, grouting anchor lining strengthening, and comparing the effect of four reinforcement schemes to select the best reinforcement scheme.
【學(xué)位授予單位】：石家莊鐵道大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：U455.91

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

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本文編號：1822344