【摘要】：大坡度隧道（巷道）的掘進(jìn)過去很少用到盾構(gòu)，一般用鉆爆法等傳統(tǒng)方法施工，隨著國家建設(shè)的快速進(jìn)行，這些方法由于施工速度慢，已經(jīng)不再滿足要求快速、經(jīng)濟(jì)的大坡度隧道（巷道）的建設(shè)需求。與此同時(shí)，盾構(gòu)法安全、高效、快速、環(huán)保等優(yōu)點(diǎn)在施工領(lǐng)域得到了更大的體現(xiàn)，運(yùn)用盾構(gòu)法在大坡度隧道（巷道）中施工是一種必然趨勢(shì)。當(dāng)然，不能否認(rèn)，由于理論水平較低，施工經(jīng)驗(yàn)也嚴(yán)重欠缺，運(yùn)用盾構(gòu)法對(duì)大坡度隧道（巷道）施工還有許多問題需要研究和解決，其中管片襯砌結(jié)構(gòu)的受力和圍巖穩(wěn)定性的問題對(duì)工程建設(shè)影響很大，研究它們具有深遠(yuǎn)的意義。 本文依托新街臺(tái)格廟礦區(qū)的大坡度巷道建設(shè)項(xiàng)目，探討了大坡度隧道（巷道）管片參數(shù)的選型；提出了大坡度隧道（巷道）外荷載及管片受力的計(jì)算公式；通過運(yùn)用慣用法，對(duì)新街臺(tái)格廟礦區(qū)盾構(gòu)管片受力進(jìn)行了計(jì)算，得到了埋深對(duì)管片受力的影響規(guī)律；然后對(duì)坡角增大后管片受力進(jìn)行計(jì)算，比較后得到了坡角對(duì)管片受力的影響規(guī)律；提出了大坡度隧道（巷道）盾構(gòu)推力的計(jì)算公式，并對(duì)新街臺(tái)格廟礦區(qū)盾構(gòu)推力進(jìn)行了計(jì)算，，得到了埋深對(duì)盾構(gòu)推力的影響規(guī)律；然后計(jì)算了坡角增大后的盾構(gòu)推力，比較總結(jié)出了坡角對(duì)盾構(gòu)推力的影響規(guī)律；運(yùn)用FLAC3D對(duì)大坡度隧道（巷道）周邊圍巖變形情況進(jìn)行了模擬，得到了新街臺(tái)格廟礦區(qū)的圍巖變形情況；通過與增大坡角后的圍巖變形情況進(jìn)行對(duì)比，得到了坡角對(duì)圍巖變形的影響規(guī)律。 本文得到了大坡度隧道（巷道）在管片受力、盾構(gòu)推力和圍巖穩(wěn)定性方面隨著埋深與坡角的變化而呈現(xiàn)的規(guī)律，對(duì)相關(guān)基礎(chǔ)理論研究具有一定的借鑒意義，對(duì)施工具有一定的參考價(jià)值。
[Abstract]:In the past, shield tunneling was rarely used in the excavation of large slope tunnels (roadways). In general, traditional methods such as drilling and blasting methods were used in construction. With the rapid development of the country, these methods are no longer able to meet the requirements quickly because of the slow construction speed. Economic large slope tunnel (roadway) construction needs. At the same time, the advantages of shield method, such as safety, efficiency, speed and environmental protection, have been more reflected in the field of construction. It is an inevitable trend to use shield method in the construction of large slope tunnel (roadway). Of course, it can not be denied that because of the low theoretical level and the serious lack of construction experience, there are still many problems to be studied and solved by using shield method in the construction of large slope tunnels (roadways). The stress of segment lining structure and the stability of surrounding rock have great influence on engineering construction, so it is of great significance to study them. Based on the construction project of large slope roadway in Xinjie Taekemiao mining area, this paper discusses the selection of segment parameters of large slope tunnel (roadway), and puts forward the calculation formula of external load and segment force of large slope tunnel (roadway). By using the customary method, the force of shield segment in Xinjie Taegemiao mining area is calculated, and the influence of buried depth on segment force is obtained. Then, the influence of slope angle on the stress of the segment is obtained by comparing the stress of the segment with the increase of slope angle. The calculation formula of shield thrust in large slope tunnel (roadway) is put forward, and the shield thrust in Xinjie Taegemiao mining area is calculated, and the influence of buried depth on shield thrust is obtained. Then the influence of slope angle on shield thrust is compared and summarized. The deformation of surrounding rock around large slope tunnel (roadway) is simulated by FLAC3D, and the deformation of surrounding rock in Xinjie Taekemiao mining area is obtained. By comparing with the deformation of surrounding rock after increasing slope angle, the influence law of slope angle on surrounding rock deformation is obtained. In this paper, the law of large slope tunnel (roadway) with the change of burying depth and slope angle in the aspects of segment force, shield thrust and surrounding rock stability is obtained, which has some reference significance for the research of relevant basic theory. It has certain reference value to the construction.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U455.43

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 黃宏偉,臧小龍;盾構(gòu)隧道縱向變形性態(tài)研究分析[J];地下空間;2002年03期

2 胡如軍,朱偉,季亞平;盾構(gòu)隧道管片設(shè)計(jì)參數(shù)的靈敏度分析[J];地下空間;2003年01期

3 蘇海東;盾構(gòu)法隧洞的平面非線性有限元分析[J];長(zhǎng)江科學(xué)院院報(bào);2000年04期

4 謝小玲,蘇海東;穿黃隧道雙襯砌結(jié)構(gòu)平面非線性有限元分析[J];長(zhǎng)江科學(xué)院院報(bào);2002年S1期

5 丁文其;朱合華;王曉形;蔡永昌;李志厚;;連拱隧道設(shè)計(jì)荷載及其計(jì)算模式研究[J];公路隧道;2006年04期

6 于寧,朱合華;復(fù)雜地層條件下管片設(shè)計(jì)與計(jì)算方法研究[J];工業(yè)建筑;2004年04期

7 鄧維國;申建紅;喬光磊;;西部地區(qū)煤礦建井存在的一些問題思考[J];建井技術(shù);2010年04期

8 吳起星;黃威然;馬宏偉;;盾構(gòu)機(jī)總推力反算滾刀法向破巖力探討[J];暨南大學(xué)學(xué)報(bào)(自然科學(xué)與醫(yī)學(xué)版);2010年05期

9 鞠楊,徐廣泉,謝和平;鋼筋混凝土盾構(gòu)襯砌結(jié)構(gòu)的三維數(shù)值分析[J];計(jì)算力學(xué)學(xué)報(bào);2005年04期

10 秦弦;楊培中;劉濤;金先龍;;盾構(gòu)施工中地表沉降的數(shù)值仿真及影響分析[J];計(jì)算機(jī)仿真;2011年01期

相關(guān)博士學(xué)位論文 前1條

1 管會(huì)生;土壓平衡盾構(gòu)機(jī)關(guān)鍵參數(shù)與力學(xué)行為的計(jì)算模型研究[D];西南交通大學(xué);2008年

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