黃土類的 的英文怎麼說
中文拼音 [huángtǔlèide]
黃土類的
英文
loessial-
In view of the natural conditions in loess area of gansu, in the light of investigation conditions of seepage of built loess and weak rock highway tunnels in this area and classification of water gushing conditions for railway tunnels, and by engineering analogism, the classification of tunnel water gushing types suited the structure design of highway tunnel waterproof and drainage, and the three methods for checking and subdividing water gushing types are presented
摘要針對甘肅黃土區的自然條件，依據該地區已建黃土及軟巖公路隧道滲漏水調查情況和鐵路隨道涌水狀態分類，運用工程類比法提出適合該地區公路隧道防排水結構設計的隧道涌水類型劃分及對涌水類型校核與細分的三種方法。Caco3 not only affects soil physical and chemical characteristics but also causes co2 change in the air, because caco3 is main components among the total pool of inorganic carbon of soil. this paper systematically summarized and analyzed general development characteristics of soil profile caco3 in loess hill gully area including source, content, forming - condition, distribution and illuviation - depth of caco3, which will have the most important significance for the further studies on global soil and climate change
碳酸鈣在土壤剖面中淀積的深度和類型是黃土高原土壤發育的重要標志，鈣積層是黃土高原土壤發育環境的歷史信息庫，同時土壤碳酸鈣作為土壤無機碳庫重要組成，它通過溶蝕后再結晶與大氣co _ 2之間進行物質交流來影響全球氣候變化。The area of sienna in 1997 decreased 103271. 9 hectares than that in 1987, decreased 82. 15 % than before
變化最小的類型為河流，變化最大的為黃土區域， 1997年的黃土區面積比1987年減少103271 . 9公頃，比原來減少82 . 15 。Because all the stratal configuration in loess ravine region are similar totally, the numerical model in this paper can be modified to suit for other section
由於黃土溝壑區濕軟地基的地層結構較為類似，依據文中的數值模型可修改相應參數後用于其他相似斷面，為地基處理方案的設計和施工提供依據。In this paper, mainly based on arranging data with well pumping tests in dam foundation and sum up the laws of flows under the condition of deep well pumping, the useful dewatering calculation model and parameters were set up. secondly, based on the well constructing technique which was discovered under the condition of in - situ bumping test and calculating the dewatering scheme of the two dewatering units with the calculation model, the final dewatering scheme was put forward. at last, the final dewatering scheme was appraised by observation during the construction, and it satisfied with the construction request
本文主要通過壩基現場抽水試驗試驗資料整理，在揭示黃土壩基降水特性規律的基礎上，確定可以反映現場抽水條件的的實用降水計算模型和參數；再根據現場抽水條件試驗開發的成井技術和計算模型計算壩基和壩肩兩個水文地質單元的降水井方案，並按工程類比法確定最終的降水方案；最後，通過施工過程中的觀測情況對降水方案進行評價，降水方案能夠很好地滿足施工的要求。( 2 ) there is stage of soil formation from the evolution of pedogenic environment in the weihe valley during holocene. soil formation shows the law of evolving from warm and wet strong soil formation period to cold and dry dust deposition period ( weak soil formation period ) and to warm and wet strong soil formation period again. the loess - soil sequence is a compound soil sectional system of different kinds of soil evolution under different bio - environment and pedogenic processes
（ 2 ）通過對全新世渭河流域成壤環境演變問題的討論，揭示了全新世渭河流域土壤的發育具有階段性，表現為由溫濕的強成壤期向冷乾的沉積期（弱成壤期）演變、再向溫濕的強成壤期演變的規律；黃土一古土壤序列是不同生物氣候環境下、不同成壤過程發育的不同土壤類型演替而形成的復合型土壤剖面體系；而且由於冬夏季風環流及其環境效應在空間上的差異，使得復合型土壤剖面體系也存在著南北差異。It decides the protective objectives for different ecological reserve area based on the study of channel wetlands and survey and analysis of top - grade species ( fishes ) of the yellow river : from the point of the basin, the main ecological protective objectives of the tipper stream are vegetation and forest for conservation of water supply ; soil and water conservation is the main in the middle reaches for vegetation protection and rehabilitation and ; the lower reaches takes types of wetlands protection and wetlands area maintenance as the main, protecting biodiversity and important birds resources
