plasticity of soil 中文意思是什麼

plasticity of soil 解釋
土壤塑性
  • plasticity : n. 1. 黏性；可塑性；柔順性。2. 適應性。3. 【物理學】塑性學。
  • 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. In ported trials, wu gave the minimum tr of all plants, and its diurnal maximum tr persisted stability the most within the range of soil moisture 20. 4 % - 6. 4 %. ; nx lowered its tr and shrank its high - low lines after had experienced irregular wet - drought hardening period during culturing ; kerqin performed a plasticity as compared to field ; c. lanata also stood the most stability but on the basis of middle - high maximum tr level ; tr by caragana korshinski was high when soil water was abundant, but was lowest for lack of water ( 6. 4 % )

    盆栽試驗表明，華北駝絨藜蒸騰最弱，且在土壤含水量20 . 4 6 . 4的范圍內最高蒸騰速率穩定性最強；經脅迫鍛煉寧夏駝絨藜蒸騰降低，變幅減小；科爾沁駝絨藜與大田相比蒸騰可塑性較強；土壤水分變化中，北美駝絨藜蒸騰在中高水平上維持穩定的能力最強；水分良好時檸條蒸騰很強，水分脅迫中蒸騰極大降低。
  2. Expansive soil is one kind of high plasticity clay which may bring civil engineering heavy damage. it may make construction, especially the engineering of high - type roadbed, appear failure deformation. it is a kind of long - term latent danger to people ' s life

    膨脹土是一種會給工程帶來嚴重破壞的高塑性粘土，特別是對高等級公路路基工程和大型結構物所產生的變形破壞作用，往往具有長期、潛在的危險。
  3. And the plasticity of height, crown amplitude, leaves morphology, leaf number, allocation of biomass ( including : lmr, rmr and shoot / root ratio ) and lar were low to soil water for all three species. 5

    而株高、冠幅、葉片形態、葉片數目、生物量在器官間的分配（包括： lmr 、 rmr和根冠比）和lar對土壤水分的可塑性均較小。
  4. The result shows that the plasticity index and the compression coefficient of the northern inshore saline soil reduce with the increase of the salt content, and the shear strength attains a limit value with the increase of the salt content

    結果表明，北方濱海地區鹽漬土的塑性指標、壓縮系數隨含鹽量的增加而降低，抗剪強度隨含鹽量增加出現一含鹽量界限值。
  5. The paper studied the growth of endangered plant changium smyrnioides wolff and its comparison plant anthriscus sylvestri ( l. ) hoffm and chuanminshen violacewn in different soil water from physioecology and analyzed the effect resulted of soil water and the difference of model and size of plasticity of three species

    本文從生理生態學的角度研究了瀕危植物明黨參及對照植物峨參和川明參在不同土壤水分條件下的生長，探討水分對三物種生長的影響及植物的可塑性響應方式。
  6. We analyzed the alternative in functional phenotypic plasticity responding to variational entironments, consequently, we interpreted the difference between endangerment and wide - distribution of these closely related species, and the results showed : 1 all of the daily changes of photosynthetic rate responding to different water status show " double apices " except m. d, the daily changes of photosynthetic rate in m. d shows " simple apices " responding to arid soil water content, while " double apices " responding to the other soil water content. emerging time of daily maxim of pn is difference between species and between treatments. daily course of transpiration and stomatal conductance of these for species all show " double apices ", but the emerging time of daily maxim of transpiration rate and stomatal conductance rate are all different between species

    結果表明： 1 、除小魚仙草外，四物種的光合速率日變化在不同水分梯度下均表現出「雙峰型」 ，小魚仙草的光合速率日變化在於旱時表現出「單峰型」 ，其餘水分梯度下表現出「雙峰型」 ，種間和梯度間日最大光合速率出現時間有一定的差異；四物種蒸騰速率和氣孔傳導力日進程也表現出「雙峰型」 ，但種間日最大氣孔傳導力和蒸騰速率出現的時間也存在一定的差異。
  7. Based on the method of limitation analysis of soil plasticity, researching from the soil arching mechanism of soil - nailing retaining, the upper limit of the critical height of soil - nailing slopes and the minimum horizontal length from coping of the potential slide surface to the edge of deep excavation are obtained through the analysis to weight of soil and vertical loading and the mechanism of soil and soli - nailing acting reciprocally

