發(fā)布時(shí)間：2018-04-03 22:50

  本文選題：邊坡穩(wěn)定性　切入點(diǎn)：內(nèi)力計(jì)算　出處：《中國(guó)地質(zhì)大學(xué)(北京)》2015年碩士論文

【摘要】：邊坡穩(wěn)定性分析是工程領(lǐng)域內(nèi)備受關(guān)注的問題,邊坡穩(wěn)定性的力學(xué)作用機(jī)理、設(shè)計(jì)計(jì)算理論多種多樣,于工程實(shí)踐中亦有多。本文結(jié)合北京某工程實(shí)例,采用理論分析和數(shù)值模擬相結(jié)合的方法,對(duì)邊坡穩(wěn)定性和錨固支護(hù)的設(shè)計(jì)計(jì)算理論進(jìn)行研究,研究工作如下:總結(jié)了邊坡穩(wěn)定性分析,抗滑樁內(nèi)力、位移的理論計(jì)算體系與錨索設(shè)計(jì)的計(jì)算理論;研究邊坡穩(wěn)定性的內(nèi)外在影響因素;對(duì)抗滑樁受力性狀進(jìn)行了分析,得出樁身彎矩是呈現(xiàn)先增大后減小的變化規(guī)律。通過實(shí)際工程實(shí)例,系統(tǒng)地分析了巖質(zhì)邊坡的穩(wěn)定性,通過對(duì)邊坡的地層巖性、工程地質(zhì)條件、水文地質(zhì)條件、邊坡巖體質(zhì)量、結(jié)構(gòu)類型分析的基礎(chǔ)上,對(duì)邊坡巖體失穩(wěn)的類型和形成的機(jī)制,邊坡失穩(wěn)影響的外在因素等簡(jiǎn)單的進(jìn)行了探討。通過邊坡穩(wěn)定性的理論計(jì)算,以及抗滑樁和錨索的設(shè)計(jì)理論計(jì)算,提出了工程治理措施�；贛idas GTS軟件對(duì)北京某工程實(shí)例進(jìn)行數(shù)值模擬計(jì)算,建立二維有限元模型,對(duì)項(xiàng)目7號(hào)邊坡支護(hù)前后的應(yīng)力分布變化和位移分布變化做了對(duì)比分析,并詳細(xì)分析了支護(hù)結(jié)構(gòu)的內(nèi)力、應(yīng)力的變化規(guī)律,并將數(shù)值計(jì)算結(jié)果與理論計(jì)算結(jié)果進(jìn)行了對(duì)比分析。
[Abstract]:Slope stability analysis is a problem of great concern in the engineering field. The mechanics mechanism of slope stability, design and calculation theory are various, and there are also many problems in engineering practice.In this paper, the design and calculation theory of slope stability and anchor support is studied by combining theoretical analysis and numerical simulation with an engineering example in Beijing. The research work is as follows: the analysis of slope stability, the internal force of anti-slide pile, and the internal force of anti-slide pile are summarized.The theoretical calculation system of displacement and the calculation theory of anchor cable design; the internal and external influencing factors of slope stability are studied; and the mechanical behavior of anti-slide pile is analyzed. It is concluded that the bending moment of pile body is increased first and then decreased.The stability of rock slope is analyzed systematically by practical engineering examples. Based on the analysis of stratigraphic lithology, engineering geological condition, hydrogeological condition, rock mass quality and structure type of slope,The types and formation mechanism of slope rock mass instability and the external factors affecting slope instability are simply discussed.Through the theoretical calculation of slope stability and the design theory calculation of anti-slide pile and anchor cable, the engineering treatment measures are put forward.Based on the Midas GTS software, the numerical simulation of an engineering case in Beijing is carried out, and a two-dimensional finite element model is established. The stress distribution and displacement distribution before and after slope support of project No. 7 are compared and analyzed.The variation law of internal force and stress of supporting structure is analyzed in detail, and the results of numerical calculation and theoretical calculation are compared and analyzed.
【學(xué)位授予單位】：中國(guó)地質(zhì)大學(xué)(北京)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TU457

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本文編號(hào)：1707274