mass excavation 中文意思是什麼

mass excavation 解釋
大面積開挖
  • mass : n 彌撒；彌撒的儀式[禱告、音樂]；彌撒曲。 a high [solemn] Mass （有燒香、奏樂等的）大彌撒。 a low ...
  • 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. 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。
  2. All the results can be utilized by engineers, during the designing and construction. the main conclusions are listed as follows : ( 1 ) based on the shortest line between weak interbed and limit of excavation and the location of point of intersection between limit of excavation, classification of weak interbed distribution is set up, and the distance of distribution is defined ; ( 2 ) according to the strength and deformation equivalent principle, influence zone of weak interbed is introduced, and a new method to simulating the weak interbed with thickness is built ; ( 3 ) some quantificational results on influence of weak interbed respectively at crown, right shoulder and right wall are summarized ; ( 4 ) some quantificational results on influence of weak interbed with the distance between weak interbed and limit of excavation 0. 2d, 0. 5d, l. od are gained ; ( 5 ) some quantificational results on influence of weak interbed in the rock mass with confining coefficient 0. 38, 1. 0, 1. 5, 2. 0, 3. 0 are summed up ; ( 6 ) some quantificational results are summarized on influence of the underground surrounding rock mass stability with weak interbed, in the representational surrounding rock mass graded ii, iii, iv ; ( 7 ) according to the studying results some advices are suggested on designing of underground engineering

    主要結論如下： （ 1 ）以軟弱夾層到開挖輪廓線最短距離和最短距離線與開挖輪廓線的交點位置為指標對軟弱夾層的分佈部進行了分類，並確定了軟弱夾層分佈距離； （ 2 ）根據強度等效和變形等效的原則，引入了軟弱夾層影響帶的概念，建立了模擬軟弱夾層厚度的一種新方法； （ 3 ）總結出了軟弱夾層分佈在拱頂、右拱肩、右邊墻時對地下洞室穩定性影響的量化指標； （ 4 ）分析出了軟弱夾層距開挖輪廓線0 . 2d 、 0 . 5d 、 1 . 0d三種情況對地下洞室穩定性影響的量化指標； （ 5 ）總結出了在不同的側壓力系數（ 0 . 38 、 1 . 0 、 1 . 5 、 2 . 0 、 3 . 0 ）地應力場中軟弱夾層對穩定性影響的量化指標； （ 6 ）得出了在、 、代表性圍巖中軟弱夾層對穩定性影響量化結果； （ 7 ）根據數值試驗成果提出了在有軟弱夾層圍巖中地下洞室設計原則的幾點新內容。
  3. Excavation disturbed zone of deep cutting rock slopes and mechanics behaviour of engineering rock mass

    深挖巖質邊坡開挖擾動區與工程巖體力學性狀研究
  4. The geologic condition in mountainous district is complex variable, in different geologic, it is very difficult to find the most economically design scheme. stability of 14 high - cut slopes in guangdong province is analyzed with typical rock mass structure analysis method and stereographic projection method, and with the numerical simulation method udec this paper simulated the excavation and reinforcement courses of the important slopes. some conclutions and suggestions are based the analysis above

    本文結合廣東某省道沿線14個高陡巖石邊坡的開挖和支護方案的選擇設計，運用常用的巖體結構分析方法和赤平投影方法對邊坡的穩定性進行了分析，採用udec數值模擬方法對一些重點邊坡的開挖支護進行了模擬，得出了以下一些結論: 1 、邊坡支護形式的選擇應遵循「安全綠色、水土保持、恢復自然、環保之路」的設計原則。
  5. 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。
  6. At the moment, the basic theory of loading mechanics is always used to search the problem of rock mass failure, but unloading and loading have different stress road and different destruction effect, so there are much difference in destruction mechanics and deformation between unloading and loading mechanics, if loading mechanics is used to study the destruction property of tunnel excavation and its stability, the result which agree to real engineering cannot be obtained