    摘要基於土的塑性極限分析方法，以均質土坡為例，從土釘支護結構的準粘聚力理論出發，綜合考慮土體自重、坡頂的條形荷載，以及土釘與土體的相互作用的機理，推導出了土釘支護的臨界高度的上限值和潛在螺旋曲線滑動面在坡頂方向距基坑邊沿的最小水平距離解析表達式，可供基抗支護設計參考。
  8. Researching on the technology if reverse order is to study strains if pits, structural systems if basement, environmental surwey and underpinnings. on account of emphasizing developing methods if checking strength if pick - ets, modemizing machenes of excavation and studying methods of underpinning is put forward and is a way if controlling the quality of pickets in sites, which leads an active effect ; synthetic application if rankintheory, spatial and time effect theory to excavation tl aanalyze the state of soil force and strain is brought forward and the time effect should be considered in the zone of clay, the formation and development of soil plasticity are analyzed and the most dangerous zone to decide how to excavate and where to begin is found ; analyzing the cause of picket settlement during reverse order and the differential settlement and discussing hlw to solute it. duringh the temporary survey and the environmental warship, bringing rorward the theory of environmental vibration and analyzing the state of soil force and probability of losing stabilization of soil under the effect of environmental vibration ; analyzing the state offeree in underground concrete wall by the method of mathematics and pointing out the place of the maximum force and deformation. based on systematic illustrating the reverse order, problems about application and development of reverse order and suggestions also are expressed

    鑒于國內外的研究把重點放在大力發展工程樁的實驗室承載力監測方法與設備、如何使土方開挖機械現代化及對周圍建築的臨測方法上，本文提出了現場利用聲波層析成像技術監測鋼砼樁內部質量的方法與程序，並得出了聲波層析成像技術是砼樁的動態質量檢測的有效手段，這對指導施有積極、現實意義；提出了綜合運用朗肯土壓力理論、基坑空間和時間效應影響理論來分析逆作法施工過程中基坑邊坡土體應力及應變的變化情況，指出粘土地區也應考慮時間效應，並且進一步分析了基坑邊坡土體的塑性區形成和發展，找出邊坡最不利的區域，以確定地下室土體的挖掘的方式和順序，指出憑主觀臆斷與經驗來施工是不可取的；在分析、經較逆作法與大開挖順作法的地下室結構體系受力情況及施工順序的不同，提出了節點處理技術；分析了逆作法施工期間樁的沉降變化原因及由此而產生的差異，並探討了解決的方法；本文還提出了環境振動對土體邊坡穩定產生影響的觀點，並分析了在環境振動影響下，土體的應力狀態及土休失穩破壞概率，並且還運用彈性力學知識和數學分析的方法定量地分析了地下混凝土墻受力狀態，指出了被監測墻體的最大應力、應變位置。
  9. Plasticity analysis and numerical modelling of tunnel collapse in cohesive soil

    黏土中隧道垮落的塑性分析和數值模擬
  10. The unconfined compressive strength, shearing strength and permeabi lity of stabilized soils were tested in laboratory, the strength of contaminated composite soils sampled with different ph and soaped in corresponding ph were compared. the results from experiments indicate that there exists a certain relationship between the soft soil properties and the unconfined compressive of grouted soil. with the increase of water content, porosity ratio, degree of porosity, plasticity limit, liquid limit and liquid index, the compressive strength of cement - sodium silicate - stabilized soil decreases, while increases as the bulk weight and compressibility modulus

    通過對水泥?水玻璃加固土的無側限抗壓強度試驗，以及用不同酸堿性水製成與養護的固結土所進行強度對比試驗，得出軟土的物理力學性質指標與加固土的抗壓強度之間存在一定的相關關系，即隨著含水量、孔隙比、孔隙度、液塑限及液性指數的增加，水泥?水玻璃加固土的抗壓強度相應地降低；而隨著原狀土的容重、壓縮模量的增加，水泥土的抗壓強度也隨之增加。
  11. The research focus on soil c compaction principle under the action of combination impaction and vibration by the test and theory method based on elasticity, plasticity and rheology performance. put a lot of stress boxes in the soil. measure and record the soil stress directly, then process the record datas by mathematic method

    在方法上採用了理論與試驗相結合的研究方法，在土體彈、塑特性及土體流變特性的理論基礎之上，在土體中埋放了大量的壓力盒，通過測量和觀測儀器直接記錄土體內部各點在沖擊與振動聯合作用下的內應力值。
  12. There are two main innovate ideas in the dissertation. ( 1 ) supported by the results from the method of limit analysis of soil plasticity and the ultimate equity method, the author proposes the criterion of judging of stability of slope of foundation of a building

    本文的創新點主要有：採用塑性極限分析和極限平衡方法，通過計算，提出了黃土地區宅基邊坡的穩定性評價標準，即人工谷緣的坡度不得大於天然坡度。
  13. The famous project of gas transiting west to east and the cross - river tunnel of huangbu river in shanghai also will be constructed with this technique, which is under the plan. among the shield tunneling methods, up to now, earth pressure balanced shield tunneling ( epbs ) is the most universal type, and it is very certain that the epbs method adopt to our country increasingly. the key factor to success in epbs is converting the muck which is lack of fluidity excavated from the cutter face to the plasticity soil. but when the shied tunneling machine advancing, it is considerably difficult to reach this requirement because of the ground soil condition, which is consist of stiff clay, silt, weathered rock, and so on

