For this purpos, from the point of the log geology, aimed at the actuality of the current fractured reservoir log geology interpretation and evaluation, based on synthetical analysis of the current domestic and foreign fruit of fractal dimension investigation of reservoir fracture, using the method and technique of fractal dimension, through the further discussion of the fractal dimension characteristics of m index and n index in the log interpretation archie model in a sample way and through the theoretic reasoning to the fractal dimension dfa and m index of fractured reservoir interval ' s log curve, according to the geophysical signification of the fractal dimension dfa of fractured reservoir interval ' s log curve shape : the more complicated the change of the curve shape is, the larger the its dfa value is, then the more complicated space structure of fracture and pore, then the higher value of m index of space structure of fracture and pore, and so on, the text propounds an improved method, based on box dimension, of covering log curve with scale grid, and by programming computes the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, then further puts this technique into application investigation, and makes analysis of application effects in the reservoirs located in l area of qx oil field from three aspects : 1. the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, which are derived from computing, is used to identify reservoir type by crossplotting m index with the product df _ acrt of fractal dimension of acoustical wave log curve and restivity log curve and by experiential discriminance plate of reservoir type in l area of qx oil field
因此,對該區裂縫性儲集層的類型識別、孔
滲特徵的測井地質解釋以及儲層裂縫的發育和分佈規律進行深入的研究便成為本文研究的出發點。為此,本文從測井地質的角度,針對當前裂縫性儲層測井地質解釋與評價的現狀,在綜合分析當前國內外儲層裂縫的分形分維研究成果的基礎上,利用分形分維方法和技術,通過對archie測井解釋
模型中的m指數、 n指數的分形分維特性的深入淺出的論述以及裂縫性儲層段測井曲線分維d _ ( fa )與m指數的理論推導,根據裂縫性儲層測井曲線形態分維值的地球物理意義? ?曲線變化越復雜,則其分維值d _ ( fa )越大、裂縫孔隙空間結構越復雜、裂縫孔隙空間結構指數m值越高等特徵,提出了改進的基於盒維數的測井曲線網格覆蓋法,編程計算了裂縫性儲層段常規測井曲線(如聲波和電阻率曲線)上分形分維值及其m指數值,進而從以下三個方面對qx油田l區塊的裂縫油藏進行應用研究,效果十分理想: 1將計算得到的可變的m指數與聲波和電阻率分維之積df _ acrt進行交繪,採用儲層分維值分類技術統計分析這些參數變化的規律,並結合qx油田l區塊儲層類型經驗判別圖版,從而實現qx油田l區塊下白堊統的裂縫性儲層的類型識別。
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。
During the new - style school which stood for the new cultural and was sustained by the government was entering into the country, the private school which stood for the old cultural also was struggling to exist resorting to its agrestic adaptability and special functional agility. the private school was replying to the challenge from the new - style school. when the two style schools were facing each other, there formed the exceptive pattern of education
代表新文化的新式學校以政府為其後盾不斷地向鄉村社會
滲入的同時,代表傳統舊文化的私塾也以其特有的靈活性和鄉土適應性掙扎著生存,並回擊著來自「新學」的「挑戰」 ,二者交鋒對壘,形成了別具特色的新舊並存的二元教育
模式。
The university is a global - information place to the great extent, in which university students are the closest group to the network, they are not only the anticipators and propellers, but also the creators of the network, with the widely use of network in the university education, the culture of network is popular quickly in the campus. how to eliminate the passive effects of u. s and other western nations, occupy the network field adequately, strengthen and improve morality work is a important subject that we will face with in the new century. so the morality workers must face to the future, research the law of the network on the theory deeply, and probe morality work ' s new methods, new patterns, and new ways, at the same time, we also must show our spirits in order to create new situation
隨著網路技術在高等教育中廣泛應用,網路文化在大學校園中迅速普及。如何最大限度地消除美國等西方敵對勢力利用網際網路等的負面
滲透,充分佔領網路陣地,正面創新高校德育工作是我們在新世紀面臨的重要課題。對此,高校德育工作者必須站在時代的高度,在理論上深化對網路德育工作規律的研究;在實踐上勇於探索網路時代德育工作的新方法、新
模式、新途徑,以創新的精神開創網路時代高校德育工作的新局面。
Three wheat cultivars, yannong 19 ( with spread plant type ), jimai 20 ( with semi - spread plant type ) and taishan 23 ( with erect plant type ), were used to investigate the wue ( water use efficiency ) change under raised bed planting with furrow irrigation and conventional flat planting with flood irrigation
摘要為尋找提高小麥水分利用效率的途徑,以株型擴張品種煙農19 、株型緊湊品種泰山23和株型半擴張品種濟麥20為材料,比較研究了壟作(小水溝內
滲灌)和平作(大水漫灌)兩種栽培
模式下小麥的水分利用效率。
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。
In the first part, it was discussed that the effect of different distribution of shale in shaly sandstones on their permeability based on capillary buddle model
第一部分,在毛細管束
模型基礎上,從流體力學理論出發,探討了泥質的不同分佈形式對
滲透率的影響。
