field excavation 中文意思是什麼

field excavation 解釋
田野發掘
  • field : n 菲爾德〈姓氏〉。n 1 原野，曠野；（海、空、冰雪等的）茫茫一片。2 田地，牧場；割草場；〈pl 〉〈集...
  • excavation : n. 1. 開鑿；發掘；挖掘；挖土，剜通。2. 穴，洞；坑道，開鑿成的山路。3. 【考古】出土文物，發掘物。
  1. This thesis tries to solve the problems in the design and construction of jinping cascade 2 hydropower station. a typical section is selected to analysis seepage, seepage control and fem numerical simulation. the influence of different plans of excavation and support on seepage field of subsurface water and stability of adjoining rock are studied. the homologous support pattern is suggested according to the research results

    本文就錦屏二級水電站（一期）深埋長隧洞的設計和施工中面臨的一些問題，選取隧洞的一個典型斷面進行滲流、滲控分析和開挖及支護的有限元數值模擬，從而就深埋隧洞不同的開挖及支護方式對地下水滲流場及圍巖穩定性的影響和所應採取的支護措施等方面進行了探索、研究。
  2. Alex is a man of principles and a scholar in archaeology. as a late - comer to the team, i was eager to join field excursions, whether they may be an archaeological excavation on sha chou island or ethnographical collection trips to remote villages

    作為最後歸隊的一員，我常參與田野考古工作，不論是鼓灘外沙洲島的考古發掘，或是到偏遠鄉村的探訪收集工作，我都爭取機會學習。
  3. Excavation of tunnel will lead to local geotectonic stress release and redistribution around tunnel ; the appearance of new outlet boundary will lead to outlet seepage of subsurface water and the change of mountain seepage field

    隧洞開挖將引起局部地應力的釋放及洞周附近的地應力的重新分佈；隧洞開挖后新的出水邊界的出現將導致地下水的大量出滲及山體滲流場的改變。
  4. Through tracing the change of the stress on the horizontal and slantwise paths, the influence and scopes of the excavation effect on the inside stress field of the slope are put forward

    通過對水平和傾斜路徑的應力追蹤，提出了開挖效應對邊坡內部應力場的影響程度和范圍。
  5. And combining with compound analysis, this thesis has calculated and estimated the deformation and stability of slopes of the cliff debris and residual soil slope project on the project site at k15 + 183 of yong ' an section of yong - zhang highway ; ( 3 ) in the course of the cut slope excavation inner displacement has been in control of real time field monitoring

    同時邊坡開挖後期坡頂會出現回彈現象。 3 、數值計算成果表明，隨著開挖階數的增加，大小主應力在邊坡內也進行不斷的調整。邊坡開挖后坡腳處大小主應力值nlfep程序結果與ansys計算結果較為相似，兩者吻合性較好。
  6. 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。
  7. In order to make the best use of explosive energy in loosing soil or throwing it onto some area and ensuring the bottom meet some leveling requirements after blasting, a plane charge layout is often adopted according to blasting design and engineering quality requirements in open chamber blasting such as mine exploitation, field leveling and foundation pit excavation of construction

    摘要在礦山剝離、場地平整以及建（構）築物基坑開挖等露天爆破中，為了充分利用炸藥能量將巖石松動或拋擲到一定區域，並確保底板滿足一定平整度要求，按照爆破技術設計和工程質量要求，需要設計平面布藥結構。
  8. This paper discusses some problems found during the field excavation and detection of underground liquid gas tanks with anti - corrosive protection used for 3 years. some countermeasure are proposed

    摘要地下液化氣儲罐防腐蝕措施實施3年後，對現場挖掘和測試檢查中發現的幾個陰極保護中的問題進行分，並提出解決的辦法。
  9. Tensile stress field would appear in the proximity of arched vault after excavation, slacking of surrounding rock and subsequent dropping of blocks of rock from such area would possibly occur at any time in the context of extra - shallow depth. so i - steel arched support must be erected to provide against possible block dropping and be integrated into a ring with that of pilot tunnels on both sides