在黃河河道濕地研究和黃河水體內頂級物種（魚類）的調查分析基礎上，確定了黃河不同類型生態保護區的生態保護目標：從流域角度而言，黃河上游的主要生態保護目標是植被和水源涵養林；中游應以水土保持為主，主要是恢復和保護植被；下游以保護濕地類型和維持濕地面積為重點，保護生物多樣性和重要鳥類資源。Applying the basic theories of spatial data mining and geomorphology, taking the loess plateau of north shaanxi province, china as the research area, this dissertation explored the theories and systematic structures of geomorphologic data mining and acknowledge discovery from dems, ascertained the systematic structures of topographic factors and synthetic topographic acknowledge, as well as systemically summarized mining algorithms from dems. the author pa id more attention also to analyze the principle and algorithm of flow length, curvature, relief, the earth ' s surface incision and gully density. in this research, the elementary constitutes and mining algorithms of regional character acknowledge in the loess plateau were probed
本研究在廣泛總結前人研究成果與研究經驗的基礎上，利用空間數據挖掘和地形地貌學的基本理論，以陜北黃土高原多地貌類型區為實驗樣區，以1 10000比例尺dem為樣本數據，探討了dem中地形地貌數據挖掘與知識發現的理論方法和體系結構；確定了宏觀和微觀地形因子、地形綜合特徵知識的體系結構；系統總結了dem基本地形因子的提取演算法，並重點對坡長、曲率、地形的起伏度、切割深度和溝壑密度因子提取的原理與演算法作了深入的分析；提出了黃土高原地區區域特徵知識的基本構成及其系統完整、科學可行的挖掘提取演算法；擴充了arcviewgis軟體平臺中dem空間分析的基本功能；實現了以delphi7 . 0為平臺的地形信息輔助挖掘系統的設計與開發；完成了對黃土高原多地貌類型區（樣區）地形信息空間分異特徵的分析。The mechanism about seed actual reproduction and artificial restoration under disturbance was investigated by using systematic sampling in the typical area of reaumuria soongorica population at mid - young age in desert grassland region, according to two similar habitate involved five different disturbance characteristics
摘要2003年7 10月，選擇黃土丘陵區荒漠草原地帶兩個相似生境、 5個不同干擾特徵的中幼齡紅砂種群更新恢復類型區為研究物件，採用系統取樣法或樣行法，開展了干擾條件下的紅砂種群種子更新與恢復機理的初步研究。In this part, the author expands the concnet research about the riverside towns of mounts and valleys on loess plateau, and together with their patterns and landscape problems including the concnet expansions of the divisions of riverside towns of mounts and valleys on loess plateau styles researching ; the definition of landscape ecological palatial scope ; the division of landscape components and their ecological effects ; the foundation evolution of riverside towns of mounts and valleys on loess plateau ; landscape analysis ; and the research to consent problems
該篇主要針對黃土高原「川穀型」濱河城鎮及其濱水區的形態及景觀問題展開具體的研究。包括黃土高原「川穀型」濱河城鎮的分佈、類型化研究、景觀生態空間范圍的界定、景觀構成要素的分佈及生態作用、黃土高原「川穀型」濱河城鎮濱水區的功能演進、景觀分析、問題研究等方面的具體展開。The collapsible loess is often met during the construction of the high - grade highway in the loess area, and the main failure is the uneven subsidence of the roadbed and the culvert, which affects the safe usage of the roadbed and the culvert, etc. directed against this, based on the chankou - lanzhou freeway construction, the paper analyzes the application of the composite ground formed by lime - soil pile under the bridge and designs the project, discusses the rules of the contact pressure, the stress ratio of the pile and the soil, compares the p - s curves of one pile, the composite ground formed by one pile and the composite ground formed by two piles based on the in - situ plate loading test, evaluates the bearing capacity of the composite ground of the project
黃土地區的高等級公路建設中經常遇到濕陷性黃土問題，其病害類型主要是地基土受水浸濕后引起路基、橋臺、涵洞等的不均勻沉降，直接影響路基、構造物等的正常使用。針對此問題，本文依託甘肅讒口至蘭州柳溝河高速公路建設工程，對橋基灰土樁復合地基應用的可行性進行了深入分析，根據具體工程進行了合理的設計與計算，並配合現場靜載荷試驗及壓力盒實測數據，探討了基底應力分佈規律，樁土應力比，變形模量的變化關系，對比分析了單樁、單樁復合和雙樁復合的p ? s關系，對橋基灰土樁復合地基承載力進行了整體評價。Grounded on analysis of the interior factors ( such as valley - side slope structure, stratum structure, fissure without displacement, loess microstructure and shearing strength, etc. ) and exterior factors such as rainfall, earthquake and so on, it is proved that human ' s cutting a terrace of building houses in the loess slope is the main factor of inducement of the landfall
對谷坡結構、地層結構、節理、黃土的顯微結構特徵、黃土抗剪強度等內部因素和人為斬坡、降雨、溫差等外部因素進行了定性分析。結果表明人為斬坡平基建窯是導致此類崩塌的主導因素。Furthermore, corresponding countermeasures were put forward. 4. seven types of soil, yellow soil, purple soil, red soil, limestone soil, and alluvial soil and paddy soil are scattered in this district
