本文選題：育王嶺隧道 + 監(jiān)控量測(cè)�。� 參考：《湖南科技大學(xué)》2015年碩士論文

【摘要】：隨著近年來,國(guó)家經(jīng)濟(jì)越來越發(fā)達(dá),國(guó)家對(duì)交通建筑行業(yè)投資也越來越大,城市輕軌建設(shè)為民生、經(jīng)濟(jì)和交通運(yùn)營(yíng)帶來了極大便利。本文結(jié)合寧波輕軌育王嶺隧道項(xiàng)目的工程實(shí)踐進(jìn)行研究,隧道位于329國(guó)道瓔珞村南側(cè),隧道長(zhǎng)1380m,為北侖區(qū)和鄞州區(qū)的交界處。北侖鐵路貨運(yùn)支線緊挨通過,旁邊有浙江著名古寺阿育王寺,本文主要以隧道圍巖穩(wěn)定性分析與評(píng)價(jià)為主,以保證施工質(zhì)量和洞體安全穩(wěn)定為核心,采用監(jiān)測(cè)變形分析等手段,對(duì)隧道圍巖穩(wěn)定性進(jìn)行分析。論文通過對(duì)隧址區(qū)工程地質(zhì)條件分析判定圍巖等級(jí),定性評(píng)價(jià)圍巖的穩(wěn)定性,實(shí)時(shí)掌握監(jiān)控量測(cè)數(shù)據(jù),對(duì)圍巖變形進(jìn)行評(píng)估和預(yù)測(cè),再利用數(shù)值模擬方法分析洞體施工對(duì)圍巖應(yīng)力應(yīng)變場(chǎng)的影響,對(duì)隧道圍巖變形破壞機(jī)制進(jìn)行研究。從不同等級(jí)圍巖變形的監(jiān)測(cè)數(shù)據(jù)與數(shù)值模擬結(jié)果進(jìn)行比較,可反饋設(shè)計(jì)和施工,對(duì)隧道建設(shè)積累一定的工程經(jīng)驗(yàn)并最終評(píng)價(jià)圍巖穩(wěn)定性。論文工作主要涵蓋了以下內(nèi)容:首先,詳細(xì)分析了育王嶺隧道的工程地質(zhì)條件,包括區(qū)域地質(zhì)構(gòu)造、區(qū)域地震、區(qū)域地層巖性等。隧址區(qū)地質(zhì)條件包括地層巖性、地質(zhì)構(gòu)造、水文地質(zhì)條件、不良地質(zhì)現(xiàn)象等。對(duì)隧址區(qū)圍巖的特征進(jìn)行定性分析,根據(jù)圍巖分級(jí)劃分依據(jù),劃分各地段的圍巖分級(jí),不同級(jí)別的圍巖有著不同的變形破壞特征,結(jié)合以上資料,對(duì)洞身圍巖和出洞口以及進(jìn)洞口邊坡進(jìn)行了圍巖穩(wěn)定性評(píng)價(jià)。其次,為防止隧道洞體塌方和圍巖出現(xiàn)較大變形,影響工程質(zhì)量和進(jìn)度并對(duì)現(xiàn)場(chǎng)工作人員帶來一定的危害,需要實(shí)施監(jiān)控量測(cè)工作,主要監(jiān)控進(jìn)出洞口地表沉降、洞身拱頂沉降與周邊收斂等,通過現(xiàn)場(chǎng)一年多量測(cè)施工得到圍巖變形的數(shù)據(jù),得出施工過程中圍巖應(yīng)力應(yīng)變規(guī)律,在符合有關(guān)標(biāo)準(zhǔn)下,結(jié)合設(shè)計(jì)、施工和監(jiān)測(cè)方案對(duì)圍巖破碎、穩(wěn)定性差地段進(jìn)行重點(diǎn)監(jiān)測(cè),選取若干不同圍巖等級(jí)斷面根據(jù)監(jiān)測(cè)成果分析圍巖穩(wěn)定性。最后,本文選取育王嶺隧道出口圍巖較破碎地段進(jìn)行隧道圍巖變形的數(shù)值模擬,建立起隧道三維工程地質(zhì)模型,選取相關(guān)參數(shù)運(yùn)用計(jì)算軟件FLAC3D對(duì)隧道開挖支護(hù)前后的圍巖應(yīng)力應(yīng)變場(chǎng)的特征進(jìn)行研究,再結(jié)合監(jiān)測(cè)數(shù)據(jù)結(jié)果進(jìn)行對(duì)比分析,可反饋和指導(dǎo)施工,對(duì)正確評(píng)價(jià)隧道圍巖穩(wěn)定性有著深刻意義。論文研究成果將為隧道設(shè)計(jì)跟施工帶來工程借鑒與經(jīng)驗(yàn)。
[Abstract]:In recent years, the national economy is more and more developed, the state of traffic construction investment is also growing, city rail construction for the people's livelihood, economy and transportation has brought great convenience. Combining with the engineering practice of Ningbo light rail tunnel project of Yu Wang Ling tunnel, located on the south side of state Road 329 Ying Luo village, the length of the tunnel is 1380m, for at the junction of Beilun and Yinzhou District. Beilun railway freight line next to pass, next to the famous Zhejiang Temple Ashoka temple, based mainly on the analysis and evaluation of the stability of tunnel surrounding rock, in order to ensure construction quality and safety and stability of tunnel body as the core, the deformation monitoring methods on the stability of tunnel surrounding rock based on the analysis. The engineering geological conditions of tunnel surrounding rock stability analysis to determine the level of qualitative evaluation of surrounding rock, real-time monitoring data, the