本文選題：緩傾順層巖質(zhì)邊坡 + 變形機(jī)制��； 參考：《重慶大學(xué)》2014年碩士論文

【摘要】：隨著城鎮(zhèn)化建設(shè)以及西部大開發(fā)戰(zhàn)略的推進(jìn)，催生了大量的工程建設(shè)。由于我國是多山的國家，巖質(zhì)邊坡工程的數(shù)量和規(guī)模相應(yīng)增多。調(diào)查表明較多的順層巖質(zhì)邊坡在開挖后，如無及時正確的防護(hù)措施，則邊坡發(fā)生破壞的可能性大大增加。當(dāng)前專門針對緩傾順層巖質(zhì)邊坡的研究比較少，深入研究緩傾順層巖質(zhì)邊坡的變形機(jī)制及其防治措施顯得尤為重要。本文結(jié)合實際工程采用理論分析和數(shù)值模擬，對緩傾順層巖質(zhì)邊坡的變形機(jī)制進(jìn)行研究，在此基礎(chǔ)上提出合理的支護(hù)措施，，并進(jìn)行實際監(jiān)測分析。論文主要進(jìn)行的工作如下: ①對緩傾順層巖質(zhì)邊坡變形破壞機(jī)制、主要分析方法以及防治措施的研究現(xiàn)狀進(jìn)行較為完整的文獻(xiàn)綜述，并在此基礎(chǔ)上提出本文的主要研究內(nèi)容以及技術(shù)路線。 ②通過理論分析得出緩傾順層巖質(zhì)邊坡變形破壞的機(jī)理，對緩傾順層巖質(zhì)邊坡進(jìn)行受力計算分析，在此基礎(chǔ)上推導(dǎo)邊坡變形破壞的開挖松動區(qū)范圍。系統(tǒng)研究了影響緩傾順層巖質(zhì)邊坡穩(wěn)定性的因素以及軟弱結(jié)構(gòu)面對邊坡變形破壞的主導(dǎo)作用。 ③利用ANSYS有限元軟件以實際工程中的緩傾順層巖質(zhì)邊坡為例建立數(shù)值模型。分析該邊坡的變形破壞模式及其演變過程，將數(shù)值計算結(jié)果與理論分析進(jìn)行比較和分析后得出緩傾順層巖質(zhì)邊坡的變形破壞機(jī)制。 ④總結(jié)目前常見的緩傾順層巖質(zhì)邊坡的防治措施，結(jié)合本文實際工程的特點提出對拉錨索的支護(hù)形式，以及“雙控法”的施工工藝，并進(jìn)行長期的現(xiàn)場監(jiān)測，根據(jù)監(jiān)測的結(jié)果分析防治措施的效果，并總結(jié)相關(guān)結(jié)論。 綜上所述，本文理論研究的結(jié)果和數(shù)值模擬反映的規(guī)律基本一致。運用理論研究和數(shù)值模擬的相關(guān)結(jié)論于實際的工程。長期的現(xiàn)場監(jiān)測反映了已實施工程的效果。本文的研究成果對相似工程的設(shè)計和施工具備一定參考價值。
[Abstract]:With the development of urbanization and western development strategy, a large number of engineering projects have been spawned. As China is a mountainous country, the quantity and scale of rock slope engineering increase correspondingly. The investigation shows that if more bedding rock slopes are excavated without timely and correct protective measures, the possibility of slope failure will be greatly increased. At present, there are few researches on the rock slope of gently inclined bedding, so it is very important to study the deformation mechanism and prevention measures of the rock slope. In this paper, theoretical analysis and numerical simulation are used to study the deformation mechanism of rock slope of gently inclined bedding, on the basis of which reasonable supporting measures are put forward and actual monitoring analysis is carried out. The main work of this paper is as follows: 1 A complete literature review is made on the mechanism of deformation and failure, the main analysis methods and the prevention measures of gently inclined bedding rock slope. On this basis, the main research contents and technical route of this paper are put forward. (2) through theoretical analysis, the deformation and failure mechanism of gently inclined bedding rock slope is obtained, and the stress calculation of gently inclined bedding rock slope is carried out. On this basis, the range of excavation loosening zone of slope deformation and failure is deduced. The factors affecting the stability of gently inclined bedding rock slope and the dominant role of weak structure in the face of slope deformation and failure are studied systematically. 3 using ANSYS finite element software, the rock slope of gently inclined bedding is used in practical engineering. A numerical model is established with an example. The deformation and failure mode and its evolution process of the slope are analyzed. By comparing and analyzing the numerical results with the theoretical analysis, the deformation and failure mechanism of the rock slope with gently inclined bedding is obtained. 4 the prevention and cure measures of the rock slope of the gently inclined bedding are summarized. Combined with the characteristics of the actual project in this paper, the supporting form of the anchor cable and the construction technology of the "double control method" are put forward, and the long-term field monitoring is carried out. According to the monitoring results, the effect of the preventive measures is analyzed, and the relevant conclusions are summarized. In conclusion, the theoretical results of this paper are basically consistent with the laws reflected by numerical simulation. The relevant conclusions of theoretical research and numerical simulation are used in practical engineering. Long-term field monitoring reflects the effect of the project. The research results of this paper have certain reference value for the design and construction of similar engineering.
【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】：TU457

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本文編號：2010856