覆土力 的英文怎麼說

中文拼音 [fùtǔlì]
覆土力 英文
overbarden pressure
  • 覆 : 動詞1. [書面語] （蓋住） cover 2. [書面語] （底朝上翻過來; 歪倒） overturn; upset 3. 同 「復」 （Ⅱ1. 2. ）
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  1. They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem

    本研究以重慶市的南川金佛山（自然保護區） 、黔江武陵山（國家重點退耕還林示範縣，森林覆蓋率50以上）和北碚中梁山（遭人為破壞嚴重）典型巖溶區為對象，選擇了幾種重要的利用方式，包括林地、果園、耕地、棄耕地和灌草坡，採用野外巖溶生態調查和室內試驗測量分析相結合的方法，以不同土地利用方式巖溶土壤肥力為重點，對不同土地利用方式土壤肥力特徵進行量化分析，找出巖溶土壤肥力差異的主要方面及其根本原因，論文主要從土壤剖面物理退化指標（有效土層厚度、有機質層厚度、質地、團聚體、水分含量等） ，化學肥力退化指標（有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等） ，樣地土壤微生物指標（細菌、真菌、放線菌數量及總量）以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究，為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。
  2. Based on the relative independence of mathematical cover and physical grid, and considering the action of truely existent various equilibrant force in system for system balance, a method of simulation for excavation unloading using numerical manifold method in geotechnical engineering is proposed

    摘要基於數值流形方法數學覆蓋與物理網格的相對獨立性，考慮任一時刻體系中真實存在的各平衡力項對體系平衡的作用，提出用數值流形方法模擬巖土工程開挖卸荷的方法。
  3. Roll over protective structure ( rops ) is a device which installs on out of construction vehicle. the main functions are : when the vehicle rolling over. rops can prevent the vehicle from rolling over further, and reduce the possibility of rolling vehicle injures operator ; when the vehicle traveling on freezing soil. concrete and rock, it has large resist continuous impact ability ; when the vehicle overturning rops can support the whole vehicle. arrangement of falling object protective structure ( fops ) can block objects ( such as trees, rocks ) so that supply protection for operator. this problem is that research rolling over and falling objects protective structure of bulldozer by learning research condition of rops / fops and relative lay down international standard. on the base of theory analysis. detrudes counting formula of rops / fops deformation through founding mechanics analysis model of rops / fops at the stage of elasticity and plastoelastic. and finds a set of feasible nonlinear finite element analysis counting. lt calculates rops / fops plastoelastic deforma variable of 320hp bulldozer, bulldozer has been carried out by optimizing design method

    其主要功能是：當車輛滾翻時， rops能刺入未凍土壤而阻止車輛的進一步滾翻，降低滾翻的車輛對系著安全帶司機軋傷的可能性；保證rops在碰撞和沖擊變形不大的地面（如凍土、混疑土上、巖石）時，能具有相當大的抗連續沖擊能力；當車輛已經處于顛覆狀態時，已經變形的rops應能支撐住整車。落物保護裝置（簡稱fops ） ，其構件的布置方式要能遮蔽墜落的物體（如，樹木、巖石等） ，以便對司機提供適當的保護。本課題主要通過了解國內外有關對rops fops的研究情況和有關國際標準的制定，對大型推土機傾翻和落物保護裝置進行研究，在理論分析的基礎上，通過建立rops fops的力學分析模型，推導彈性、彈塑性階段rops fops變形的計算公式，建立一套可行的rops fops的非線性有限元分析計算方法。
  4. The results show that : the main driving forces of arable land change of shouguang county are the per capita income, the ratio of the pasture output value, the ratio of the cropping output values and the ratio of agricultural labor force proportion ; the main driving forces of arable land change of quzhou county are the variation of grain yield per unit area, the ratio of the pasture output value, the ratio of the cropping output values, the ratio of grain field areas and the population density

