destruction of soil 中文意思是什麼

destruction of soil 解釋
土壤破壞作用
  • destruction : n. 1. 破壞；滅亡；消滅，撲滅，驅除。2. 毀滅的原因；破壞手段。n. -ist 破壞分子；破壞主義者。
  • of : OF ＝Old French 古法語。
  • soil : n 1 泥土，土壤；土質。2 土地，國土。3 滋生地，溫床。4 農業生活，務農。n 1 臟東西，污物，污穢，污...
  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. So these karst series problems are lowness ability of making soils, distributing odds of surface water and groundwater, leakiness of fountain, alkalescence of circumstance, lowness of bio - diversity, rapidness converse succession of vegetation and fragility of soil character and entironment. and karst region produces many problems, e. g. rock desert, soil erosion and degeneration because of artificial influence and destruction

    巖溶空間介質具有地上地下雙層結構，可溶巖造壤能力低，巖溶水空間分佈不均、地表地下水關系密切、水源易漏失，偏堿性環境、生物資源集聚程度低，植被逆向演替快、順向演替難，巖溶地質與生態環境十分脆弱，受到人為因素的影響和破壞，極易產生石漠化、土壤侵蝕與退化等一系列問題。
  3. Large-scale consolidation and compaction of soil were responsible for a major part of the destruction.

    大部分破壞都是由於土壤的大規模固結和壓密所造成的。
  4. The humankind is troubled seriously by a series of environmental problems, such as air pollution, ozonosphere destruction, glasshouse effect, acid rain, water pollution, land pollution and soil erosion and so on. all of these will stop our economy developing

    大氣污染、臭氧層破壞、溫室效應、酸雨頻繁、水污染、土地污染、水土流失、草原退化、森林急劇減少、珍稀動植物滅絕、沙漠急劇擴大等一系列環境問題嚴重困擾著人類，各種公害接二連三地侵襲人類，再這樣下去，經濟將變成無源之水、無本之木。
  5. Some beneficial results of the csnw ' s behaviors are gotten. main research contents as follows : ( 1 ) the four destruction models and respective stability analysis methods are discribed in this paper, whose working mechnism and calculating methods are given. in addition, some defects of every method are also discussed ; ( 2 ) on the basis of traditional active soil pressure method and expirical siol pressure method, the calculating model of the laternal earth pressure which is a tetragon with the largest value in the center side is addressed

    主要工作如下： （ 1 ）本文給出了復合土釘墻的穩定性分析方法，該方法介紹了復合土釘墻的四種破壞類型，分析了每種破壞類型的受力機理，並給出了相應的計算方法和計算方法中的一些不足； （ 2 ）在傳統的主動土壓力和經驗土壓力的基礎上，建立了土釘墻中間大、上下小的四邊形狀分佈的側向土壓力的計算模式。
  6. Based on the research works of predecessor, the theory on the displacement of soil strata in deep foundation excavation construction and its application are studied in detail. by analysing the supervision, statistics from, the practical excavation engineering, soil rheology is thought to be the main reason of the displacement heavy of the soft soil and the destruction of the enclosure structure, in deep foundation excavation construction on condition of the high theriomorphic of enclosure structure and good seepage resitting

    本文在已有研究成果的基礎上，對大面積軟土深基坑開挖時土層變位理論及應用進行了探討：依據現場監測數據，推導出開挖時軟土變形的經驗公式，分析了軟土深基開挖在圍護結構剛度大、基坑防滲效果好的條件下，基坑土層變位、圍護結構受力破壞發展的主要原因。
  7. The rule of loads and settlement is concluded from numbers of settlement observation points ’ data. and in actual construction, this rule could be used to prevent immediate settlement under the accelerated load, and also, the serious result of the soil destruction could be avoided. at last, a proper method of settlement computing is derived from the identified rules, which can be used to guide the practical construction work, of course, meeting the compulsory standards of the settlement control well

    採用逆作法施工，現實地解決了樁、土與筏板接觸面的變形協調關系;通過對樁、土受荷過程的實際測試，得出了樁、土分擔荷載比例和變化過程，從而為樁、土的荷載計算提供實際依據;從設置的大量沉降觀測點中所得到的沉降資料，得出荷載、沉降變化規律，從而指導在實際施工中，防止加載過快而導致速沉，避免由此帶來的土體破壞的嚴重後果;通過沉降規律分析，得出了適用於軟土地區的樁基沉降計算方法，用於指導實際施工，以滿足沉降控制的強制性標準。
  8. Generally, karst rock desertification refers to the evolving process that leads to intense human - land conflict, destruction of vegetation, soil erosion, bare rock, failing productive forces of the land and the land surface appearing as desert from visual sense, because of the frail ecological environment formed by karst, and of the irrational social and economic activities of human beings

    喀斯特石漠化指在喀斯特脆弱生態環境下，人類不合理的社會經濟活動，造成人地矛盾突出、植被破壞、水土流失、巖石逐漸裸露、土地生產力衰退喪失，地表在視覺上呈現類似於荒漠景觀的演變過程。
  9. The organic matter influenced > 0. 25 mm soil particle aggregation and > 0. 5 mm water - stable soil particle aggregation slightly and played an important role in the aggregation of > 5 mm water - stable soil particles. the percentage of aggregates destruction were remarkably negatively related with content of > 5 mm water - stable soil particle aggregate, and ultimately negatively related with > 0. 25 mm water - stable soil particle aggregate, which meant the content of water - stable soil particle aggregate dropped as the rise of percentage of aggregates destruction, the loosely fe took a role in increasing content of water - stable soil particle aggregate. the main factor that affecting content of > 0. 5 mm water - stable soil particle aggregate was percentage of aggregates destruction, whereas organic matter and percentage of aggregates destruction were the dominating matters that influencing content of > 0. 25 mm water - stable soil particl

