本文關(guān)鍵詞： 邊坡 穩(wěn)定性 數(shù)值模擬 支護(hù) ANSYS　出處：《河北聯(lián)合大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：21世紀(jì)的今天，人們對地下空間的利用不斷激增，深基坑工程的規(guī)模不斷向更深、更大的方向的發(fā)展，在開挖基坑過程中必然會引起土層的位移變形。因此研究基坑在開挖過程中土體的變形及土體與支護(hù)結(jié)構(gòu)的穩(wěn)定性已經(jīng)成了至關(guān)重要的問題，對預(yù)測基坑開挖可能造成的影響具有十分重要的意義。 系統(tǒng)介紹了常用的基坑支護(hù)方法及一般使用范圍，分析了基坑工程中常用的土壓力方法，介紹了大型巖土工程有限元分析軟件ANSYS，并以唐山時(shí)代廣場基坑工程實(shí)例為背景，在基坑開挖過程中，利用ANSYS，建立了唐山時(shí)代廣場基坑開挖與支護(hù)工程的有限元分析模型。采用軟件的Druck-Prager本構(gòu)模型對土體進(jìn)行模擬分析，同時(shí)設(shè)置了六個(gè)開挖工況，來模擬與分析基坑的真實(shí)開挖和支護(hù)的全過程，分析基坑開挖過程中基坑側(cè)壁土體應(yīng)力，，水平位移，剪切應(yīng)力以及圍護(hù)樁錨軸力的變化。 通過分析，總結(jié)出基坑開挖和支護(hù)的過程中，基坑支護(hù)結(jié)構(gòu)受力以及基坑側(cè)壁土體水平位移的一般規(guī)律，為今后相類似基坑工程設(shè)計(jì)、施工及支護(hù)提供了一定的指導(dǎo)意義。
[Abstract]:In twenty-first Century, people's use of the underground space continues to surge, deep foundation pit engineering scale becomes deeper and deeper, more development direction, in the excavation process will cause soil displacement. Therefore study on excavation deformation of the soil and the soil and supporting structure stability has become a crucial the problem has very important significance to predict the effect of pit excavation may cause.
The system introduces the common foundation pit supporting method and the general scope of use, the analysis of soil pressure method commonly used in foundation pit engineering, introduces the finite element analysis software of geotechnical engineering, ANSYS, and the Tangshan Times Square excavation project as the background, the use of ANSYS in the excavation process, and the establishment of the Tangshan Times Square excavation finite element analysis and support engineering model. Using Druck-Prager software to simulate and analyze the soil constitutive model, and set up six excavation conditions to simulate and analysis the real foundation excavation and support of the entire process, analysis of foundation pit excavation wall soil stress, horizontal displacement, change of shear the stress and the axial force of the anchor pile.
Through analysis, the general rule of foundation pit supporting structure and horizontal displacement of foundation pit side wall during excavation and supporting is summarized, which provides a guiding significance for similar foundation pit engineering design, construction and support in the future.

【學(xué)位授予單位】：河北聯(lián)合大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TU473.2

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 熊孝波;桂國慶;鄭明新;許建聰;;基于ANSYS的深基坑圍護(hù)結(jié)構(gòu)變形數(shù)值模擬分析[J];地下空間與工程學(xué)報(bào);2009年S1期

相關(guān)碩士學(xué)位論文 前1條

1 曹杰;深基坑樁錨支護(hù)結(jié)構(gòu)數(shù)值模擬及分析[D];河北工程大學(xué);2011年

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