    結果表明：壽光市耕地變化的主導驅動力包括人均收入、牧業總產值比例、種植業總產值比例和農林牧漁業勞動力；曲周縣耕地變化的主導驅動力包括糧食單產、牧業總產值比例、種植業總產值比例、糧田面積佔耕地面積比例和人口密度。在此基礎上，揭示縣域尺度上耕地變化的驅動機制，並為進一步進行土地利用覆蓋變化研究積累方法和經驗。
  5. Dynamic response research of high earth - rock dam on the thick moraine cover foundation

    深厚覆蓋層上高土石壩的動力反應特性研究
  6. But variant rare earth element has different affections on the baths. the subjoining of rare earth enhanced the deposition rate and stability of baths. the cohesion of the matrix and the film and the surface quality are also improved

    但不同稀土元素對鍍覆工藝的影響不盡相同， re添加到鍍液中明顯提高了鍍液的沉積速率、穩定性、鍍層與基體的結合力和表面質量。
  7. There are many driving forces impacting land use and land cover change, while population is one of the most active driving forces

    影響土地利用/土地覆被變化的驅動因子有很多，其中人口是最具有活力的驅動力之一。
  8. Meanwhile, the study also shows that the diversity of studied cave animals is inversely proportional to human population density and water quality ; and bio - diversity, to some extent, is proportional to soil fertility and amount of chemical fertilizer, but inversely when excessive ; the correlativity between bio - diversity and vegetation cover rate is not obvious, when ground vegetation is strongly interfered by human being ; the amount of diestrammena marmorata is proportional to the d iversity of plant, and inversely proportional to soil fertility, and in a way, to water quality ; and the correlativity between community and water quality and soil fertility, and between water quality and the amount of mosquito and fly, is not as good as expected. the author points out that diestrammena marmorata, bat, mosquito, fly, oreolalaxrhohostig metus ( or cudata ), and fish can be chosen as in

    同時，研究還表明：調查洞穴的物種多樣性與人口密度、水質成負相關；在一定范圍內，物種多樣性與化肥施用量、土壤肥力成正相關，超過一定的值則成負相關;在人類對地表植被的高強度作用下，物種多樣性與植被覆蓋率的相關性不明顯;蚊蠅數量與土壤肥力基本上呈正相關;斑灶馬數量與植物種數呈正相關，斑灶馬數量與在一定水質范圍內與水質呈負相關，與土壤肥力呈負相關;群落數與水質和土壤肥力、蚊蠅數量與水質都不能表現較好的相關性;研究認為，可以選擇斑灶馬、蝙蝠、蚊蠅、紅點囊蟾（或有尾類） 、魚類等作為指示動物對洞穴環境進行監測。
  9. Could there exist another possibility for the south boundary of the system as follow : the rainfall infiltrates in the outcrop carbonate - mountain area of western, and moves towards south and deeper along carbonate rocks, then moves upper through the overlain tertiary system ( n ) with a thickness of 400m ( instead of running off to the springs and yellow river through a long approach of least hydraulic gradient ), and then mainly transforms into the horizontal drainage in the loess layer of quaternary, finally drains in lu - botan depres sion

    並且提出，關于對系統南界的認識，是否存在另一可能：即在西部碳酸鹽巖裸露區大氣降水入滲后，沿碳酸鹽巖向南向深部運動，然後，並非在極小的水力坡度驅動下長距離地向東部黃河、泉群徑流排泄，而是通過上覆厚度約400m的第三系向上運動，繼而主要在第四系黃土層中轉為向南水平排泄到鹵泊灘。
  10. In light of current using situation and drawing on the experience of many scholars researched methods and viewpoints, this thesis made com land, fallow land, orchard, grass land as experimental field in black soil region jlau, which carried out experiment by applying different amounts of n and p fertilization in corn field. by means of collecting the samples of rainfall runoff, erosion silt and surface layer soil before and after rainfall for one year nature precipitation in field, we study the effect of surface runoff on n and p nutrient and fertility degeneration. the results showed : ( l ) there are lots of factors which affect soil erosion and losses of n and p, in which rainfall and rainfall intensity were more important, while rainfall intensity is the most important meteorological phenomena factor