deformation of surrounding rock in evaluation and prediction Then, the numerical analysis of cave construction stress field of surrounding rock simulation, deformation and failure mechanism of the surrounding rock of the tunnel. From the comparison of monitoring data and numerical simulation of different grades of surrounding rock deformation results, the feedback of design and construction, accumulated certain experience in engineering construction on the tunnel and surrounding rock stability evaluation. The main work of the paper includes the following contents: firstly, a detailed analysis of the engineering geological conditions of Yu Wang Ling tunnel, including regional geological structure, earthquake, regional lithology. Tunnel geological conditions including lithology, geological structure, hydrogeological condition, bad geological phenomenon. The characteristics of the surrounding rock tunnel site the qualitative analysis, according to the basis of classification of surrounding rock, the division of rock classification of various sections of the surrounding rock, different levels have different deformation characteristics, combined with the above information, the hole around the body Out of the hole and the hole and rock slope of rock stability evaluation. Secondly, in order to prevent tunnel collapse and rock large deformation, bring harm to affect the project quality and schedule and personnel on site, needs the implementation of monitoring and measurement work, the main entrance and exit for monitoring surface subsidence, vault settlement and convergence of surrounding tunnel more than a year, through on-site measurement of construction rock deformation data, the surrounding rock in the construction process of stress and strain law, combining with the design in accordance with the relevant standards, and the construction and monitoring scheme of surrounding rock is broken, poor stability and lots of key monitoring, choose several different sections according to the stability analysis of the surrounding rock grade finally monitoring results. In this paper, Yu Wang Ling tunnel surrounding rock is broken in the numerical simulation of tunnel surrounding rock deformation, establish three-dimensional tunnel engineering geological model selection The relevant parameters using the feature of tunnel excavation and surrounding rock stress and strain field calculating software FLAC3D to conduct the research, combined with the monitoring data were analyzed, the feedback and guidance of construction, has a profound significance to the correct evaluation of the stability of tunnel surrounding rock. The research results will bring reference and experience for engineering design and construction of tunnel.

【學(xué)位授予單位】：湖南科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U456.3

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本文編號(hào)：1764882