該區有黃壤土、紫泥土、紅壤土、黃棕壤土、石灰巖土、沖積土、水稻土等7個土類，其中黃壤占總面積的80以上。In order to select proper ground improvement method for this kind of special soil, the flac numerical software was used to analyze the stress train when treated by different methods
為合理選擇該類型軟土的地基處理方案，結合實際工程，運用flac數值分析軟體對濕軟黃土地基不同處理情況下的應力應變進行了模擬，得出合理結論。We study the regular of soil water contents in 11 years artificial locust woodland. the results showed that soil water contents are semi - shady > sunny > semi - sunny. so we can draw the conclusion that the reason of differential productivity of artificial locust woodland in different site types is soil water content rather than soil nutrients
對11年人工刺槐林土壤含水量變化規律的研究表明，三個立地類型的刺槐林土壤含水量差異顯著，其土壤含水量從大到小的順序為：半陰坡半陽坡陽坡，因此就可以斷定，在黃土高原現有的土壤養分背景下，引起不同立地類型生產力差異的主要原因不是土壤養分，土壤含水量是引起黃土高原人工刺槐林生產力差異的主要原因。The unconformability between the loess landform of shaanbei loess plateau and its bedrock shape was pointed out first after the full demonstration. the top of loess formation of the south part in shaanbei is flat which likes " platform ", the shape of the bedrock is rolling that likes ridge, and the bedrock bended to fold. the top of loess formation of the mid - part in shaanbei is rolling, but the shape of the bedrock below begins to get flat, the top of loess formation of the north part in shaanbei, loess mao district, is much more rolling among them, however, its shape of the bedrock below is the flattest relatively likes the platform shape of loess formation in south
具體地講，陜北高原南部的洛） 11黃土源，黃上層頂部相對平坦，地貌類型以黃土源為主格調，而其下伏基巖地層詔皺相對發育，古地勢起伏相對較大：陜北高原中部的延安一安塞黃土梁狀（為主）丘陵溝壑區，黃土層頂部起伏相對增大，地貌類型以黃土梁為主格調，而其下伏基巖地層槽皺程度趨弱，地層較平緩，古地勢起伏相對降低；陜北高原北部的綏德一子洲黃土赤狀（為主）丘陵溝壑區，黃土層頂部起伏度相對最大，地貌類型以黃上赤為主格調，而其下伏基底地層以平緩為特徵，古地勢起伏強度亦相對較低。Including the main body of the subgrade, protecting and supporting engineering. drainage equipment of road, culvert and the transition zone between the road and the bridge. through investigating the types of diseases, the author discusses the existing problems and causes of producing diseases, puts forward the protective measures in design and construction, and raises the treatment measures in highway maintenance, which makes it more scientific and perfect for highway construction and maintenance in the loess areas
論文首先對黃土的工程特性及其影響因素進行了分析，然後對黃土地區路基病害及其防治技術進行了研究，具體包括路基主體、防護與支擋工程、公路排水設施、涵洞及路橋過波段等部分，對病害類型進行了調查，分析了使用中存在的問題與病害產生的原因，提出了在設計與施工中應採取的防範措施，給出了養護中的處治對策，使我國黃士地區公路建設與養護更加科學和完善。Due to irrational land utilization, absurd assarting and herding, a series of environmental problems, such as sandy soil, grassland degeneration, soil and water loss, appeared, which severely threatened to survival and development of human being. it was proved that biomic - measure was the radical measure of ecology environment construction and harnessing. thus, a research on choosing a kind of grass, which was good, stronger stress resistance and faster growth velocity, was carried out
黃土高原半乾旱區多年來由於不合理的土地利用和濫墾濫牧等現象，致使土壤沙化，草地退化，水土流失等一系列生態環境問題嚴重威脅著人類的生存與發展，多年的研究已證明，生物措施是生態環境建設與治理的根本性措施，因此，針對目前的自然現狀，選擇抗逆性強、生長快、生產中急需的優良牧草進行了定位試驗研究。As there are less such materials in loess as fossil, plants, slag, etc, which could be used for dating, luminescence dating, especially optically stimulated luminescence dating, was extensively applied to aeolian deposits, for its dating materials were minerals, such as quartz and feldspar
由於黃土中所含的化石、木質、炭屑等適于其它方法測年的物質很少，同時，全新世黃土受年輕有機碳和無機碳的影響較大，致使全新世黃土類沉積物的測年迄今仍缺少理想方法。In accordance with peculiarity of earth ' s surface being covered by thick soil layer, the stratum in north - west mining area, are classed as rock layer and soil layer, and the mathematic model of predicting surface movement is established according to the stochastic medium theory, the method for solving mathematic model and setting - out the parameters in prediction are developed
摘要針對西北礦區地表為巨厚黃土層的特性，將上覆地層分為巖層和土層兩種不同介質，應用隨機介質理論建立此類礦區地表移動預計的數學模型，並提出模型的解算方法及預計參數的確定方法。分享友人