本文選題：雙孔隧道 + 橫向沉降�。� 參考：《重慶大學(xué)》2014年碩士論文

【摘要】：隨著我國經(jīng)濟(jì)的發(fā)展，為了滿足交通需求，很多城市紛紛建造地鐵隧道，而且所建的地鐵隧道一般都是雙孔平行的。隧道施工將不可避免地引起地面的沉降，而當(dāng)?shù)乇沓两当容^大時，地下管線以及地面交通的正常使用會受到影響。現(xiàn)今，單孔隧道施工引起的地表沉降的研究比較多，，而對于雙孔平行隧道施工引起的地表沉降研究因為其規(guī)律比較復(fù)雜，研究起來不方便，所以大部分研究往往注重研究地表橫向沉降，而對于地表縱向沉降研究得很少。因此，有必要對雙孔平行隧道施工過程中引起的地表橫向沉降和縱向沉降進(jìn)行預(yù)測。鑒于現(xiàn)代大型計算機(jī)的快速發(fā)展，可用有限元軟件對隧道施工引起的地表沉降進(jìn)行模擬。 本文在查閱了國內(nèi)外大量文獻(xiàn)的基礎(chǔ)上，運用FLAC3D軟件模擬了彈性和彈塑性時地表沉降的規(guī)律，并用Schwarz交替法推導(dǎo)了在彈性條件下雙孔隧道施工引起的地表沉降規(guī)律。主要內(nèi)容包括： 1.研究不同埋深時雙孔隧道施工所引起的地表縱向（掌子面推進(jìn)方向）沉降曲線，總結(jié)出埋深對于地表縱向沉降的影響。 2.用FLAC3D軟件進(jìn)行模擬，研究兩隧道的間距、隧道深徑比、地層損失率對于地表橫向（掌子面所在方向）沉降的影響。 3.通過改變兩隧道的埋深，使兩隧道不在同一平面上。研究兩隧道埋深不同時對于地表沉降的影響。 4.運用復(fù)變函數(shù)和Schwarz交替法推導(dǎo)半無限平面內(nèi)雙孔隧道施工引起的地表橫向沉降，并和彈性條件下雙孔隧道的地表橫向沉降進(jìn)行驗證。
[Abstract]:With the development of our economy, in order to meet the traffic demand, many cities have built subway tunnels, and the subway tunnels are usually two-hole parallel. Tunnel construction will inevitably cause land subsidence, and when the surface subsidence is large, the normal use of underground pipelines and surface traffic will be affected. Nowadays, there are many researches on the surface settlement caused by the construction of single hole tunnel, but the study of surface settlement caused by the construction of two-hole parallel tunnel is not convenient because of its complicated law. Therefore, most of the studies focus on the study of lateral surface subsidence, but very little research on surface longitudinal settlement. Therefore, it is necessary to predict the lateral and longitudinal settlement of the surface caused by the construction of the two-hole parallel tunnel. In view of the rapid development of modern mainframe computer, the surface settlement caused by tunnel construction can be simulated by finite element software. On the basis of consulting a large number of literatures at home and abroad, this paper simulates the law of surface subsidence under elastic and elastic-plastic conditions by using FLAC3D software, and deduces the law of surface subsidence caused by double-hole tunnel construction under elastic conditions by Schwarz alternating method. The main contents include: 1. This paper studies the settlement curve of the surface longitudinal (the propelling direction of the palm surface) caused by the construction of the double-hole tunnel under different buried depths, and summarizes the influence of the buried depth on the surface longitudinal settlement. 2. By using FLAC3D software, the effects of the distance between two tunnels, the ratio of tunnel depth to diameter and the rate of formation loss on the lateral settlement of the surface (the direction of the face) are studied. By changing the depth of the two tunnels, the two tunnels are not on the same plane. The influence of different buried depth of two tunnels on surface subsidence is studied. 4. By using the complex variable function and Schwarz alternating method, the surface lateral settlement caused by the construction of the two-hole tunnel in the semi-infinite plane is deduced, and verified with the surface lateral settlement of the double-hole tunnel under elastic conditions.
【學(xué)位授予單位】：重慶大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U456.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 錢七虎;城市可持續(xù)發(fā)展與地下空間開發(fā)利用[J];地下空間;1998年02期

2 曾小清,曹志遠(yuǎn);半解析數(shù)值法在地鐵工程雙線隧道分析中的應(yīng)用[J];工程力學(xué);1998年01期

3 陳饋;;TBM在鐵路隧道施工中的應(yīng)用前景[J];建筑機(jī)械;2006年15期

4 吳笑偉;;國內(nèi)外盾構(gòu)技術(shù)現(xiàn)狀與展望[J];建筑機(jī)械;2008年15期

5 張豫生,莫耀升,茅承覺;全斷面巖石掘進(jìn)機(jī)施工經(jīng)濟(jì)分析——全斷面巖石掘進(jìn)機(jī)技術(shù)講座之七[J];建筑機(jī)械;1999年03期

6 朱衛(wèi)平,胡珉,郭平;盾構(gòu)疊交隧道地層移動分析[J];力學(xué)與實踐;2003年04期

7 曾小清,孫鈞,曹志遠(yuǎn);隧道工程施工過程中的力學(xué)分析[J];同濟(jì)大學(xué)學(xué)報(自然科學(xué)版);1998年05期

8 王紹君;王偉;劉少軍;;淺埋暗挖法地鐵施工地表沉降的分析與研究[J];華中科技大學(xué)學(xué)報(城市科學(xué)版);2008年03期

9 張路青,呂愛鐘;雙孔圓形洞室圍巖應(yīng)力分析的交替法研究[J];巖石力學(xué)與工程學(xué)報;1998年05期

10 耿培剛,李曉濤;城市淺埋暗挖地鐵隧道沉降控制與分析[J];中國資源綜合利用;2005年10期

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