stress ratio 中文意思是什麼
stress ratio
解釋
地基處理樁土應力比-
At last, the effect of the steel yield strenth, the yield - to - ultimate stress ratio, the shape and size of the access hole is researched. in conclusion, the finite - elenent model and the program adoped in this paper can well similate the response of beam - to - cloumn connections uder cyclic load
本文所建立的模型及採用的程序能夠很好的模擬、研究在循環荷載作用下剛性樑柱連接的反應，為進一步研究剛性鋼框架樑柱連接的抗震性能打下了基礎。 -
Based on the result of the comparision static penetrat ion test and field vane shear test before and after the treatment of soft founda tions for a experimental section, and based on four static loading tests for two single piles and two composite foundation, behaviors of soil among piles before and after the construction of powder - spray piles and the pattern of the ch ange of the stress ratio between piles and soil are studied, a new determination met hod for bearing capacities of cement powder - spray piles and composite foundati on is proposed, and the formula for calculation of composite foundation bearing capacity are revised
基於某試驗路段軟基處理前後靜力觸探、十字板試驗的對比測試和對兩根單樁、兩處單樁復合地基進行的4次靜載試驗，研究了樁間土性狀在施工水泥粉噴樁前後的變化和樁土應力比的變化規律，提出了根據靜載試驗確定粉噴樁及其復合地基承載力新的取值方法，並修正了復合地基承載力的計算公式。 -
Abstract : based on the result of the comparision static penetrat ion test and field vane shear test before and after the treatment of soft founda tions for a experimental section, and based on four static loading tests for two single piles and two composite foundation, behaviors of soil among piles before and after the construction of powder - spray piles and the pattern of the ch ange of the stress ratio between piles and soil are studied, a new determination met hod for bearing capacities of cement powder - spray piles and composite foundati on is proposed, and the formula for calculation of composite foundation bearing capacity are revised
文摘:基於某試驗路段軟基處理前後靜力觸探、十字板試驗的對比測試和對兩根單樁、兩處單樁復合地基進行的4次靜載試驗，研究了樁間土性狀在施工水泥粉噴樁前後的變化和樁土應力比的變化規律，提出了根據靜載試驗確定粉噴樁及其復合地基承載力新的取值方法，並修正了復合地基承載力的計算公式。 -
5. combining with field test, the author disputes load transfering mechanism and mode of failue about cement power - sprayed, and studies the relationship of n ( the stress ratio of piles to soil ) to load p. at last, the author summizes the factors to effect n
作者結合現場試驗，對粉噴樁荷載傳遞機理和破壞模式作了探討，對粉噴樁的樁土應力比n與荷載水平p的關系進行了研究，並對影響樁土應力比的因素作了歸納總結。 -
According to the theory, the method of using half - rigid pile reinforce the embankment below the corbel of the approach slab which form a composite foundation and realize rigidity gradation, is put forward in this paper and the formula to calculate pile - soil stress ratio in light of visic curvity expansive theory is also deduced here which can be used in design
應用這一理論，本文提出了採用半剛性擠密樁復合地基加固橋頭搭板枕梁下路堤實現，路、橋的剛柔過渡方法。針對低強度半剛性擠密樁計算理論的現狀，本文應用魏西克（ visic ）擴孔理論推導了計算樁土應力比的理論公式，可供設計階段採用。 -
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。 -
The prototype observation shows that because settlement of soil is larger than that of piles, " arch effect " appears in the embankment so that its weight is gradually transferred from the soil to piles and pile - soil stress ratio increases
現場原型觀測表明，樁間土的沉降量大於樁頂的沉降量，填土中出現拱效應，填土荷載逐漸從樁問土向樁頂轉移，樁土應力比逐漸增加。 -
The influence of stress ratio on maximum crack width of specimens is obvious, and the larger the stress ratio is, the longer the fatigue life is, it can influence the mechanical property of specimens directly
應力比對試件梁的最大裂縫寬度影響顯著，應力比越大，疲勞壽命越長，直接影響試件梁在疲勞荷載作用下的性能。 -
Analysis based on a large amount of data about the load - settlement, pile soil stress ratio and stress distribution obtained from the model tests shows that in the horizontal - vertical multiple reinforcing system, the horizontal reinforcing function of the geocell reinforced gravel mattress, the vertical reinforcing function of the gravel pile, the system of load transfer and supporting formed through interaction and working together mechanism between gravel pile composite foundation and geocell reinforced gravel mattress are the main mechanism of its load capacity improvement, settlement and asymmetrical settlement reduction
試驗結果分析表明：在土工格室碎石墊層碎石樁復合地基這一水平向豎向多元復合地基共同作用的加固體系中，結合了土工格室碎石墊層的水平向增強體作用和碎石樁的豎向增強體作用；土工格室碎石墊層和碎石樁復合地基相互作用，共同工作構成的荷載傳遞和支撐體系是其提高承載力，減少沉降和差異沉降的主要機理。 -
Based on the test results and bearing formula for djcm pile composite ground under rigid foundations, it raises the design formula for the bearing capacity of djcm pile composite ground under flexible foundations. secondly, taking material nonlinear especially the glide between pile and soft soil into account, some tentative analysis and numerical analysis have been done by finite element software - ansys. it summarizes some basic regularity of the pile - soil stress ratio load transferring and variation along depth, deformation characters etc.