    針對當前黑土利用現狀，本文借鑒眾多學者的研究方法和觀點，在吉林農大黑土區選擇利用方式不同的玉米地、休閑地、果園、草地，在玉米區進行了不同數量的施肥，通過野外試驗，採集一年自然降雨產流及泥沙樣品，同時採集降雨前後的耕層土壤樣品，研究了黑土區地表徑流對氮磷養分特徵及肥力退化的影響，結果表明：土壤侵蝕和氮磷的流失受諸多因素的影響，降雨量、降雨強度是重要因子，而降雨強度是影響農田地表徑流養分流失的最重要的氣象因子，特別是暴雨，暴雨徑流中氮磷濃度較平時高得多；隨作物生長，覆蓋度逐漸增加以及不同利用方式下表現的覆蓋度差異，氮磷流失都表現為顯著的差異。
  11. The practice of eco - agriculture has brought about striking improvements in the agricultural ecological environment - - barren hills greened, forest acreage greatly raised, soil erosion controlled to some extent, organic matter content of the soil increased, and the ability of the agricultural ecological system to ward off natural disasters improved

    生態農業建設使農業生態環境得到明顯改善，荒山荒坡得到綠化，森林覆蓋率大幅度提高，水土流失有所控制，土壤有機質含量提高，農業生態系統抗災能力有所增強。
  12. Currently, study on global change and terrestrial ecosystem ( gcte ) and land - use and cover change ( lucc ) become the core item and the important direction, and become the most complicated and vitally research contents in global change research

    當前， 「全球氣候變化與陸地生態系統」 （ gcte ）和「土地利用/土地覆蓋變化（ lucc ） 」成為全球變化研究的核心項目和重要方向，並成為全球變化中最復雜、最具活力的研究內容。
  13. Test method for half - cell potentials of uncoated reinforcing steel in concrete

    混凝土中未塗覆的預應力鋼筋的半電池電勢的試驗方法
  14. On the first day, when, getting up early in the morning, he came out of the shed into the dawn, and saw the cupolas and the crosses of the new monastery of the virgin, all still in darkness, saw the hoar frost on the long grass, saw the slopes of the sparrow hills and the wood - clad banks of the encircling river vanishing into the purple distance, when he felt the contact of the fresh air and heard the sounds of the rooks crying out of moscow across the fields, and when flashes of light suddenly gleamed out of the east and the suns rim floated triumphantly up from behind a cloud, and cupolas and crosses and hoar frost and the horizon and the river were all sparkling in the glad light, pierre felt a new feeling of joy and vigour in life such as he had never experienced before

    第一天，他一大早就起了床，走出棚子，頭一眼就看見新聖母修道院開始還發暗的圓屋頂和十字架，看見覆蓋著塵土的草上的寒露，看見麻雀山的丘陵，看見隱沒在淡紫色遠方的，長滿了樹木的，蜿蜒著的河岸，他覺得空氣清新，沁人肺腑，可以聽到從莫斯科飛越田野的烏鴉的啼叫聲，一會兒，在東方天際邊，突然噴射出萬道霞光，一輪紅日從雲層里漸漸顯露出來。於是，圓屋頂，十字架露水遠方和那條小河所有這一切都在陽光下閃爍，這時，皮埃爾感覺到一種從來都沒有經歷過的，全新的，生活的喜悅和力量。
  15. According to the idiographic complexion of our country, the article elucidated the connotation of conservation tillage : it ' s a technology of tillage with minimum tillage or no - tillage so as to reduce the soil ' s disturbing, using stalk cover the field so as to decrease laboring and tillage ' s cost, preventing wind & water erosion, and improving the fertility of soil and the ability of fight a drought