    目前一直沿用加載巖體力學方面的基本理論研究失穩問題，但本文認為：由於卸荷與連續加載具有完全不同的應力路徑和破壞效應，在破壞機理、二者引起的巖體的變形和破壞特性方面都有很大的不同，因此用加載力學來研究開挖卸荷破壞的力學特性及其穩定性，這顯然不能得出與實際工程一致的結果。
  7. 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。
  8. This paper set up a geological model of sliding mass by geological condition analysis and selection cross section of character representation of guishan sliding mass. the stability of sliding mass is calculated and evaluation under bench stoping and deck excavation in terms of six excavation schemes with limit equilibrium method. there dimensional finite element method is applied to study the stability of sliding mass to the deck excavation schemes by means of computer simulation and calculation

    通過對滑坡體工程地質條件的分析，選取滑坡體的代表性剖面建立了滑坡體的地質模型，選取極限平衡方法就滑坡體在臺階式開挖和整體開挖兩種不同開挖方式共6種具體開挖方案條件下，對滑坡體的穩定性進行了定量計算評價，提出臺階式開挖和整體開挖兩種不同開挖方式的的各開挖方案的比較結果，然後就確定的具體開挖方案開展三維有限元數值計算，並進行評價，以達到相互校核、相互驗證的目的，最後，確定出工程應用的開挖施工方案。
  9. ( 3 ) fem basic theory of foundation pit excavation stimulation is expounded, numerical model and method of construction simulation are determinated, which includes simplification of two - dimension problem and constitutive model of soil mass i. e. constitutive model of duncan - chang hyperbola model, numerical ways of initial situ stress, stimulation of equal nodal load of foundation pit excavation, nonlinear solutions of basic equations, fem disposing of inner supporting and pre - axial force etc. further fem code of stimulation of foundation pit excavation is compiled

    闡述了基坑開挖模擬的有限元基本理論，確定計算模型及施工模擬方法。包括二維問題的簡化、土體的本構模型，即鄧肯-張雙曲線本構模型、初始地應力場的計算方法、基坑開挖等效結點荷載模擬、基本方程的非線性解法、內支撐及預加軸力的有限元處理等，並編制了模擬基坑開挖的有限元程序。
  10. Based on the simplified structure of rock mass, flac ( superscript 3d ) numerical modeling technique is used to systematically analyze the distribution features of the secondary stress field, strain field and plastic zones in the surrounding rock mass of the underground cavities after the excavation

    摘要在巖體結構模型概化的基礎上，採用flac （上標3d ）數值分析方法，系統研究了瀾滄江某大型水電站大跨度、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。
  11. In this thesis, the rock mass is treated as a continuous porous elastic medium, on the basis of the seepage field of the rock mass, the pore - water - pressure distribution in the rock mass around the tunnels is evaluated. then, the seepage - induced stresses in the rock mass is studied. based on the analysis of stress field in the rock mass around the excavation, the stresses behavior of the pressure tunnel with the internal pressure is studied using the coupled seepage - stress model

    本文將圍巖看作連續的透水彈性介質，從壓力隧洞圍巖滲流場著手，分析壓力隧洞圍巖中水壓力分佈，進而研究圍巖中滲流產生的應力場，結合對隧洞圍巖二次應力場的分析，探討考慮滲流場和應力場耦合作用下圍巖三次應力場特性。
  12. ( 4 ) according to the new methods of dynamic numerical simulation analysis and resting on the engineering geological conditions of surrounding rock mass and the project design, the three numerical simulation results are obtained, from which the author analyze systematically the distribution features of stress field, strain field and plastic zone in the surrounding rock mass of the underground cavities after the excavation and also the variable features of stress field, strain field and plastic failure zones in the surrounding rock mass of the underground cavities in the course of excavation

    （ 4 ）按照動態數值模擬新思路，以地下洞室群圍巖的工程地質條件和工程設計方案為依據，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分佈特徵，開挖過程中圍巖的應力場、變形場和塑性破壞區的變化特徵。
  13. Displacement back analysis and optimum design of excavation subsequence in underground engineering are important to reliability analysis of surrounding rock and detail design. in underground engineering the method to determine initial ground stress and mechanical parameters of surrounding rock mass and excavation subsequence is key problem to design and study

    地下工程位移反分析及開挖順序優化設計是地下工程圍巖穩定性分析與施工設計的重要內容，探討地下工程圍巖初始地應力與力學參數以及其開挖施工順序的確定方法是目前地下工程設計與研究的關鍵問題。
  14. ( 5 ) selecting rock mass quality, excavation effect, multi - cavern effect and induced hazard effect as indexes, the stability classification scheme of rock mass surrounding large scale underground caverns was established. at last the stability of the surrounding rock mass of the main chamber of laxiwa project was evaluated with this scheme