其次，本文還應用大型有限元分析軟體ansys ，考慮水泥粉噴樁復合地基中樁-土材料的非線性特性，並特別考慮了樁和樁側土之間有相對滑動的實際情況，對柔性基礎下水泥粉噴樁復合地基的力學性狀作了初步的數值模擬分析，總結出柔性基礎下水泥粉噴樁復合地基中樁土應力比、荷載沿深度的傳遞特性和復合地基的變形特性等方面的基本規律。 -
With the typical on - axis fatigue tests to get the relative s - n curves of unidirectional laminates, executed at certain stress ratio, it is possible to predict the fatigue life of multidirectional laminates subjected to cyclic stresses of different stress ratios. this would tremendously reduce test costs for laminate structures
考慮了層壓板中單向層面內多軸應力和平均應力的影響，在已知單向板在確定應力比下受典型單軸循環應力的s - n曲線的基礎上，預測任意鋪疊次序層壓結構在不同應力比的循環載荷下的疲勞壽命。 -
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。 -
Considering that the load was added in steps, dynamic design based on in - sile test parameter is an effective and practical method. based on the author ' s experience of djm composite ground engineering, and two projects of highway djm composite ground, it systemically analyzed and summarized the in - site test result as well as the settlement deformation, pore water pressure dissipation, deep horizontal displacement, stress ratio, stress of pile. etc. it also compares the in - site test results of djm composite ground with or without rigid bearing stratum, and draws many practical conclusions
根據筆者多年粉噴樁加固路基工程的經驗，結合兩個高等級道路粉噴樁加固路基工程實例，全面系統地分析和總結了現場試驗路段試驗結果，對攪拌樁復合地基沉降特性、孔壓消散特性、深層水平位移特性、樁土應力比、樁身應變等作了深入細致地分析，對有硬持力層和無硬持力層（浮樁）的粉噴樁復合地基現場試驗結果作了對比，得到了許多有應用價值的結論。 -
( 4 ) the stress level, stress ratio, loading frequency and failure probability, which determine the fatigue life of concrete, are served as the input of the neural network while the fatigue life as output. the nonlinear relations of them are described wih the structure of neural network
（ 4 ）把決定混凝土疲勞壽命的應力水平、應力比、加載頻率和破壞概率作為神經網路的輸入，以疲勞壽命作為網路的輸出，用網路結構描述它們之間的非線性關系。 -
Based on the formula which is used to compute the lateral resistance of single pile deduced by wang qitong, a formula is setup whose precondition is that the pile and the lateral soil directly around the pile deform in - phase. on the basis of that the contact stress of the foundation is equal, a formula that can be used to conform the stress - ratio of the composite ground is set up, on the same time, the principles of the deformation harmony of the soil and the piles in the composite ground are also discussed. combining with results of this test, a formula which can calculate the bearing capacity that considering the effect of group piles of the composite ground is also deduced
視攪拌樁樁體為均質彈性介質，推導了復合地基中單樁有效樁長的理論計算公式；根據王啟銅柔性樁樁側摩阻力計算公式，以樁側土與樁體協調位移為前提推導了柔性樁樁側摩阻力的計算公式；以基底接觸應力均勻分佈，樁體、樁間土均質為前提，討論了樁，土協同工作原理，從而得出復合地基樁、土荷載變形特性，以及樁、土應力比計算公式；結合本次試驗，通過計算加載時樁體與土體的荷載分擔情況以及在極限狀態下樁土承載力發揮值，提出考慮群樁效應的攪拌樁復合地基承載力計算公式。 -