    拱頂在核心土開挖后，在一定范圍內出現拉應力區，在超淺埋情況下極容易掉塊和發生圍巖松馳，因此核心土必須邊開挖邊架設工字鋼拱架，使之與左右導洞拱頂工字鋼形成整體。
  10. Combining achievements in past scientific research, this thesis summarizes some problems in the process of decreasing water, the problems contains : important parameters such as percolation coefficient, interfering radius etc ; designers get parameters from their experience and make their choice of limited prospecting materials too simply, because of the limits, designer ca n ' t make quantitative analysis on groundwater ; differences on breakwater effect of setting water - tight screen is still existed, although research evolvement in this field is done ; they ca n ' t grasp the hydrogeology parameters accurately in that it influences rightness of designing in deep excavation water - decreasing

    本文結合以往的研究成果，總結了降水過程中存在的一些問題，主要包括：重要設計參數，如地層滲透性、基坑降水影響半徑等，設計中僅從個人經驗出發取值，對有限的勘探資料進行取捨和過分地簡化。這些局限使設計者不能對地下水進行科學的定量分析，盲目性較大；深基坑降低承壓水引起的周邊地面沉降的研究雖已取得很大的進展，但是一些主要問題仍未解決，對防滲帷幕的實際擋水效果存在不同看法；對於弱透水層的水文地質參數一直難以準確把握，影響了深基坑降水設計的正確性。
  11. In the simulation and analysis on culvert construction, the method of foundation - pit excavation layer by layer and step by step was used, i. e. the method that makes the surface of excavation have no stress, when the elements were excavated gradually in period of construction. at this process, the state of soil is unloading, the laws of stress field and displacement field with the depth of excavation were studied. based on the obtained stress field and displacement field after the excavation was completed, by using of the newly increased filling - elements " gravity and the grinding force, the simulation of the construction of body of the culvert and foundation - pit ' s filling layer by layer had also been done in this dissertation

    用有限元法模擬分析涵洞基坑開挖時，採用分層、分步模擬開挖過程的方法，即將計算域內單元分層「挖去」 ，使開挖表面成為無應力表面的方法，分析土體在卸載狀態時的應力場和位移場隨開挖深度的變化規律；在洞體施工后，回填土體時，據開挖完成時的應力場、位移場，通過逐級增加計算域內的單元數目，施加每級新增加單元的自重荷載，利用有限元法模擬基坑及上覆土體分層填築的施工過程，這不僅反映土體處于再加載應力狀態時，填土受力及變形的一般規律，而且這種將地基? ?涵洞? ?土體作為一個統一整體進行模擬的方法，量化了三者之間的相互作用關系。
  12. 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
  13. Through the excel program, and combining the inside and outside environment of the excavation and stress field and displace field, the data of stress and displacement of points are analyzed in variable depth and load grade and terminal state. the spss software has been applied to the statistics of geometry parameter of failure surface, and the failure surface criterion is created by the linearity regression from d ( the longest horizontal distance between the failure surface and the side face of the slope ), ho ( the depth

    此外，應用spss軟體對試驗破壞滑弧的幾何參數進行統計分析，並對滑弧的最大水平深入距離d及d處至坑底的高度h _ 0結合各水理指標進行多元線性回歸，建立滑面的判據，並對此判據進行修正，且用實際工程對其進行評價，通過反算已知滑面的c 、值，表明邊界條件對破壞形式有極大的干擾作用，所直接看到的破壞類型土體不是發生整體滑移破壞，而是剝落式的潰屈破壞。
  14. Based on the simplified structure of rock mass, three - dimensional finite element numerical modeling technique is used to analyze systematically the distribution features of filed, strain field and plastic zone in the surrounding rock mass of the underground cavities after the excavation