    選取巖體質量、開挖效應、群洞效應以及次生災害效應作為指標，建立了「大型地下洞室群圍巖穩定性分類」方案；運用該方案對拉西瓦水電站主廠房洞室進行了穩定性評價。
  15. On the basis of the site measurement, lab and numerical simulations, it is pointed out that there is usually a broken state zone existed around a deep excavation ; this zone has many special characteristics and is a comprehensive index to represent the action of both earth stress and rock mass strength on the stability of underground projects

    在現場實測、物理和數值模擬的基礎上，提出深埋地下工程的圍巖中普遍存在破裂狀態，並認為這一破裂狀態區域具有許多特殊的性質和規律，是一個反映地應力和巖體強度對地下工程穩定性作用的綜合指標。
  16. The study shows that the deck excavation schemes is good than the bench stoping schemes by calculation of limit equilibrium method and the sliding mass to the excavation the slide up to el 790m is in stabilization under vii earthquake intensity with there dimensional finite element method by means of computer simulation and calculation.,

    研究結論是，從剛體極限平衡法的計算結果分析，臺階式開挖方案和整體開挖方案比較，整體開挖方案比較明顯要好於臺階式開挖方案。為了保證工程的安全性，同時兼顧工程開挖措施的經濟性，建議重點考慮開挖高程為790m的整體開挖方案。
  17. In this paper, systematic numerical test have been carried out to study the stability of surrounding rock mass with different distribution of weak interbed, different distance between weak interbed and limit of excavation, different thickness of weak interbed, in the different confining coefficient and representational surrounding rock mass graded ii, iii, iv. all of the numerical modeling is plain - strain type with elastic - plastic constitutive law and mohor - coulomb failure criterion, through the integrated numerical analysis program final. plentiful numerical test results have been drawn via analyse the deformation, tensile stress region, plastic region of surrounding rock and the stress status of shot - crete

    大量的工程實踐表明，軟弱夾層對地下洞室圍巖穩定性的影響有著決定性的作用，本文以大型數值模擬分析系統final為平臺，採用彈塑性應力應變關系和m - c屈服準則建立平面應變問題有限元模型，對軟弱夾層的分佈部位、分佈距離、軟弱夾層的厚度對圍巖穩定性的影響以及在具有不同側壓力系數的地應力場中和、 、類代表性圍巖中軟弱夾層對圍巖穩定性的影響進行了系統的數值試驗，研究得出了軟弱夾層對圍巖位移、拉應力區、塑性區以及噴射混凝土層內力等影響豐富的量化成果，以便直接為工程設計人員提供參考。
  18. The blasting of slope excavation results in the damage of rock mass consequentially

    摘要邊坡開挖爆破必然造成邊坡巖體的損傷。
  19. ( 4 ) the influences of cavern shape, cavern scale and geostress on excavation effects for single cavern and the influences of distance between different caverns, rock mass quality and construction order etc on the excavation effects of caverns were studied. the features of multi - cavern effect of laxiwa underground project were studied

    分析了洞室形狀、洞室規模、地應力因素對單個洞室開挖效應的影響：分析了洞室間距、巖體質量、開挖順序等因素對復式洞室開挖效應的影響；討論了拉西瓦地下洞室群群洞效應的具體規律。
  20. The criterion to judge the relaxation depth of rock mass of excavation slope is defined by analyzing data of sonic wave speed and field investigation, and the distributing law of various weathered degree fossil weathered rock on slope of are educed. the mechanics parameters of relaxed rock mass are studied by using relational expression between mechanics parameters and value of sonic wave speed, which provide convenience for the study of mechanics parameters of rock mass in different state

    在此基礎上，利用現場調查和實測波速資料，制定了邊坡開挖巖體鬆弛帶深度的判定標準，從而分析得出了各風化程度古風化巖邊坡的鬆弛帶分佈規律，並採用波速與巖體力學參數的相關式對鬆弛帶巖體的力學參數進行了研究，為研究不同狀態下巖體的工程特性提供了方便。
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