滲流水頭 的英文怎麼說
中文拼音 [shènliúshuǐtóu]
滲流水頭
英文
seepage head-
This paper analyzes the groundwater discharging course using fluidics theory and combining quay structure construction ; sets up the method of fast drainage by the dint of pipeline and blind ditch of fragment stone ; and gives the computational mathematical model for quay drainage and calculation formula for drainage process according to the principle of conservation of mass and underground percolation, which have been applied for quay ' s stability design and calculation
應用流體力學理論結合碼頭結構建設,分析了地下水排泄過程,藉助管道和碎塊石盲溝建立了港口碼頭快速排水與擋墻基床排水的方法;運用質量守恆定律和地下水滲流原理,建立了港口碼頭排水計算數學模型和排水過程計算公式,並用在了碼頭的穩定設計計算中。As for actual embankments, the hydraulic head, cross section shapes, properties of filled soil, geological conditions and so on all vary greatly, it ' s hard to define precisely the distribution of seepage field and take effective seepage prevention measures
因實際工程中堤防的作用水頭、堤身斷面、填土性質、地質條件等均千變萬化,導致難以全面而準確地分析其滲流場分佈並採取有效的防滲措施。The infiltration rate in wetting front interface is speeder than that under single trickle source. the wetted soil volume shape becomes a strip which parallel lateral. the soil water content distribution under trickle source wetting front overlapping is more than that of single source
在滴頭流量為5 . 3l h條件下,在相同的入滲時間內大容重土壤的水平入滲距離較低容重的土壤大27 ,而其豎直入滲距離則較小容重土壤小14 。In case of big discharge rate, the influence in horizontal is notable. however, in case of small discharge rate, the influence in vertical wetting front is notable, ( 3 ) in case of trickle source wetting front overlapping, the infiltration pattern is different from that of single trickle source infiltration
在滴頭流量為2l h條件下,在相同的入滲時間內,大容重土壤的地表水平入滲距離較小容重土壤大7 ,而其垂向入滲距離則較小容重土壤小20 。It is concluded : the determination of the center spacing may be conducted under the permissible elevation of the exit line of seepage surface on slope surface downstream. in the end, the author has analysed the seepage field what the holes are placed two rows along the slope height
另外,在對比多種孔距的方案分析結果的基礎上,得出結論:排水孔孔距變化對邊坡滲流場沿邊坡走向方向水頭分佈影響明顯,布設排水孔應根據目標降深確定排水孔孔距。The analysis of effects of reservoir under the high water head upon tunnel seepage flow based on geo - slope
分析高水頭作用下水庫對隧道的滲流影響It concludes that percolation of roller compact concrete is of self - compactness by time effect under continuous action of water head and there may exist partial darcy flow regime in roller compact concrete under high water head
認為在持續水頭作用下,碾壓混凝土的滲透具有時效自密性;高水頭作用下的碾壓混凝土可能存在偏達西流現象。The result shows that the drainage curtain is of high drainability under smooth drainage condition, and that the variation of the spacing between drainage holes within a certain range is of little influence on the water head distribution of the seepage field
研究表明,排水幕在排水通暢的前提下具有強大的排水能力,其排水孔間距在一定范圍內變化對滲流場水頭分佈影響不明顯。( 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。The special structure of zippered plastic pipe zippered seep holes made a greater seepage quantity on the condition of bare pipe ( no anti - blocking material adopted at the mouth of seep holes ). so several kinds of anti - seepage material were adopted in the experiment of this part in order to find the proper anti - seepage material ( nonwoven fabrics glued by neoprene ) and working head ( 3m ' s working herd on initial irrigation )