Associating example, the influence factors of the stress ratio of pile and soil are discussed, especially the replacement rate, the modular ratio of pile and soil, deformation modular of gravel pile, reyleigh wave velocity of soil between piles are given more effort
文章結合實例對樁土應力比的影響因素進行了討論，並重點分析了置換率、樁土模量比、碎石樁變形模量、樁間土瑞雷波速對樁土應力比的影響。 -
The rule of settlement and pore stress is educed too. then it is compared with the case which is found in site. finally, the paper studies the computing method of pile to soil stress ratio of rigid pile composite foundation with cuhion, and these conditions are thought that the top of pile pierce into cushion and the bottom of pile pierce into underlayer. lt is assumed that the cushion is ideal elastic mass and ideal elastic - plastic mass, then the formula is developed and all parameters " effects to stress ratio of pile to soil are discussed
最後，推導出了帶墊層的剛性樁復合地基樁土應力比的計算公式，這個公式將墊層分為彈性體和理想彈塑性體兩種情況分別進行推導，考慮剛性樁刺入墊層和下臥層的情況，並對公式進行了分析，得出了在剛性樁復合地基中樁土應力比隨著墊層模量和樁模量的增大而增大，但都有一極限值，隨樁間土模量的增大而減小，也有一極限值。 -
In the thesis domestic and foreign relation model of standard penetration blow count and shearing velocity, standard penetration blow count and deformation modular, shearing velocity and foundation bearing capacity are analyzed. on base of these analysis a new calculation model that applying rayleigh wave velocity to calculate the stress ratio of pile and soil between piles is established. because of the difference of region and soil character, the new model own three branch model, ie, japan model, wuhan model, xia liaohe mo del, in three different conditions
文章通過分析國內外標準貫入擊數與剪切波速、標準貫入擊數與變形模量、剪切波速與地基土承載力之間的關系模型，並考慮到地區性和土質類別的差異，分別選用日本公路橋梁抗震設計新規程模型（日本模型） 、武漢地區模型、下遼河平原模型三種模型建立了新的樁土應力比計算模型? ?應用瑞雷波速求解樁土應力比之間的計算模型。 -
This article analyses the reinforcement mechanism of pile - net composite foundation mainly, combining natural equilibrium arch theory and reinforced cushion tension membrane theory to deduce the calculation formula of the stress ratio of pile - soil in the pile - net composite foundation under embankment
本文主要對樁網復合地基的加固機理進行分析，並結合自然平衡拱理論和加筋墊層拉膜效應理論推導出路堤下樁網復合地基樁土應力比計算公式，同時分析了各設計參數變化對樁土應力比的變化規律。 -
It is not always good at increased the cement ratio ; sometimes it is even harmed to the strength of the pile. the strength of the pile must matches the strengths of the origin soft foundation. improved fixing methods of strain meter and how to calculate the deformation modulus, the load transfer behavior of cement - soil pile, the compound foundation bearing capacity, pile - soil stress ratio with the increasing of the load are analyzed and studied
本文通過分析和試驗分析，提出樁間土天然地基承載力標準值的取值方法、樁間土承載力折減系數取值方法，這和實測結果很接近；並得出提高復合地基置換率是提高復合地基承載力有效途徑，並具體比較了單樁復合地基和三樁復合地基提高天然地基的承載力的數值，並驗證樁體強度應和天然軟基相匹配，指出盲目提高樁體強度是不可取的，有時甚至偏於不安全，這對于當前的建設是很有意義的。
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