    粘粒含量在各級團聚體的形成過程中起著一定的作用；有機質對0 . 25mm團聚體、 5mm水穩定性團聚體有一定作用，對0 . 25mm水穩定性團聚體起顯著作用；團聚體結構破壞率與5mm水穩定性團聚體成顯著負相關，與0 . 25mm水穩定性團聚體達到極顯著負相關，說明結構破壞率越大，水穩定性團聚體的數量就越少，反之越多；游離鐵含量對促進水穩定性團聚體方面起一定的作用，影響0 . 5mm水穩性團聚體含量主要是結構破壞率，而影響0 . 25mm水穩定性團聚體含量的是有機質和結構破壞率。
  10. However, immersed tunnels are generally build in soft soil shallowly and affected greatly by the earthquake. in view of its importance and underwater particularity, the destruction of immersed tunnels will be disastrous. accordingly, it is necessary to carry out earthquake - resistant research of immersed tunnels

    然而，沉管隧道一般修建在軟弱地層中，埋置淺，受地震影響大，同時由於沉管隧道的重要性及在水下的特殊性，一旦破壞將產生災難性後果，因此，對沉管隧道進行抗震研究是十分必要的。
  11. This paper introduces the limit - destruction theory to study and analyze the function - mechanism of sand cushion in the collective function of the piles and the earth, and then brings forward the regulating - equation of the stress ratio between the up - pile - soil and the top of pile concerning the sand cushion. its final calculating result basically tallies with the practical function conditions. this provides an alternative approach to the study of sand cushion

    4在復合地基樁、土共同作用中，墊層的作用和機理，本文引入極限破壞理論對砂墊層作用機理進行分析研究，提出砂墊層的樁頂樁土應力比協調方程，其計算結果與實際作用情況較吻合，為砂墊層研究提供了一種思路。
  12. The carrying capacity of water resources and water environment in yellow river basin is faced with a huge challenge, such as vegetation destruction, water and soil erosion, riverbed run - up, watercourse shrinkage, water shortage, frequency breakage flow, severity pollution, water quality deterioration, trace to the source and sendiment, coast erosion and regradation

    植被破壞、水土流失，河床抬高、河道萎縮，水源匱乏、頻繁斷流，污染嚴重、水質下降，朔源淤積、海岸蝕退等表明黃河流域水資源與水環境的承載能力面臨著極大的挑戰。
  13. Pollutants content limitation in soil for destruction of chemical weapons abandoned by japan in china

    銷毀日本遺棄在華化學武器環境土壤中污染物含量標準
  14. The aspiration of these rogue nations to obtain weapons of mass destruction is set against the backdrop of the disintegration of the former soviet union. this disintegration meant that instead of one nuclear empire, we were left with four new states, each with nuclear weapons on their soil : russia, kazakstan, ukraine, and belarus

    試想像你若是個二十來歲的年輕父母，帶著年幼的孩子住在低收入戶住宅里，做時薪五美元的微薄工作，沒有健康保險，每天走在路上卻看到所賺的錢是你的一百倍之多的毒販，請問你做何感想？
  15. 2. the concept design is the key phase of the first stage of system optimization. the paper emphatically discusses with emphasis several issues difficulty to answer, such as the determination of the soil parameters, the soil pressure and the safety factor and the reliability of retaining structure, summaries and analyses the main geotechnical problems during the excavation on the four familiar geologic strata of saturation soft soil on the class i terrace of the yangtze river, aged - clay, expansive soil and loess and investigates carefully the patterns of deformation and destruction of pit slope in the saturation soft soil, puts forward three basic principles of selecting schemes of retaining structure, namely : facing to the problem, facing to the characteristics of excavation and environment

    （ 2 ）概念設計是深基坑工程第一步優化? ?系統（方案）優化設計中的關鍵，文中重點討論了概念設計中的幾個難點問題，如土性參數的確定、土壓力的選取、深基坑工程的安全度和可靠度分析等；總結分析了飽和軟土、老粘性、膨脹土和黃土這四類常見地層條件下的深基坑工程中的主要巖土工程問題，其中重點研究了長江級階地上的飽和軟土深基坑邊坡變形和破壞模式，提出了選擇支護方案的基本原則，即：面向問題、面向基坑特點、面向周邊環境特點。
  16. This paper derives the fundamental equation of differential callus of the load transmission in the system of pile and soil when a single pile is vertically loaded ; moreover it answers some typical cases of destruction. some theories of the bearing capacity of a single pile under vertical loading and some ways of making certain of it are generalized and summarized. concerning a practical engineering, they are specif ically utilized

    本文系統闡述了樁基礎的類型及特點，在前人研究的基礎上導出了單樁在豎向荷載作用下樁土體系荷載傳遞的基本微分方程，通過分析影響荷載傳遞的因素入手，對單樁的幾種典型破壞模式進行了分析總結，並以由於地基土強度破壞而導致的樁基破壞模式為重點，推導其荷載傳遞曲線，進而用高等數學結合土力學方法推求樁土之間用深度和位移表達的荷載傳遞的微分方程。
  17. Based on analysis of the domestic and foreign data, using the finite element method, this paper probe into the bearing capacity and deformation of the composite soil nailed wall. then some results are gotten, as follows : the composition and construction of the composite soil nailed wall are analyzed, and the engineering characteristics of the typical construction wall are valued. the destruction forms of the composite soil nailed wall are summed up

    本文在分析國內外土釘墻技術資料及進行有限元模擬的基礎上，對復合土釘墻的承載機理和受力變形進行了較為深入的研究，得出了以下結論：分析了復合土釘墻的組成、構造形式，並對其典型構造形式的工程特性進行了評價。
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