    在巖體結構模型概化的基礎上，采有三維有限元數值分析方法，系統研究了大跨度、高邊墻地下洞室群開挖完成後圍巖的二次應力場、變形場和塑性破壞區的變化特徵。
  15. With the rapidly development of minefield and the rapidly increase of coal output, the excavation scope and depth will extremely rise, the excavation work is under the overlying by the thin rock strata, and under the thick loose bed, the population in mine field will be more and more, the relevant basic industries will also develop rapidly. the mines will discharge more water from the underground, and the production and living will also consume more water. so the original water resource balance system in the minefield will be broken, the ecological environment formed by the nature will be destroyed in some degree

    隨著礦區迅速發展而煤炭產量的快速增長，既定在薄基巖厚鬆散層下的神東煤田開采范圍和深度勢必急劇增大，相應的人口也增加，與其相匹配的其它基礎工業一併迅猛發展，導致礦井外排水和生產生活用水直線猛增，這一系列生產和生活巨量用水必然會打破礦區原始的水資源平衡體系，不同程度的破壞自然形成的脆弱的生態環境。
  16. By simulating the excavation course of foundation pits and starting with the change of stress field, the regularities of remanent strength and static earth pressure of viscous soil mass under excavated plane are analyzed so that the influence depth due to soil mass excavation unloading may be determined

    摘要模擬基坑開挖過程，由應力場變化方面入手分析開挖面以下粘性土體殘余強度和靜止土壓力的規律性，以期確定土體開挖卸荷的影響深度。
  17. Furthermore, with the formulas as basis, a practical case of excavation was analyzed, and the obtained results were compared with the field measurements

    進而利用本文公式對實際基坑降水工程進行了計算與比較分析，同時還提出了減小降水對周圍環境危害的措施。
  18. Based on analysis of the characteristics of the composite soil nailed wall, simulating the soil nail, concrete layer, deep mixing pile and step excavation, a model is established to calculate the deformation of the wall, compiled simple and applied program of one dimension fem ; according to the field test data and the calculated data by the fem software this paper has developed, the design method and deformation of the wall in xi ' an area is discussed. the shape of destructive sliding surface of the wall in loess strata in xi ' an area with deep groundwater is gotten. finally the lateral deformation distribution and the experiential formula to predict maximal horizontal displacement of the composite soil nailed wall are given

    針對復合土釘墻構造的特點，建立了模擬復合土釘墻受力變形的一種計算模型，該計算模型可對土釘、面層、深層攪拌樁以及分層開挖等進行簡化模擬；編寫了簡單實用的桿系有限元程序；結合工程實測資料及有限元法分析的結果，探討了西安地區的土釘設計以及復合土釘墻的變形規律，得出了西安地區一般黃土在無地下水時的破壞滑動面形狀，復合土釘墻的側向變形曲線以及計算復合土釘墻最大水平位移的經驗公式。
  19. With concluding construction methods of composite soil nailing, and analysing the field measurements curves for two excavation engineering in soft layers, it is proved that using composite soil nailing in shallow foundation excavations is possible, at the same time groundwater should be treated carefully and deformations of the excavations should be controlled strictly

    通過對兩個軟弱地層中復合土釘支護的基坑工程施工技術的總結及其變形測試數據的分析，說明在軟弱地層的淺基坑工程中應用復合土釘支護技術是可行的，但須認真治水及控制基坑變形。
  20. There are series of excavation shapes experiment and full - field explosion experiment based on the excavation shapes experiment. the pentagon excavation, diamond excavation and spiral excavation are applied in the sandrock tunnel excavation. the analysis of experimental data and the results of experiment proved that the three excavation are apt to use in sandrock tunnel excavation, and the result of explosion is very well and the explosion rate is up to 90 %

    對于砂巖巷道進行了五星掏槽、菱形掏槽、螺旋掏槽，通過爆破實驗數據和爆破結果分析，得到了在砂巖中採用上述三種掏槽形式爆破效果良好，爆破率相對較高；同時，上述三種掏槽方式及其它技術經濟指標，如爆出實體巖石體積等也較好，爆破效率達到90 %以上。
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