透水常數 的英文怎麼說
中文拼音 [tòushuǐchángshǔ]
透水常數
英文
transmission constant-
And the explicit finite difference method, the combining method of the central difference method and newmark s constant average acceleration method, and the transmitting boundary are used. by comparing the acceleration determined by the several methods of the displacements or velocities, a computing method of acceleration employed the one side difference of velocity is more practicality in this research. corresponding to normal incidence of the body waves, p waves or svwaves, and rayleigh surface waves, two two - dimensional finite difference programs are compiled to compu te the dynamic response of two - phase media
以土力學模型為基礎，利用以土骨架和孔隙流體的四個位移為基本未知量的數值方法去模擬二維飽水介質中的地震波傳播，採用了顯式差分方法（中心差分法和newmark常平均加速度法結合）和透射邊界，通過比較利用幾種差分格式求解的加速度結果，發現一種用速度單邊差分求解加速度的方法在本文研究中較為實用，分別編制了體波（ p波或sv波） 、 rayleigh面波輸入時求解兩相介質動力響應的兩個二維數值分析程序。Based on the lab orthogonal tests, using self - manufactured constant head permeameter, the effect of gravel content, void ratio and particle shape on the coefficient of permeability of soil - rock - mixture was studied
本文採用室內正交實驗，利用自製的常水頭滲透儀，研究了礫石含量、孔隙比和顆粒形狀3個因素在不同水平下對土石混合體滲透系數的影響。First, on the base of investigating geleshan geologic environments, the author carefully analyzes them, studies their water storage structure, discusses the relationship of underground water dynamic changes and tunnel drainage by desiccation ; secondly, the author makes the dynamic analysis, regression analysis, routine hydrochemistry analysis, isotope analysis, so draws to guan - yin gorge anticlire east and west slot ' s karst developing features, alternated conditions underground water and supplying drain ways ; thirdly, by stating the fissuring ' s surveying data, the author calculates the seeping tensor
作者在進行歌樂山地質環境調查的基礎上，仔細分析了大量觀測資料，研究其儲水構造，掌握地下水動態變化與隧道施工涌水的關系，及補給受降雨的影響情況。對隧道周圍的地下水進行動態分析、回歸分析、常規水化學分析以及同位素分析，得出觀音峽背斜東西翼槽谷的巖溶發育特徵，及地下水的循環交替條件、補給排泄途徑；統計分析裂隙測量數據，計算滲透張量。In the light of the increasing interest among members of the public to see the chinese white dolphins in hong kong s waters, the agriculture, fisheries and conservation department ( afcd ) is monitoring closely dolphin watching activities through patrolling the dolphin sanctuary at the sha chau and lung kwu chau marine park and other waters in hong kong where the animals frequent
由於有興趣到本港水域觀賞中華白海豚的市民的數目上升，漁農自然護理署（漁護署）正透過派員在沙洲及龍鼓洲海岸公園的海豚保護區，以及海豚經常出沒的本港其他水域巡邏，密切監察有關活動進行的情況。Cixin very beautiful color bracelets, crystal default, the quality of the jade pure, pure jade thoroughly, and the shallow qingseling bracelet like the bottom of the lake is clear spring water, with numerous temptations and beautiful
此款手鐲顏色非常漂亮，晶瑩潤澤，玉質純凈，玉色純透，淺清色的鐲子如一潭清澈見底的泉水，充滿無數的誘惑與美麗。At the same time, the paper deduces the essential character of the model, gets the solution of model parameters and discusses the problems during engineering application of the analysis model. ( 3 ), one dimensional consolidation theory of impeded boundary by linear loading is deduced for layered soil, which expands the consolidation theory of impeded boundary. afterwards, the paper discusses the application of the model for settlement data of layered soil
分析了沉降數據模型的基本性質，得出了模型參數的解法，探討了沉降數據分析模型在工程應用中存在的常見問題； （ 3 ）針對分層地基，推導了等速加荷條件下半透水邊界一維固結理論解，完善了半透水邊界固結理論，並討論了沉降數據分析模型在分層沉降數據分析中的應用問題； （ 4 ）結合工程實例，闡述了沉降數據分析模型的應用。Based on the study of water cut and recovery degree for jilin low permeable oilfield, and improvement of tong ' s chart for relation between water cut and recovery degree, the constant is changed from 7. 5 to 13 according with change rule of water cut and recovery degree for low permeable oilfield
摘要在吉林低滲透油田開發含水與采出程度關系研究基礎上，通過對童氏含水與采出程度關系圖版改進，把7 . 5這個常數換成13 ，符合低滲透油田的含水率與采出程度變化規律。Based on the current research studies and needs in engineering, presented and discussed the following four fundamental problems of unsaturated seepage were : numerical modeling theories, modeling of rainfall infiltration, initial water content and hydraulic conductivity and its effect on the numerical simulation
摘要立足於非飽和滲流問題的研究現狀和應用需求，對4個常見的非飽和滲流基本問題進行了論述：非飽和滲流及其數值模擬理論；非飽和降雨入滲及其模擬中的問題；初始水分量及其考慮；土的非飽和滲透特性以及對滲流計算結果的影響。By using ec membrane material as column packing, double - distilled water as mobile phase, the retention times ( tr " ) are measured with suitable inorganic and organic compound as solutes. 3. complying with the retention times, the partition coefficient of the solute ( ka " ) and the ratio of the surface excess concentration of solute ( ) with the concentration of the parent fraction ( cab ) are calculated
利用物理改性的方法研製了乙基纖維素（ ethylcellulose ，簡稱ec ）膜材料，並將其作為高效液相色譜柱的固體填料，以高效液相色譜模擬反滲透實驗平衡條件，以水為流動相，選擇合適的無機物和有機物作為溶質，測定乙基纖維素對它們的相對保留時間及平衡分配常數k _ a 。The condition of water pressure acting on the both sides of cement - soil retaining wall is researched by computing the seepage field around the wall. it is illustrated that the coefficient of water pressure, which isn ' t constant along the height, is affected seriously by some factors, e. g., the distribution and relative hydraulic permeability of the soil beside the wall, the hydraulic permeability of its foundation, and the buried depth of the impervious layer. as a whole, the lateral pressure acting on the wall based on seepage is always smaller than that without regard to seepage in the non - excavated zone. moreover, the pressure based on seepage is greater than that without regard to seepage in the excavated zone if the coefficient of passive pressure is smaller than 1. 176. this case is of great advantage to the stability of the wall
通過計算水泥土擋土墻周圍的滲流場，研究了墻側水壓力的變化規律.結果表明：水壓力系數沿高程並非常數，且受到墻側土層分佈及其相對透水性、墻基土的透水性和下臥不透水層埋深等因素的嚴重影響.總體來說，考慮滲流時墻后的側壓力總小於不考慮滲流時的相應值，且當墻前的被動土壓力系數較小時，考慮滲流時該側的側壓力則大於不考慮滲流時的相應值，因此，這種情況有利於擋土墻的穩定Standard test methods for water permeability of geotextiles by permittivity
通過介電常數測試土工織物的水滲透性的標準試驗方法分享友人