tunnel-wall effect 中文意思是什麼
tunnel-wall effect
解釋
風洞壁影響-
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。 -
It saves several columns of calculating in the work-up since tunnel wall effect on the horizontal tail is then nonexistent.
因為這時不存在洞壁對平尾的影響，所以數據處理工作量減小了。 -
What ’ s more, this paper takes the effect of crown wall rock and mid - board foundation reinforced parametric variation on tunnel structure stress and stability into account grounded on building typical section model of i wall - rock sector
另外，本文還通過建立類圍巖地段隧道典型斷面模型，分別考慮拱頂圍巖和中墻地基加固參數的變化對隧道結構受力和穩定性的影響。 -
The primary contents are as follows : 1. according to the feature and the theory of shield tunnel construction, based on the factors that cause effects on environment, the workable monitoring project is established, which include principles of design, the selection of monitoring cross section, the layout of monitoring points, monitoring content and materials feedback. such as operation program, selection of earth pressure, wall - back grouting, rectification of shield machine, which are used to reduce the effect of construction on environment, are analyzed in detail
完成的主要研究內容如下： 1 、根據盾構法的施工特點及原理，在明確了盾構施工安全影響因素的基礎上，從監測方案設計原則、監測斷面的選擇、監測點的布置、監測內容以及信息反饋等出發，提出行之有效的監測方案；詳細分析了掘進模式、土壓力選擇、壁后注漿、盾構糾偏等施工控制手段，用來減小盾構施工對周邊環境的影響。 -
Construction of flat tunnel of large span at extra - shallow depth must be conducted on the principle that advance grouting should be strictly performed before excavation and length of pull at one time should be short, together with reinforced support, immediate closing and constant monitoring and surveying. that preceding pilot tunnels, large - volume excavation divided into small ones, excavation of flank before that of center, upper before lower, arch before wall etc is a good method which could effectively reduce surface subsidence and its adverse effect on adjacent buildings, in addition, some other measures are also taken to lessen blast - induced vibration in the ground and surrounding structures. in a word, all means and steps mentioned above have already proved effective and practicable in practice
軟弱大跨超淺埋扁平隧道必須按「管超前，嚴注漿，多分部、短開挖、強支護、快封閉，勤量測」的施工原則進行施工，採用「眼鏡超前，化大為小，先側后中，先上後下，先拱后墻」的施工方法控制地表沉降和對周邊建築物的影響；採用「多分部，化大為小，短進尺，密布眼，弱裝藥，設減振槽」 ，控制爆破振動，經過實踐證明，這些方法都是行之有效的。 -
Then we simulate the common excavating methods of double - arc tunnel respectively, analyze the stress and strain of wall rock and support structure of each method, and recommend the best excavating method to construct double - arc tunnel in wall rocks of ii. then we analyze the " three headings method " in detail, and also simulate the effect of construction factor, stress releasing coefficient and secondary lining
對實際工程中最常用的三種開挖方法分別進行了施工模擬，分析了它們各自的圍巖和支護的受力變形規律，經比較后，得出了三導洞法是類圍巖中修建連拱隧道的較好開挖方法的結論。 -
To take an actual example, the triple pipe method has been adopted to consolidate the surrounding soil by rotary shot grouting pile and swaying shot diaphragm wall in the construction of vertical shaft and access drift of running tunnel from martyr ' s park to dong shan kou station in no. l line of guangzhou metro. it turns out that this method has met the double effect of both construction support and waterproof
作為施工實例，在廣州地鐵一號線烈士陵園至東山口區間隧道的豎井及聯絡通道施工中，採用三重管法對周圍地層實施了旋噴樁和擺噴墻加固，達到了施工支護和防水止滲的雙重效果。
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