    摘要根據保護性耕作在我國的實施情況並結合國外已有研究結果，我們認為保護性耕作的內涵為：保護性耕作措施就是對農田實行少耕或免耕，盡可能減少對土壤的擾動，並以秸稈覆蓋地表，達到減少勞動強度和生產投入，防止農田風蝕和水蝕並提高土壤肥力和抗旱能力的一種農田耕作技術。
  16. The thermal crack problem of the mass concrete is very complicated, and correlative with structure, building material, construction, rock, circumstance, and so on. now, in the construction field, the research on the mass concrete used during hydraulic construction is more frequent than the others, white the research on the comparatively small mass concrete used in the normal buildings is not deep enough and comprehensive, the covering area in the related codes are limited and narrow. many problems in construction practice have to be solved by the experience, rather than by theory. this phenomenon leads to much unnecessary waste of labor, material and financial resources, also the quality is unsatisfactory

    建設領域目前對水工建築中所使用的大體積混凝土（巨型混凝土結構）研究較多，而對普通建築中所使用的體積相對要小很多的大體積混凝土（相當于中體積混凝土）的研究卻還不夠深入、全面，相關的規范條文覆蓋面還不夠完善，對很多工程實踐中的問題只能依靠經驗處理，缺乏適當的理論依據，這使得在工程實踐中造成許多不必要的人力、物力、財力的浪費，大體積混凝土施工質量控制的結果也不很理想。
  17. In the simulation and analysis on culvert construction, the method of foundation - pit excavation layer by layer and step by step was used, i. e. the method that makes the surface of excavation have no stress, when the elements were excavated gradually in period of construction. at this process, the state of soil is unloading, the laws of stress field and displacement field with the depth of excavation were studied. based on the obtained stress field and displacement field after the excavation was completed, by using of the newly increased filling - elements " gravity and the grinding force, the simulation of the construction of body of the culvert and foundation - pit ' s filling layer by layer had also been done in this dissertation

    用有限元法模擬分析涵洞基坑開挖時，採用分層、分步模擬開挖過程的方法，即將計算域內單元分層「挖去」 ，使開挖表面成為無應力表面的方法，分析土體在卸載狀態時的應力場和位移場隨開挖深度的變化規律；在洞體施工后，回填土體時，據開挖完成時的應力場、位移場，通過逐級增加計算域內的單元數目，施加每級新增加單元的自重荷載，利用有限元法模擬基坑及上覆土體分層填築的施工過程，這不僅反映土體處于再加載應力狀態時，填土受力及變形的一般規律，而且這種將地基? ?涵洞? ?土體作為一個統一整體進行模擬的方法，量化了三者之間的相互作用關系。
  18. Through shaking table test, in this paper the rule of the underground structure reaction to earthquake is summarized and the distortion of the structure and the mechanism of wreck are analyzed, especially the effect of overburden and the vertical earthquake to underground structure are studied

    摘要文章通過振動臺試驗，總結了地下結構地震反應規律，分析地下結構的變形機制，並重點分析上覆土層和豎向荷載對地下結構動力性態的影響。
  19. Using the finite element method ( fem ), the simulation and analysis on this construction process were carried on, and the different stress state of soil at different construction period was rendered. and the influence of different stress paths ( foundation excavation - unloading & excavation filling - reloading ) on the stress and the displacement was also reflected and researched. the law of non - linear constitutes of soil was presented in the simulation and analysis

    模擬分析再現了土體的非線性本構關系，得到了基坑開挖時土體變形和應力變化的一般規律；在基坑及上覆土體回填時，通過分層填築的有限元模擬和地基、涵洞、土體三者相互作用的有限元分析，得到施工結束太原理工大學碩士學位論文時的位移場和應力場，同時求得涵洞的結構內力。
  20. The whole procedure of construction, including foundation - pit excavation, the body construction and foundation - pit filling, was simulated and analyzed by using elastic - plastic fem procedure programmed by myself. and the laws of stress field and displacement field were obtained

    本文通過研編彈塑性有限元程序，模擬並分析了涵洞施工全過程（包括：基坑開挖、涵洞主體施工、基坑及上覆土體回填）中計算域土體變形和應力的變化規律。
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