surrounding rock failure 中文意思是什麼

surrounding rock failure 解釋
圍巖破壞
  • surrounding : n 〈pl 〉周圍的事物[情形]，環境；附近。 picturesque surroundings 畫一樣美麗的環境。 social surrou...
  • rock : n 1 巖，巖石，磐石，巖壁；卵石；〈常 pl 〉〈美口〉石子兒；暗礁，巖礁。2 〈the R 〉直布羅陀 （Gibr...
  • failure : n 1 失敗 （opp success）; 不及格。2 不足，缺乏；衰退；【醫學】衰竭。3 不履行，玩忽。4 破產，倒閉...
  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. The change regularities of lining pressure and the failure process of surrounding rocks in permeation which a special sand is used as model materials are successfully simulated. the basic theory is established for the study of same type and the scientific basis for the tunnel prop design in saturation rock is provided

    採用特定的河砂作為模型材料成功地模擬了破碎圍巖隧道在遇水情況下襯砌的受力變化規律及巖體的破壞過程，為開展同類型研究奠定了基礎理論，為飽水巖體隧道開挖支護設計提供了依據。
  3. Erosion damage decreases rock load area, after defining damage variable, the damage stress in rock can be calculated by the method bring forward by lemaitre conveniently. for surrounding rock of a deep buried tunnel under the condition of drained, its seepage character is not only controlled by the high stress in rock, but also influenced by the development of erosion damage. in the whole course of rock " s deformation and failure, its seepage character decreases with the increment of stress in elastic stage, while " increases with the development of failure

    巖樣中全應力?應變三軸滲透試驗過程中的典型表現為隨著應力的增加，巖體內的空隙和裂紋受載閉合，滲透性降低，應力達到一定閾西南交通大學鷹士研究生學位論文第11頁值后，巖體內部裂紋發生擴展和歸並，滲透性增強；同樣，地下水的動、靜壓力作用對裂紋的擴展和歸並也起著促進作用。
  4. Based on the in - situ measurements of ground pressure and physical and mechanical properties of rocks in guhanshan coal mine, and analysis of minerals composition and fissures in rock, the type of soft rock was determined to investigate the deformation and failure of surrounding rocks and floor heave happened in extremely soft rock roadway in guhanshan coal mine, which provides the basic news for support of rock soft

    摘要針對古漢山礦軟巖巷道圍巖變形破壞和嚴重底膨問題，通過對巷道圍巖進行地應力測量、物理力學性質分析測試、礦物成份分析和節理裂隙調查，確定了底膨巷道的軟巖類型，這為解決軟巖巷道的支護問題提供了基礎。
  5. And that, the variable regulations of stress field, strain field and plastic failure zones in the surrounding rock mass of the underground cavities are summarized for the right and the left bank of underground chambers

    全面總結了溪洛渡水電站左、右岸地下廠房洞室群圍巖應力，變形和破壞區的分佈特徵和變化規律，為洞室群穩定性評價和工程施工設計提供了基礎資料和理論依據。
  6. And the variation characteristics of stress field, strain field and plastic failure zones in the surrounding rock mass of the underground cavities are summarized, which provides basic information and reference for the evaluation of underground cavities stability and project construction

    總結了地下洞室群圍巖應力、變形和破壞區的分佈特徵和變化規律，為洞室群穩定性評價和工程施工設計提供了基礎資料和參考依據。
  7. And the main contents of this dissertation are : ( 1 ) the engineering geological features of discontinuities in surrounding rock mass were analyzed on the basis of field geological survey and the preferred orientation of the main discontinuities were derived. then the displaceable blocks distributing on the roof and sidewalls of main chamber were searched out taking the intersecting relationship of discontinuities into consideration. then the failure mode and the coefficient of stability of the displaceable blocks were studied respectively

    主要內容包括：在野外地質調查基礎上，通過統計分析得到地下廠區結構面的優勢方位；對結構面工程地質特性進行了分析；根據結構面的空間組合關系，搜索出可能在主廠房洞室的頂拱和邊墻部位出露的塊體，並分析了各塊體的可能滑移方式及其穩定性系數。
  8. Results show that clamping angle dominated displacement of anchorage and failure mechanism : surrounding rock and soil compaction is induced by small clamping angle, instead, shear failure occurs in neighborhood soil of leading end of anchorage while clamping angle is big ; anchorage length influenced surrounding rock stress as nonlinear self - organization critical characteristic on interface ; anchorage size contribution to systemic primary monitor parameter is relatively uniform

