道洞開挖法 的英文怎麼說
中文拼音 [dàodòngkāiwāfǎ]
道洞開挖法
英文
pilot method of excavation-
The tunneling method for the landslide section at the entrance of heishuigou tunnel ( for the internal circle construction road in the construction site of guandi hydropower station ) is presented herein ; in which the tunneling method and the effects of both the pilot and the system supportings on the entrance tunneling into the landslide body are described as well
摘要介紹了官地水電站場內環線道路黑水河溝隧道進口滑坡體的施工方法，包括開挖的施工方法以及超前與系統支護對在滑坡體上進洞所發揮的作用。Associated with a project of the planned xuefengshan tunnel with 7. 6 km long during the construction of shaoyang to huaihua expressway in hunan province of shanghai to ruili national trunk highway, this paper firstly makes an introduction of the frequently - used analysis & computation methods for tunnel supporting structure. then, based on the analysis of the basic theory about the interaction mechanism of surrounding rock and support structure, a spatial computation model is made, a coupling numerical computation method with 3 - d elastic - plastic finite element and infinite element is proposed, and a comprehensive analysis has been made to the effects of the overall stability and safety of the surrounding rocks of different characteristics, different classes and under different construction methods. and thus the problem of 3 - d infinite region to which applying the general finite ca n ' t do has been resolved
6公里的雪峰山隧道工程，首先介紹了隧道支護結構的常用分析計算方法；然後通過對隧道施工過程中，洞室穩定性與支護結構相互作用機理的深入分析，建立了隧道施工過程的空間計算模型，提出了採用三維彈塑性有限元-無限元耦合的數值計算方法，綜合分析了隧道在不同圍巖特性和圍巖類別條件下，以及不同施工開挖方案等對隧道圍巖整體穩定和安全性的影響，從而解決了通用有限元方法難以解決的隧道三維無限域問題；其可充分發揮有限元法在分析非線性方面的有效性和成熟性，以及無限元法在分析處理無限域和半無限域方面的精確性和簡便性，為隧道施工過程中圍巖的穩定性分析開辟了一條新的途徑。Abstract : in order to provide the reasonable parameters in the reliability analysis of tunnel structure and the criterion in the quality control of tunnel engineering, in this paper, the over - under - excavated values of the real - state outline of tunnel excavation are obtained by the near - field photographic method. by using mathematical statistic method, the figure features and probability distributions of the over - under - excavated values of the surrounding rock, including deferent positions of same cross section, are analyzed
文摘:採用近景攝影的方法，從隧道開挖毛洞中獲取圍巖超欠挖數據，通過數理統計的方法，分析各類圍巖超欠挖的數字特徵及概率分佈，同時得出各類圍巖超欠挖在隧道斷面不同部位的分佈規律，為隧道結構的可靠度研究提供可靠參數，也為隧道工程質量控制提供基準The construction of the multiple - arch tunnel is deeply related to the form of center partition, the tunnel ' s section and excavation method etc. the change regularities of stress field caused by excavation are studied by 4 multiple - arch unlined tunnel model tests. the difference in lining for various multiple - arch sections is analyzed and the mechanics characteristics of center partition is discussed. then, a reasonable construction method for multiple - arch tunnel and a better section are put forward
通過4個連拱模型試驗，研究了連拱毛洞開挖引起的應力場變化規律，對不同的連拱斷面的襯砌受力差異進行了深入的分析，同時對中隔墻的受力特點也作了探討，提出了合理的連拱隧道構築方法及優化斷面圖。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。Based on the numerical simulation, it can be concluded that the three heading construction method with the tunnel close to the mountain tunneled first should be chosen in the construction of the multi - arch loess tunnel
計算結果表明對于偏壓黃土連拱隨道應採用先開挖靠山一側的側壁導洞法進行施工。On the basis of model test, a better construction method under pre - prop for the surrounding rock i, ii, iii, named whole section excavation with heading in moderate degree and that with center heading and center partition first, then with two sides heading, is put forward
在模型試驗的基礎上，提出了、 、類圍巖隧道在預支護下的優化施工方法，即下導洞適度超前全斷面開挖與先行中導洞及中隔墻、其次兩側下導洞適度超前全斷面開挖。分享友人