拉線樁 的英文怎麼說
中文拼音 [lāxiànzhuāng]
拉線樁
英文
guy anchor-
According to the character that the soil can endure the press than the tensile strength, the arching shape of the soil arch between piles has been regarded as the reasonable arch axes. by analyzing the mechanical balance condition of the arch, the transfer mechanism of the thrust has been gained. at the same time, the formula for computing the thrust acting on the pile has been gotten, and the present computing formula is just the special example of it
根據巖土體抗壓性好、抗拉性差的特點，將樁間土拱的拱形視為合理拱軸線方程，通過分析土拱的力學平衡條件，得出樁間滑坡推力的傳遞模型，並由此得到抗滑樁上的滑坡推力計算公式，現有抗滑樁上滑坡推力的計算公式只是本文公式的特例。According to the documentation collected from domestic and abroad wang wei dong who works in huadong architect and structure institute utilizes the similar work property between the underground continuous wall and pile subjected the vertical loads, and introduces poulos method of elasticity and plastic which applies to pile foundation into the calculation for subsidence of underground continuous wall. pujialiu and yu yuzhou from water and electronic engineering of qinghua university, according to the result of three axes, define the concrete parameter utilize the model of non - linear e - b combined with the design cross section of dam in xiaolangdi, yellow river accept the total stress programme of thepd dam, and we analyze the stress and displacement of plastic concrete diaphragm wall by finite element method in comparison with the result of common concrete one. at same time, we consider the effect of the character of plastic concrete diaphragm wall which is composed of different gradients and adopting the level of stress and pulling stress infers whether the plastic concrete diaphragm wall is safe or not
地下連續墻是一種歷史較短的施工方法，目前，砼防滲墻的設計還是以傳統的設計方法為主，根據查找國內外文獻資料，華東建築設計院王衛東利用地下連續墻與樁在豎向荷載作用下的工作性能有相似性，將適用於樁基的poulos彈性理論引入對地下連續墻的沉降計算中；清華大學水利水電工程系濮家騮、于玉貞根據三軸試驗結果確定混凝土的參數，利用非線性e - b模型，結合黃河小浪底土石壩設計剖面，採用thepd土石壩總應力程序，對深覆蓋層塑性混凝土防滲墻的應力、位移進行有限元分析，並與普通混凝土防滲墻計算結果加以對比，同時分析了不同配比塑性混凝土特性的影響，並採用應力水平和拉應力數值來判斷塑性混凝土防滲墻的安全程度。In order to reveal load mechanism and failure mode of thick pile caps, by means of the test of 1 / 4 - scale models of thick pile caps with six piles and post - handling study of 3 - dimensional non - linear finite element adina, this paper points out the shortage, which is that the design of pile caps is carried out by flexural strength in chinese technical code for building pile foundations jgj94 - 94 and american reinforcement concrete building construction code aci318 - 02, promulgates that the failure mode of thick pile caps is punching failure and load transfer mechanism is the strut - and - tie, which is that zones of concrete with primarily unidirectional compressive stresses are modeled by compress struts, while tension ties are used to model longitudinal reinforcement over pile
摘要為揭示厚承臺的傳力機理和破壞形式，通過對4個1 : 5比例的六樁厚承臺的模型試驗研究與三維非線性有限元adina的后處理研究，指出中國建築樁基技術規范jgj94 - 94與美國鋼筋砼房屋建築規范aci318 - 02規范中，承臺以彎曲強度進行配筋計算的設計方法之不足，揭示出厚承臺的破壞模式是沖切破壞，傳力機理是以帶有主要單向壓應力的砼區域作斜壓桿，樁頂區域的縱筋作拉桿的空間桁架。To fetch soil and do pole stamping, drilling or digging or dump acids, alkaline, salt and other harmful chemicals within the prescribed scope covered by the base of electric poles or towers and bracing wires
（八） 、在桿塔、拉線基礎的規定范圍內取土、打樁、鉆探、開挖或傾倒酸、堿、鹽及其它有害化學物品。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。The distance from figure center of the parabola to the potential slide surface is less than half of the section length. mechanical conditions of this method include not only force equilibrium but also moment equilibrium. as for the beam - on - foundation, its pressure can be calculated by homogeneous hypothesis or winkler foundation hypothesis or infinite half elastic foundation hypothesis on the pulling anchor - cable step and by coulomb active earth pressure theory approximatively on the long term working step
對于樁在滑面以上段所受的坡體荷載，提出可按形心偏下的拋物線型分佈模式計算，並在滿足力的平衡條件的同時還滿足力矩平衡條件；對于地樑上作用的坡體荷載，提出在錨索張拉階段可按均布或溫克爾（ winkler ）地基假定或彈性半無限體地基假定來計算，在工作階段則一般可以近似按庫侖主動土壓力理論計算。With the input of a vibration acceleration history of subway train, a full dynamic analysis of soil - pile - structure is carried out. the propagation of vibration wave on the ground and vibration responses of the huge platform and the storied buildings are analyzed. some conclusions are drawn as follows : ( 1 ) with the increase of the distance to the vibration source, vibration intensity of the ground decreases ; ( 2 ) the vibration intensity of the ground in vertical direction is slightly larger than that in horizontal direction ; ( 3 ) with the increase of the distance to the vibration source, the situation that the vibration intensity of each building in horizontal direction is maximum at highest and lowest story whereas minimum at the middle story changes gradually to that decreasing with the height of building ; ( 4 ) in vertical direction, the vibration velocities and accelerations at the end points of each story of a building are the nominal identical, which indicates that the vertical vibration of them is unanimous ; ( 5 ) the vibration intensity in vertical direction of a building is larger than that in horizontal direction ; ( 6 ) increasing of the elasticity of track is an effective way to abate vibration of ground and buildings
本文以北京地鐵八王墳車輛段地上超大結構（車輛段大平臺及其上的小區樓房）及其地基基礎為研究對象，在研究和分析有關資料的基礎上，用快速拉格朗日有限差分法軟體flac建立了二維數值分析模型，並以列車振動加速度時程作為模型輸入，進行了地基?樁基礎?地上結構的整體動力學分析，分析了地鐵列車運行產生的振動在地面的傳播規律及其對地上結構的影響，得到了如下結論： （ 1 ）隨著與地鐵線路距離的增大，地面的振動強度有減小的趨勢； （ 2 ）地面豎直方向的振動強度較之水平方向的略大； （ 3 ）隨著與振源距離的增大，在水平方向上，地上各幢樓房的振動強度由底層和頂層的最大、中間層的最小逐漸過渡到沿樓層增高而減小； （ 4 ）在豎直方向上，每幢樓各層端點的振動速度、加速度完全相同，表明樓房各層在豎直方向上的運動狀態一致； （ 5 ）各幢樓房豎直方向的振動強度比水平方向的大； （ 6 ）增加軌道彈性是減輕地面和地上建築振動的有效途徑。分享友人