孔隙降深 的英文怎麼說
中文拼音 [kǒngxìjiàngshēn]
孔隙降深
英文
pore flow drawdown-
In this paper, high heat penetration into a moving particulate bed is described mathematically with a comprehensive heat and mass transfer model. the distribution of gas velocity and pressure, the temperature field of gas and solid in the moving particulate bed are examined for different conditions. the results show that thermal penetration into the moving packed - bed particles by fluid flow in porous media is high only in the position near the gas entrance. the thermal penetration thickness tends to increase with the fluid flow velocity and decrease with the particle moving velocity. in the region of thermal penetration, the porosity of solid bed has significant effect on gas field and pressure loss. it is feasible to reduce the gas pressure loss by a larger width / height packed bed in design and operation. the correspondence between thermal infection depth and particle bed height would be helpful to keep high oapacity of reactor and reduce the cost of operation
針對移動顆粒床中物料層內的高溫氣體滲流傳熱現象，考慮滲流與傳熱的相互作用，採用局部非熱平衡假設建立了多孔介質滲流傳熱物理數學模型並進行了數值計算.研究了不同情況下床內填充多孔介質中的流速、氣固溫度和床層壓力損失.計算結果表明，高溫熱氣對移動床顆粒料層的熱滲透主要發生在滲流入口端區域，增大入口滲流速度以及減小床層物料下移速度將導致物料溫度沿床高慢速下降，熱滲透深度擴大，熱滲透作用區域內的物料溫度水平提高.在熱滲透作用區域，孔隙率對流場和壓力損失有很大的影響.研究結果對于移動顆粒床反應器的設計與運行具有一定的參考作用Through analyzing the in - situ data such as total settlement, layered settlement and pore water pressure, the actual deformation behavior of soft foundation are mastered. after summarizing the methods of predicting settlement of soft foundation and bring forward a method to predict the post construction settlement of the surcharge preloading soft foundation. and the engineering application of the predicting foundation settlement based on “ law of massaction ” and the traditional predicting methods are compared, the results shows that the model is useable and it deserves more validation in more projects
本文以深圳灣軟基處理工程試驗區為背景，通過對淺層沉降、分層沉降、孔隙水壓力等資料的分析，掌握了軟基變形的實際性狀;在總結軟基路堤沉降預測方法的基礎上，探討了軟基超載預壓工后沉降預測的參數反演法;並對地基沉降預測的「質量作用定律」模型的工程應用與傳統的預測方法進行了對比，驗證這種方法是可行的，得出了一些有用的結論。During the excavation of foundation pit, due to the wide variation in water lever, the huge head fall should result in drastic flow of the ground water, which will bring about a full influence on the deformation of the retaining wall and on the surrounding structures in a large - scale range
在深基坑開挖過程中，需大幅度降低基坑水位，巨大的水頭差將使得土體孔隙中的水運動趨向激烈，從而影響到基坑支護結構的變形，並由此對較大范圍內的鄰近地段的安全產生影響。As the pre - evaporation time increases, the holes on the membrane surface becomes smaller and less, dense layer is becoming more evident with large and deep holes in supporting layer ; and porosity increases as well - as average hole diameter decreases
隨著預蒸發時間的延長，膜表面的孔變小變少，膜的緻密層越來越明顯，支撐層有大而深的孔結構出現。隨著預蒸發時間的延長，膜的孔隙率上升，平均孔徑下降。Three experimental schemes were taken, including the draining plastic board and pre - compression with stacking load, the draining plastic board and punning, the replacement treat after punning. the deep horizontal movement of soil body, hyperstatic pore water pressure, the ground surface settlements and horizontal movements, dynamic detection and static load experiment were carried out in site
此次方案研究採用塑料排水板+堆載預壓、塑料排水板+強夯、強夯置換等三種試驗方案，對土體深層水平位移、超靜孔隙水壓力、地表沉降及地表水平位移、動力檢測和靜力荷載試驗等進行了現場測試。The impact of deeplying cohesive soil on subsidence in tianjin is presented in this paper. based on the analysis of the consolidation law of deeplying cohesive soil, the pore configuration, and the movement of pore water, the mechanism of the consolidation of hard cohesive soil is discussed. finally, the consolidation parameters, resulting from consolidation cycles, are applied in the calculation of settling volume and the degree of forecast accuracy is satisfactory
闡述了天津市深層粘性土對地面沉降的影響，分析了深層粘性土的固結規律。通過研究孔隙結構和孔隙水運移特徵，探討了堅硬粘性土的固結變形機理。選取由固結旋迴法得到的固結參數對深層粘性土引起的地面沉降量進行了計算，獲得了較好的預測精度。Along with the increase of deepness, to porosity and permeability, mudstone reduce much more than sandstone
隨深度的增加，泥巖孔隙度和滲透率降低的幅度比砂巖大。分享友人