【摘要】：隧道開挖過(guò)程中，，圍巖變形的監(jiān)控量測(cè)對(duì)隧道安全施工非常重要。目前，隧道圍巖位移監(jiān)控量測(cè)一般對(duì)掌子面開挖后圍巖的變形量測(cè)，造成了圍巖變形信息收集不完整，即存在一定損失位移尤其是軟弱圍巖更不能忽略。本文依托阿拉坦隧道監(jiān)控量測(cè)，對(duì)隧道出口淺埋段開挖過(guò)程地表和圍巖豎向位移進(jìn)行了監(jiān)測(cè)，并在此基礎(chǔ)上三維模擬了隧道開挖過(guò)程圍巖變形，得到了阿拉坦隧道V級(jí)圍巖出口淺埋段全位移變化規(guī)律。其主要研究?jī)?nèi)容如下： 1.依據(jù)阿拉坦隧道施工過(guò)程中現(xiàn)場(chǎng)測(cè)試得到了，地表和圍巖豎向全位移，分析了隧道開挖過(guò)程中地表和圍巖豎向全位移變化規(guī)律。 2.運(yùn)用MIDAS GTS有限元軟件，實(shí)現(xiàn)了對(duì)隧道開挖全過(guò)程的三維數(shù)值模擬。并將數(shù)值計(jì)算結(jié)果與實(shí)測(cè)地表、圍巖豎向全位移進(jìn)行了對(duì)比，分析了計(jì)算結(jié)果和實(shí)測(cè)結(jié)果的差異及其原因。 3.通過(guò)三維隧道開挖全過(guò)程數(shù)值模擬，分析了V級(jí)圍巖洞口淺埋段施工過(guò)程中的地表沉降與隧道圍巖周邊不同深度處全位移變化規(guī)律；并研究了隧道施工過(guò)程中圍巖分布范圍，以及造成該范圍大小的原因。 通過(guò)圍巖全位移的研究，為類似隧的設(shè)計(jì)和安全施工提供了參考依據(jù)。
[Abstract]:In the course of tunnel excavation, the monitoring and measurement of surrounding rock deformation is very important to the safe construction of tunnel. At present, the displacement monitoring measurement of tunnel surrounding rock is generally used to measure the deformation of surrounding rock after excavation, which results in incomplete collection of deformation information of surrounding rock, that is, there is a certain loss of displacement, especially the weak surrounding rock can not be ignored. Based on the monitoring measurement of Alatan tunnel, the vertical displacement of surface and surrounding rock in shallow buried section of tunnel exit is monitored, and the deformation of surrounding rock during tunnel excavation is simulated. The variation law of total displacement at the exit of V-level surrounding rock in Alattan Tunnel is obtained. The main research contents are as follows: 1. According to the field test during the construction of the Alattan tunnel, the vertical total displacement of the surface and surrounding rock is obtained, and the variation law of the vertical total displacement of the surface and surrounding rock during the excavation of the tunnel is analyzed. 2. The three-dimensional numerical simulation of the whole process of tunnel excavation is realized by using MIDAS GTS finite element software. The results of numerical calculation are compared with the measured total vertical displacement of the surrounding rock and the difference between the calculated results and the measured results is analyzed and the reasons for the difference between the calculated results and the measured results are analyzed. Through the numerical simulation of 3D tunnel excavation, this paper analyzes the law of surface subsidence and total displacement variation at different depths around tunnel surrounding rock during the construction of shallow buried section of V-class surrounding rock, and studies the distribution range of surrounding rock during tunnel construction. And the cause of the range. The research on the total displacement of surrounding rock provides a reference for the design and safe construction of similar tunnel.
【學(xué)位授予單位】：長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U456.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 李進(jìn)軍,王顯春,莊紀(jì)棟,黃茂松;淺埋暗挖隧道穿越樓房基礎(chǔ)的三維數(shù)值模擬[J];地下空間與工程學(xué)報(bào);2005年01期

2 馬時(shí)強(qiáng);;酉水隧道圍巖大變形及支護(hù)結(jié)構(gòu)數(shù)值模擬研究[J];地下空間與工程學(xué)報(bào);2009年03期

3 陳軍;杜守繼;李迎九;張文波;;軟弱圍巖隧道二次支護(hù)施作時(shí)機(jī)的數(shù)值模擬[J];地下空間與工程學(xué)報(bào);2009年S1期

4 王良,劉元雪;軟弱圍巖隧道開挖的有限元模擬[J];重慶工學(xué)院學(xué)報(bào);2005年08期

5 張桂生;毛江鴻;何勇;金偉良;;基于BOTDA的隧道變形監(jiān)測(cè)技術(shù)研究[J];公路;2010年02期

6 武勝林;鄧洪亮;陳凱江;朱明巖;;隧道監(jiān)控量測(cè)自動(dòng)預(yù)警管理系統(tǒng)及其應(yīng)用[J];測(cè)繪通報(bào);2013年06期

7 王顯春;莊紀(jì)棟;張宏博;;軟巖淺埋隧道施工對(duì)地表及圍巖變形的影響分析[J];隧道建設(shè);2006年01期

8 徐萬(wàn)鵬;隧道位移監(jiān)測(cè)新方法的可行性探索[J];鐵道工程學(xué)報(bào);2000年02期

9 王穗輝,潘國(guó)榮;人工神經(jīng)網(wǎng)絡(luò)在隧道地表變形預(yù)測(cè)中的應(yīng)用[J];同濟(jì)大學(xué)學(xué)報(bào)(自然科學(xué)版);2001年10期

10 劉永中;;地鐵隧道測(cè)量機(jī)器人自動(dòng)化變形監(jiān)測(cè)研究與應(yīng)用[J];鐵道勘察;2008年04期

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