The main contents are as follows. ( 1 ) filter cloth and the surrounding soil mass are taken as an approximate isotropy in horizontal section, the relationship of stress and strain is studied, the anisotropy is fully considered, the constitutive model of filter cloth reinforcement fly - ash compound is obtained, it is tested with numerous indoor experiments. ( 2 ) the permeable coefficient is introduced into the constitutive relationship of soil mass with relevant seepage theory ( kozeny - carman experience formula ). the test of filter cloth depositing hi the condition of long term seepage flow is done hi the dissertation, the varying regular of permeable coefficient without pressure is presented
本文首先對國內外的研究現狀作了回顧和總結,然後主要針對土工織物加筋粉煤灰復合體的本構關系和計算理論進行研究,主要內容有: ( 1 )將土工織物和周圍土體視為一種近似的彈性非線性橫觀各向同性體,研究它的應力應變關系,充分考慮它的各向異性,得到土工織物加筋粉煤灰復合體的本構
模型,然後通過大量室內試驗進行分析驗證; ( 2 )引入有關
滲流理論,即柯茲尼-卡爾曼( kozeny - carman )經驗公式,將
滲透系數引進到土體本構關系中。
Abstract : considering the stochastic characteristic of main hydrogeologic parameters in yuanbaoshan open coal pit, a groundwater stochastic management model for optimal drainage borehole design is established. the result of the modeling shows the effect of stochastic characteristics of hydrogeologic parameters on the result of management modeling. it was found that the higher the parameters uncertainty and the management reliability level, the worse the management result
文摘:從影響元寶山露天礦地下水疏乾的主要水文地質參數隨機性特徵分析入手,建立並求解了元寶山露天礦疏干工程優化設計的隨機地下水管理
模型,揭示了水文地質參數隨機性對管理
模型結果的影響,認為參數的隨機性越大,管理結果越壞;置信水平越高,管理結果越壞,且
滲透系數和邊界條件對管理結果影響最大。
The rate of contribution of various edaphic physical parameters is different from parameter of soil water infiltration model in different soil texture and husbandry condition, so independent variable factor and priority are different in regression models. the predicted results are satisfactory in correlation husbandry condition
在不同的土壤質地和不同的耕作條件下,土壤的各種物理參數對土壤的水分入
滲模型參數影響程度不同,因此引入到回歸
模型中的自變量因子不同,引入的先後次序不同。
Based on the data, infiltration parameters k, ai and bi were obtained according to the flow advance and recession course of the stream in the furrow, on the base of which, the model of surge furrow irrigation was set up
基於田間實測的田間入
滲及灌水試驗資料,利用灌水溝水流推進、消退過程,求得波涌灌入
滲參數k , a , a _ i和b _ i ,並由此得出波涌灌的入
滲模型。
Based on the data obtained from the experiments on the soil with same structure under three cropping patterns, this paper makes a research into the numerical relation between the parameters of infiltration model and physical parameters of soil, and forms the statistic model about them, in order to produce a simple and easily used calculation method and a model for infiltration parameters and to provide the calculation parameters as required for the technical parameters of the water - saving irrigation
本文以榆次同一質地三種不同耕作方式下的土壤在自然條件下進行的大量試驗結果為依據,分析了土壤入
滲模型參數與所獲得的土壤物理參數之間的定量關系,研究和建立土壤入
滲模型參數與土壤物理性狀參數間的統計
模型,為地面灌溉節水向深層次的發展提供簡單易行的土壤入
滲參數確定方法和
模型,為確定節水灌水技術參數提供所需的計算參數。
The diffusion coefficient is scaled up with porosity percent. the gas diffusion is simulated using diffusion equation in fractal porous media. dispersion process in porous media is analyzed and simulated by use of monte carlo method in this paper
第四章將蒙特卡羅(隨機
模擬)方法應用於多孔介質中的物質傳輸過程,採用通道逾
滲模型,對不同孔隙通道聯結率下的彌散規律進行了分析。
The key to calculate the moistening deformation is to work out the distribution of the water content. aiming to the collapsible accidents owing of leakage, this text establishs two - dimensional immersing model of collapsible loess and predicts the change of water content in loess subsoil. furthermore the text selects the stress path method to calculate the moistening deformation subjected to leakage, substituting compressing moduls for tangent moduls after taking cavity ratio and water content into account, putting forward the method to calculate the moistening deformation
增濕變形的關鍵是研究含水量的變化,本文針對黃土地基由於漏水所引起的濕陷事故,建立了二維濕陷性黃土地基積水入
滲模型,實現了對黃土地基含水量變化的預測,進一步選擇了分層總和法計算黃土地基增濕變形,考慮了含水量、孔隙比對
模量的影響,以弦線
模量取代壓縮
模量,提出了計算增濕變形的計算方法,計算了由於漏水而引起的黃土地基增濕變形量。
It is feasible to predict soil infiltration capacities by routine physical parameters with stepwise regression models with multiple units
採用多元逐步回歸
模型用常規土壤物理參數對土壤水分入
滲模型參數進行預報是可行的。
A one - dimension model was proposed simulating the regularity of moisture flow under rainfall condition
摘要應用非飽和土一維降雨入
滲模型
模擬膨脹土基坑邊坡在降雨入
滲條件下的水分運移規律。
Soil water infiltration capacities and parameters of soil water infiltration model make severe change in agriculture productive period, but have definite change law as well
土壤水分入
滲能力與土壤水分入
滲模型參數在農業生產周期內發生劇烈變化,但也有一定的變化規律。
The nonlinear flow simulation using double permeability model in deformed media
變形介質雙
滲模型非線性流動
模擬
The irrigation process of frozen soils is analogous with unfrozen soils and corresponds with k o c t r k o b infiltration model
凍結土壤水分入滲過程與非凍結土壤類似,符合考斯加科夫入滲模型。