由於拉鏈式塑料管的獨特構造(拉鏈式滲水孔口) ,裸管(滲水孔口不採用任何防堵材料)情況下滲流量很大,所以本部分試驗採用了幾種防滲材料試驗,最後通過比較分析,找到了合適的防滲材料(氯汀膠粘無紡布)和工作水頭(初始灌水時3m工作水頭) 。The nonlinear exponent is a function of the radial distance from the pumping well. the two - regime well flow problems being in the steady state. in the fourth chapter, the problems of two - regime well flow have been discussed concentrating on a kind of special seepage law
第四章對一種特殊的非線性滲流規律即充分紊流的情況,進行了全面、詳細地討論,推導出了該情況下井流問題的滲流速度、水頭降深和井流函數的解析表達式,作出了些具有代表性的標準曲線。The following contents are included : ( 1 ) based on the fundamental seepage theory, the basic differential equation of saturated - unsaturated seepage in porous mediums has been deduced, in which the pressure head is the fundamental unknown quantity. furthermore, the equation for rcc dam is deduced too
主要內容包括: ( 1 )從滲流基本理論出發,以壓力水頭為基本未知量推導多孔介質三維飽和非飽和滲流微分方程,並根據碾壓混凝土壩的特點得出適合其自身的滲流控制方程:進而對碾壓混凝土的滲流基本理論、滲流特性開展深入的研究工作。( 2 ) the emitter discharge of simple subsurface drip irrigation is greater than the infiltration rate after formed saturate loop in the short time. infiltration rate under subsurface drip irrigation is not only affected by soil texture, original soil moisture content and soil bulk density et al, but also by emitter discharge, which affect by water pressure
( 2 )地下滴灌的灌水器出流量一般在較短時間內形成飽和圈后,土壤入滲速率不僅受到土壤質地、土壤初始含水率、土壤容重等因素的制約,而且還與影響灌水器出流速率的壓力水頭有關。The primary contents are as follows : ( 1 ) based on the fundamental seepage physical equation, the basic differential equation of saturated - unsaturated seepage in porous mediums has been deduced, in which the pressure head is the fundamental unknown quantity. a calculated model for analysis of saturated - unsaturated seepage field with the boundary condition of rain infiltration also has been developed
總體說來,本文主要從以下幾個方面開展了研究: ( 1 )由基本滲流物理方程出發,以壓力水頭為基本未知量推導多孔介質三維飽和?非飽和滲流微分方程,在此基礎上分析了邊坡在有降雨入滲條件下滲流的定解條件和計算模型。The mode of the seepage deformation evolution is illuminated by means of theoretical analysis and numerical computation
測試得到隨著滲透變形的發展,堤基內部水頭的變化、流量變化以及預留出口出砂面積的變化情況。In general, the wetted soil volume is a semi - elliptic cone. the relationship between horizontal and vertical wetting front and infiltration time is remarkable power function. the relationship between wetted soil volume and infiltration time is remarkable stright line, and in case of certain volume of applied water, the wetted soil volume is not influenced by discharge rate
微源入滲的水平和垂向濕潤鋒與入滲時間存在極顯著的冪函數關系;土壤濕潤體體積與入滲時間之間存在顯著的線性關系,直線斜率和供水強度有關;土壤濕潤體體積和灌水量之間存在顯著的線性關系,在灌水量一定的條件下,滴頭流量對濕潤體體積影響很小,在滴頭流量為2 5 . 3l h的范圍內,對于同一灌水量濕潤體體積的差異保持在5以內。The author has analysed the seepage behavior of the fields in slope with the major parameter of the drain hole diameter and the length of hole. it is concluded that within the usual diameter of the hole, the size of the hole diameter has only minor influence on the field and the length of hole has more distinct influence. the author has analysed the effect of the center spacing change on the seepage field
其次,本文利用排水子結構法模擬排水孔,對排水孔孔徑、孔長多種布設方案的滲流場分佈對比分析,認為在通常可能取值的孔徑范圍內,孔徑變化對排水孔排水效果有影響,但影響較小;提出了孔徑選擇的原則;排水孔排水效果對排水孔孔長變化比較敏感,排水孔布設長度的選取應根據邊坡處治需要降低水頭的沿邊坡傾向方向的邊坡范圍來確定。分享友人