模塑后應力 的英文怎麼說
中文拼音 [mósùhòuyīnglì]
模塑后應力
英文
after-mold stress-
Fist of all, on the basis of the research of agone boffins, this author investigates the interaction mechanism of bolts and rock, and introduces the elastic ? lastic analytical resolution which is consist of the liner structure, the equivalent reinforced wall rock and the original wall rock in the simple loading from the equivalent well - proportioned view ; this solution is very important meaning for the engineering design. on the basis of coulomb friction model, the author introduces the finite element equation of the contact problem in order to provide the academic foundation for the application of msc. marc. finally, combining the engineering practice of the non - linear analysis of shield tunnel through yellow river of the south - north water transfer and using the model of friction, the author researched the evolution law of stress and displacement field in the structure of grouted rock bolts, and analyzed the effect to the stress and deformation of surrounding rock mass due to anchor supports
首先，在前人研究成果的基礎上，對錨桿與圍巖的相互作用機理進行研究，利用全長錨固錨桿的中性點理論，從等效均化的角度來考慮錨桿對圍巖的加固作用，並推導了在簡單荷載作用下，含有襯砌、等效加固后的圍巖、原始圍巖三者的彈塑性解析解，對工程設計有著重要的參考意義；在數值模擬方面，以考慮錨固圍巖滿足規則化庫侖摩擦模型為基礎，利用虛功原理推導了接觸問題的有限元方程的計算格式，為開發運用大型商用有限元軟體msc . marc提供了理論根據，也形成了本文的理論基礎：最後，論文以南水北調東線穿黃隧洞穩定性分析項目為工程實例，利用本文所述的接觸問題的摩擦模型理論，對錨桿支護結構的應力場、位移場的變化規律進行了研究，分析了加錨支護對隧洞圍巖應力、變形的影響。Relating closely to the main problem of the high sidewall and wide span underground cavities excavation stability of xiluodu hydroelectric project, the evolution characters of geo - stress field in deep - cutting gorge and the whole features of the stress field, strain field and plastic failure zone around the underground chambers after excavation are studied systematically in the dissertation, based on a great deal of data gathered in field investigation and taking the flac3d v2. 0 software as basic computation tools. meanwhile, in the course of research, the new methods of dynamic numerical simulation are summarized and applied. furthermore, the effects of rock mass qualities, initial geo - stress field and excavation procedure on surrounding rock mass stability are discussed
本文緊密結合溪洛渡水電工程大跨度、高邊墻復雜地下廠房洞室群，施工開挖過程中和開挖后圍巖穩定性研究這一重大課題，在詳盡的野外地質調查工作和對大量基礎地質資料的整理與分析基礎上，以目前國際工程地質界公認的最新通用軟體flac ~ （ 3d ） 2 . 0版作為基本計算工具，從整個壩區地應力場的研究開始，通過動態數值模擬分析這一新的模擬思路，系統地研究了深切峽谷區地應力場多階段的特徵和演變規律，進而對左、右岸地下廠房洞室群開挖全過程中圍巖應力場、變形場和塑性破壞區的變化特徵，進行了全過程動態數值模擬研究，並詳細討論了圍巖質量、初始地應力場、施工開挖順序對大型地下洞室群圍巖穩定性的影響。Through the simulation of the forming process, we can get the deformations, stress, strain, plastic flowing in sheets and the interface state under impact load and rolling load, the deformation of the sawtooth form and comparing to the initial state, the results above are expressed in computer animated way. and the effect of geometrical ( mainly different form, including 90 degree, isoceles triangle ， 75 degree, and 1. 5 high and wide ), material and technical parameters on the bond strength are analyzed, also including the comparison of different sawtooth form. the optimum parameters are got
對雙金屬復合板成型過程進行模擬，從而得到在沖擊載荷和軋輥壓力作用下基板和覆板的應力、應變分佈和塑性流動變形規律，復合后的齒形的變形情況與初始齒形形成對比，以動畫的方式模擬成型過程，並分析了不同幾何參數（主要是不同的齒型，其中包括直角齒型、等腰齒型、 75度齒型、 1 . 5高寬齒型） 、材料參數、工藝參數對復合強度的影響，以及不同齒型的變形對比以及齒型對復合情況的影響，提出最優齒型、最優工藝參數，有效地指導了實驗。To be the wall material of gtdw, comparing with the conventional concrete diaphragm wall, plastic concrete has a much lower elastomeric modulus that approaches to that of the around soil. as a result, the deformation of the plastic concrete diaphragm wall under pressure will be similar with that of the around stratums. the stress state of the iii diaphragm wall is greatly improved and thus improvement will make it easy for the diaphragm wall to fit the stress changes by the thinner of wall or the frequent changes of the water level
塑性混凝土作為抓鬥薄墻的墻體材料，相比于普通混凝土彈性模量顯著降低，使其更接近於圍土材料的變形模量，所以塑性混凝土防滲墻在其受力后的變形能很好地于周圍地層相協調，因而能大大改善防滲墻的應力狀況，更好地適應墻體變薄及長江水位頻繁變化而帶來的應力變化。At last, the analysis of the redistribution of the initial crust stress and the distribution of the plastic area is made ; the stability evaluation of the rock mass around the cavern is provided. the outcome is conformed with the reality. then applys the approximately equivalent dissolved rule, and considers the action of anchor staff to consolidate the rock mass, and correspond model is established, nonlinear finite element m ethod is applied to analyze the effect of the supports, the result shows that the action of anchor staff is obvious and deformation and stress state of the rock mass is greatly approved. so, the result conforms that the idea and the means used in the thesis is applicable
最後運用非線性有限元對廠房開挖后圍巖的應力重分佈和塑性開展區的分佈作了分析，評價了廠房的圍巖穩定性，其結果與實際開挖情況基本吻合，針對圍巖穩定性評價的結果，提出了錨固方案，運用等效概化原理考慮錨桿的作用，建立了採用系統錨桿加固后的地下廠房圍巖的三維彈塑性模型，運用非線性有限元分析了加固效果，結果表明錨固作用明顯，圍巖變形明顯減小，圍巖內的應力狀態大為改善，從而驗證了本文所採用的研究思想和方法是切實可行性的。Then a dynamic visualization software - - afterdraw, which aims at 2d elastic - plastic fem, is programmed. afterdraw is capable of drawing the deformation figures of material, the regions of plasticity and the regions of tension distributing figures, primary stress vector figures and primary strain vector figures. besides, atterdraw could realistically dynamically simulate the deformation of the whole process of construction
在此基礎上，研究了針對二維彈塑性有限元的動態可視化后處理軟體afterdraw ， afterdraw能夠繪制基坑工程各步施工的結構變形圖、塑性區和受拉破壞區分布圖、主應力矢量圖和位移矢量圖， afterdraw還能夠逼真地動念模擬基坑工程整個施工過程變形情況。分享友人