    近些年來我國城市地鐵建設迅速發展，盾構施工法作為一種安全而又環保的施工方法得到了廣泛的使用，另外在黃浦過江隧道，西氣東輸的穿黃隧道等工程也在使用盾構隧道施工技術。這其中土壓平衡式盾構在我國的使用最為普遍，成為地鐵隧道施工技術的主流。土壓平衡式盾構施工成功的關鍵是要將開挖面切削下來的土體在壓力艙內調整成一種「塑性流動狀態」 。
  14. The leaves biomass, root biomass, total biomass, sla, lar, srl, rlr and rgr of three species had very obvious plasticity to soil water. but the plasticity degree of three plants to different soil water were c. smyrnioides > a. sylvestris > c. violaceum

    三物種的葉生物量、根生物量、總生物量、 sla 、 lar 、 srl 、 rlr和rgr對土壤水分的可塑性均較大，但可塑性程度為明黨參峨參川明參。
  15. And the results show that the calculated settlement agree well with that of measured. the paper established the dynamic pore pressure models of soft soil subgrade and composite foundation, compiled the dynamic fem program of undrained effective stress method, considering the elasto - plasticity of foundation soil as well as the interaction of pavement and foundation, thoroughly analyzed the deformation characteristics of pavement and foundation, and these results are instructive for the construction of pavement or airport runway

    本文建立了軟土地基和復合地基的動孔壓經驗模型，編制了不排水有效應力動力反應分析有限元程序，不僅考慮了地基土體的彈塑性，而且考慮了道路結構與地基的相互作用，比較全面地分析了交通荷載作用下道路與地基的整體變形特性，對道路工程或機場道面工程的建設具有一定的指導意義。
  16. Secondly, considering the complexity of the analysis of inclined - loading pile, nonlinear finite element method is adopted to calculate the internal force and displacement of pile group under inclined loads, with the concept of equivalent width presented to simplify 3d problems into 2d problems. and a program is developed as well, which is able to consider the continuity, elastic - plasticity and layered characteristic of soil around the pile shaft. besides, the interactions among pile, base slab and soil are considered in this program and contact surface element is used to simulate slipping and crazing between pile and soil, or between base slab and soil under loads. then, the non - tension analysis is proposed, to reflect the low - tensile property of soil and concrete

    在此基礎上，針對傾斜荷載下群樁基礎分析中的復雜性，提出採用非線性有限元對傾斜荷載下群樁的內力及位移進行分析，應用樁的等效寬度概念將空間問題簡化為平面問題考慮，並開發出能考慮樁周土介質連續性、彈塑性、分層性等因素的傾斜荷載下群樁內力及位移分析的計算機程序，並在程序中考慮了樁、土、承臺的相互作用，提出了採用接觸面單元來考慮荷載作用下樁與土體及承臺與土體間的滑移、開裂；並在此基礎上，提出了傾斜荷載下群樁基礎的「無拉力」分析方法，可有效地反映土體及混凝土材料的低抗拉特性。
  17. 2. taking five representative casualty loess landfalls on the house side - slope as examples, applying the method of limit analysis of soil plasticity and the ultimate equity method, the equation of the stability and gradient of the landfall is derived

    2 .以5個典型宅基邊坡傷亡性黃土崩塌為例，利用塑性極限分析和極限平衡法，推導出了此類黃土崩塌的穩定性與其坡度之間的關系。
  18. Abstract : based on soil plasticity and limit analysis theory, the second failure surface of backfill behind retaining wall with gentle back surface are studied from two view points of maximum active soil pressure and minimum resistive overturning safety factor, and it is further considered that the minimum resistive overturning safety factor is the best approach to studying the failure mechanism of backfill under complex back surface conditions of retaining structures

    文摘:基於土的塑性極限分析理論，從擋土墻最小抗傾覆安全系數和擋土墻背上的最大主動土壓力兩個角度，分別研究了坦墻後土體中第二破裂面的位置，認為在復雜的擋土結構墻背條件下，用最小抗傾覆安全系數來研究擋土墻後土體的破壞機制較為合理。
  19. That is to say, there are differences in selecting the points which represent the average compactive effect of soil between piles. based on cavity expansion method, the stress change of soil between piles when sinking pile is studied with elasto - plasticity theory. the triaxial compression tests of undisturbed samples are carried our in laboratory

    本文通過圓孔擴張理論，應用彈塑性理論對灰土擠密樁成孔過程中樁間土土體應力的變化進行了分析研究，通過試驗採取原狀土樣進行三軸試驗，用鄧肯-張模型建立土的本構關系，對樁間土的擠密進行理論分析，並通過現場干密度試驗，分析和研究樁間土的擠密效果。
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