    研究發現：夾持角控制著錨碇變位和破壞機理，夾持角過小時錨碇壓密圍巖土體，較大時錨碇前端附近土體則產生剪切破壞；錨碇長度影響接觸面圍巖應力量值，表現為非線性的自組織臨界特徵；錨碇體粗細對系統主要監控參數的貢獻相對均勻。
  9. Study on failure laws of surrounding rock in the steep dip and extra - thick coal seam mining

    急斜特厚煤層開采圍巖破壞規律研究
  10. ( 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。
  11. It is found that the rational located destressing boreholes can induce structural failure of the surrounding rock - mass, consequently the high stress move deeply in the rock - mass, and the stress environment in the surrounding rock is ameliorated, the spatio - temporal order of the destruction of the surrounding rock - mass is changed when the destressing boreholes and bolting net with wire mesh composite support are accomplished, therefore the compound supporting technology has prominent advantage for control the deformation and destruction of the surrounding rock

    模擬發現：合理布置的卸壓孔可以導致巷幫圍巖的結構性預裂破壞，從而使圍巖高應力向深部轉移；在卸壓孔和錨網聯合支護后改善了圍巖附近的應力環境，改變了圍巖破壞的時空次序，對控制圍巖變形和破壞具有突出的優越性。
  12. 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。
  13. Based on the analyses of dynamic deformation process of the soft failure roadway under high ground stress, process - monitoring stepwise supporting principle was put forward to maintain this kind of roadway, that is 1 ) making full use of the carrying capacity of surrounding rocks, 2 ) timely reinforcing the surrounding rock by grouting to enhance its integrality, and 3 ) reinforcing supporting in those key positions

    基於該類巷道變形的動態階段性特點，針對性地提出該類軟巖巷道支護的過程監控分步支護的過程式控制制方法，即開巷初期充分發揮圍巖自身的承載能力；適時採取圍巖注漿加固， 「保護與強化」圍巖力學性能，提高圍巖完整性；最後關鍵部位加強支護。
  14. And that, the variable regulations of stress filed, deformation field and plastic failure zones in the surrounding rock mass of the underground cavities are summarized. based on the analysis of the effects of rock mass qualities on surrounding rock mass stability, the control effect of rock mass qualities about stability of surrounding rock mass was studied

    總結了地下洞室群圍巖應力、變形和破壞區的分佈特徵和變化規律，並通過對比分析圍巖質量對其穩定性的影響，闡明了巖體質量對圍巖穩定性的控製作用，為洞室群穩定性評價和工程設計施工提供了基礎資料和理論依據。
  15. Based on the characteristics of intense deformation - failure of surrounding rock in a soft and thick coal seam roadway along gob area coal mine, the structure calculating model of original rocks around a roadway along gob area is constructed by knowledge of mechanics, and various bolt - mesh - anchor supporting schemes are simulated and supporting parameters optimized, supporting schemes is proposed, which is secure and economic

    摘要針對松軟破碎厚煤層綜放沿空巷道圍巖變形破壞特徵，建立沿空巷道原始圍巖結構計算模型，模擬計算各種不同支護設計方案，優化支護參數，選定安全經濟的支護方案。
  16. Abstract : based on the analysis of the main causes of stope chute failure, flac3d numerical calculation software is used in the systematic study of the mechanical state of the surrounding rock before and after the chute reinforcement from the aspects of the stress distribution of rock mass, the plastic fractured region and the movement of rock mass so as to disclose the fracture mechanism of the surrounding rock and the mechanical system of the reinforcement engineering

    文摘:在分析造成采場溜井破壞的主要原因基礎上，應用flac3d數值計算軟體，從巖體應力分佈、塑性破壞區和巖體移動等方面，系統研究了溜井加固前後的圍巖力學狀態，揭示了圍巖破壞機理和加固工程的力學機制。
分享友人
分享到 Line

分享到臉書