滲水隧洞 的英文怎麼說
中文拼音 [shènshuǐsuìdòng]
滲水隧洞
英文
infiltration tunnel-
In addition, this paper carry out successfully the support design practice in the preceding excavation of 4km long exploratory tunnel. according to the thesis research results, the following conclusion can be drawn. if the grouting rock can possess sound anti - seepage capability and the liner structure can hold higher hydraulic permeability relatively, and if the adjoining rock can be made as primary load - bearing structure by construction measure, the stability of country rock and the safety of liner structure will be guaranteed
計算結果表明,如果能使錦屏工程引水隧洞灌漿圈圍巖具有較好的防滲性能,將高外水壓力控制在灌漿圈以外,再配合透水性相對較好的支護結構以及排水措施,使灌漿圈圍巖成為主要承載結構,並使襯砌結構和灌漿圈共同承載,是可以保證圍巖的穩定和支護結構安全的。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。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。An engineering geology analysis of the frature seepage of a conveyance tunnel of hydropower station
電站輸水隧洞破裂滲水事故工程地質分析( 2 ) the method of finite element discrete and optimal parameter back analysis is adopted. ( 3 ) concentrated on the question of high external water pressure of the deep - lying tunnel, the basic theory and method calculating external water pressure are systematically studied. ( 4 ) based on jinping cascade 2 hydropower station, numerical simulation rain infiltration of seepage field under different drainage pattern and grouting pattern are studied, also, the high external water pressure is analyzed and studied and some seepage control measures are put forward
( 2 )採用有限元離散?優化法進行參數的反演分析; ( 3 )針對深埋隧洞的高外水壓力問題,進一步分析和研究了襯砌水荷載及外水壓力的作用機理和計算方法; ( 4 )以錦屏二級水電站深埋長引水隧洞作為本文的主要研究對象,採用考慮降雨入滲滲流場分析的方法對排水方案和灌漿封堵方案不同情況下的滲流場的水頭分佈進行了數值模擬,並對其外水壓力進行了分析和研究,提出了滲流控制的具體措施。Secondly, grounded on the study of the distribution of the high external waterpressure and high geostress and the characteristic of the rock in engineering area, the paper built the elastoplastic fem numerical simulation model, and think over the procedure in tunnels excavation and the history of work of water load, and then get the relations between the different tunnels diameter, different permeability coefficient and depth of the grouting rock and the deformation, stress distribution and plastic range of the surrounding rock and support structure. finally, according to the modern design theory of tunnels construction, the particular design of country rock reinforcement and support structure are researched and presented for diversion tunnels
接著,本文在深入研究工程區高外水壓力及高地應力分佈規律及巖體特性的基礎上,建立起高地應力、高外水壓力作用下隧洞圍巖結構非線性有限元模擬計算模型,然後考慮隧洞的開挖過程、水荷載的作用歷史,通過計算分析得出了不同洞徑、不同的灌漿圈滲透系數和不同的灌漿圈深度以及不同開挖過程與圍巖及支護結構的應力、位移和塑性區的關系。On the basis of the stresses analysis, the existed design rules of pressure tunnels are discussed. first, the pore - water - pressure distribution in the rock mass around the pressure tunnel is evaluated using the image well method proposed by harr ( 1962 ). the seepage - induced stresses in the rock mass is analyzed, and several conclusions are gained
首先,運用harr ( 1962 )鏡像原理推求壓力隧洞圍巖中水壓力分佈;結合水壓力的分析,利用fernandez ( 1994 )的假定推求壓力隧洞圍巖中滲流產生的應力場,並對不同地表條件下滲流產生的應力場進行詳細分析,從中得到一些結論。The deleterious effects of pressurized seepage, percolating through the natural discontinuities in the rock mass, have generally been ignored, resulting in tunnel alignments with inadequate lateral and vertical cover
壓力隧洞傳統計算方法假定圍巖是不透水介質,忽略了圍巖中滲流和滲透力的不利影響,從而導致設計時隧洞軸線方向上覆蓋層厚度不足。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。分享友人