發(fā)布時(shí)間：2018-07-18 18:48

【摘要】：隨著國內(nèi)礦井建設(shè)朝著大型化、集約化和現(xiàn)代化發(fā)展,傳統(tǒng)的礦井施工方法面臨新的挑戰(zhàn),難以滿足大型礦井快速安全建設(shè)的要求。盾構(gòu)具有機(jī)械化程度高、施工質(zhì)量好、掘進(jìn)速度快、節(jié)省勞動(dòng)力、安全等明顯優(yōu)勢,在礦山中的應(yīng)用越來越多,成為礦山開采掘進(jìn)常用的機(jī)械設(shè)備。同時(shí)隨著我國城市化的進(jìn)程,人口大量向城市集中,城市規(guī)模不斷擴(kuò)大,于是地下空間的開發(fā)成為城市建設(shè)的必然趨勢。而隧道工程是地下工程的重要組成部分,盾構(gòu)法因其眾多優(yōu)點(diǎn)而被廣泛應(yīng)用于城市隧道工程的建設(shè)中。由于在盾構(gòu)施工工程中,地層不可避免的會(huì)受到擾動(dòng)而產(chǎn)生變形,當(dāng)?shù)貙幼冃芜^大時(shí)便會(huì)引起一系列的工程問題。因此,對盾構(gòu)施工引起的地層變形進(jìn)行研究具有重大意義。本文首先對隧道盾構(gòu)施工引起地層變形的國內(nèi)外研究成果進(jìn)行分析總結(jié),主要有經(jīng)驗(yàn)公式法、模型試驗(yàn)法、理論解析法、數(shù)值分析法及現(xiàn)場實(shí)測法等預(yù)測方法;然后對盾構(gòu)施工引起地層變形的機(jī)理進(jìn)行研究分析,簡單介紹了盾構(gòu)法及其在我國的發(fā)展情況,詳細(xì)敘述了盾構(gòu)施工引起地層變形的時(shí)空效應(yīng)理論,對盾構(gòu)施工引起地層變形的原因進(jìn)行深入分析;結(jié)合杭州地鐵1號線文澤路站~文海南路站區(qū)間工程實(shí)際,進(jìn)行盾構(gòu)選型和管片結(jié)構(gòu)設(shè)計(jì),對盾構(gòu)施工過程進(jìn)行受力計(jì)算,采用FLAC3D建立數(shù)值模型,對盾構(gòu)施工過程進(jìn)行了三維動(dòng)態(tài)數(shù)值模擬,研究分析盾構(gòu)施工引起地層變形的規(guī)律;制定現(xiàn)場監(jiān)測方案,對現(xiàn)場實(shí)測數(shù)據(jù)和數(shù)值模擬結(jié)果進(jìn)行對比分析;最后提出控制地層變形的工程措施,如避免盾構(gòu)停機(jī)、合理控制土倉壓力等。研究結(jié)果表明采用數(shù)值模擬對實(shí)際工程進(jìn)行地層變形預(yù)測和分析是可行的。本文研究成果對盾構(gòu)隧道設(shè)計(jì)與施工具有一定的指導(dǎo)和參考意義。
[Abstract]:With the development of large-scale, intensive and modern mine construction in China, the traditional mine construction methods are facing new challenges, and it is difficult to meet the requirements of rapid safety construction of large-scale mines. Shield machine has many advantages, such as high mechanization, good construction quality, fast driving speed, saving labor force, safety and so on. At the same time, with the process of urbanization in China, a large number of people concentrate to the city, the scale of the city is expanding, so the development of underground space has become the inevitable trend of urban construction. Tunnel engineering is an important part of underground engineering, shield method is widely used in the construction of urban tunnel engineering because of its many advantages. In shield construction engineering, the formation will inevitably be disturbed and deformed, when the local layer deformation is too large, it will cause a series of engineering problems. Therefore, it is of great significance to study the formation deformation caused by shield construction. In this paper, the domestic and foreign research results of ground deformation caused by shield tunneling are analyzed and summarized, including empirical formula method, model test method, theoretical analysis method, numerical analysis method and field measurement method. Then, the mechanism of formation deformation caused by shield construction is studied and analyzed, the shield method and its development in China are introduced, and the space-time effect theory of stratum deformation caused by shield construction is described in detail. The causes of formation deformation caused by shield construction are deeply analyzed, combined with the actual project between Wenze Road Station and Wenhai South Road Station of Hangzhou Metro Line 1, the shield type selection and segment structure design are carried out, and the force acting on shield construction process is calculated. Using FLAC3D to establish numerical model, the 3D dynamic numerical simulation of shield construction process is carried out, and the law of ground deformation caused by shield construction is studied and analyzed, and the on-site monitoring scheme is established, and the field measured data and numerical simulation results are compared and analyzed. Finally, some engineering measures are put forward to control the formation deformation, such as avoiding shield machine shutdown and reasonably controlling the pressure of soil bunker. The results show that it is feasible to predict and analyze the formation deformation by numerical simulation. The research results of this paper have certain guidance and reference significance for shield tunnel design and construction.
【學(xué)位授予單位】：中國礦業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：U455.43

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 張冬梅,黃宏偉,王箭明;盾構(gòu)推進(jìn)引起地面沉降的粘彈性分析[J];巖土力學(xué);2001年03期

2 張利民,李大勇;盾構(gòu)掘進(jìn)過程土體變形特性數(shù)值模擬[J];巖土力學(xué);2004年S1期

3 廖少明,余炎,彭芳樂;盾構(gòu)近距離穿越相鄰隧道施工的數(shù)值解析[J];巖土力學(xué);2004年S2期

4 敖日汗;張義同;;盾構(gòu)施工引起的固結(jié)沉降分析[J];巖土力學(xué);2011年07期

相關(guān)碩士學(xué)位論文 前1條

1 吳修鋒;頂管施工引起的地層移動(dòng)與變形控制研究[D];南京工業(yè)大學(xué);2004年

，

本文編號：2132649