立樁機 的英文怎麼說
中文拼音 [lìzhuāngjī]
立樁機
英文
post master-
Then, by using the great fem programme and the drucker - prager model, the thesis establishes the pile - soil model of super - long piles, analyzes the mechanism of bearing and deformation of super - long piles under vertical loading systemically, studies the characteristics of q - s curve, bottom resistance, pile shaft resistance and critical length of super - long piles in detail, acquires some practical guidance conclusion. secondly, with a practical engineering, the author expatiates the bearing characters of super - long piles farther. the thesis points that super - long piles are frictional piles under the condition of working loading
然後應用大型有限元程序,採用土的drucker - prazer模型,建立了超長樁分析計算的樁土模型,系統分析了超長樁在豎向荷載作用下的承載機理和變形特性,研究了超長樁的荷載?沉降特性,端阻、側阻的發揮性狀以及超長樁的有效樁長,得出了具有實際指導意義的結論。Abstract : with the composite process of root - pile and infilling consolidation by cement injection with foraminate - steel - tube ; good effect has been made in the treat of sideslip of one fly - over bridge. the work machanism and technology of cement injection with foraminate - steel - tube are discussed in following article
文摘:用樹根樁及帶眼鋼管充填壓密灌漿工藝復合處理某立交橋側移的實踐取得很好實效;對帶眼鋼管灌漿的工藝與機理作了討論,認為其具有廣闊的應用前景。Legislation to phase out the use of noisy percussive hammers ( including diesel, steam and pneumatic hammers ) in built - up areas was enacted in may 1997 for implementation early in 1998
在樓宇林立地區逐步取締高噪音撞擊式打樁機(包括柴油、蒸氣及氣動打樁機)的法例,已在一九九七年五月制定,將於一九九八年初實施。So how to transfer scientifically self - balanced test data into top load curve according to its actual working behavior, become the obstacle of its practical application. in accordance with actual forcing behavior and reaction mechanism between pile and soil, the article analyzes the relation between top part and bottom part, load transferring mechanism and difference with other loading way by ansys program. so the reliability of determine bearing capacity by self - balance method has been proved
本文根據自平衡加載方式下樁身的實際受力狀況、樁土間的相互作用機理以及單樁破壞機理,建立了單樁的離散元模型,採用ansys通用分析軟體,選取合理的單元類型、材料特性等,數值分析了基樁在自平衡加載方式下上下樁段的相互關聯、荷載傳遞機理以及與其它加載方式的區別,論證了採用自平衡試樁法測定單樁極限承載力的可行性。He reiterated that the seven votes of the breakfast group were all in support of the setting up of a select committee and that even if the government set up a commission, the two bodies could investigate simultaneously, as was the case in the chaotic opening of chek lap kok airport and the short - piling scandals
他重申,早餐派7票都支持成立專責委員會,並認為即使政府另設委員會,也可同步進行,就如過去機場混亂事故、短樁事件一樣。It takes good use of these two numerical computation methods merits and it is valuable for defmiting the computation model of pile ? oil ; at the same time, it builds the computation model of compound pile foundation and uses the software ansys which is about finite element to build the mechanics model. in regular quality soil, the result worked by this way has good unanimity with traditional results, so it applies us strong evidence for using the way which this article tells us to solve problems which is difficult to handle in compound pile foundation, such as irregular quality, layer quality of the soil. at last, taking foundation soil ' s measuring data of liaoning technology university ' s test building for example, and using the way this article tells us to build compution module, we solve the sharing ration of pile and loading board
本文利用有限元與邊界元耦合的方法求解樁土相互作用問題,充分利用兩種數值計算方法的優點,對確定樁土相互作用計算模型是一次有益的嘗試;同時建立了群樁相互作月的數學模型,並利用有限元分析軟體ansys建立其力學模型,在均質土體中取得了與傳統解答較好的一致性,從而為拓展利用本文所述建模方法,解決群樁作用機理研究中難以處理的土體成層、非均質等性質,提供了有力的根據;最後,以遼工大實驗館地基土實測資料為例,利用本文建模方法,求解出承臺與樁的荷載分擔比,對安全、經濟地進行群樁基礎設計具有重要指導作用和應用價值。3. studied the work mechanism of ccsn, the model of stability analysis of ccsn is established and examined by analysis engineering case
( 3 )研究了錨管樁復合土釘支護機理,建立了錨管樁復合土釘支護穩定性分析模型,並對工程實例進行計算分析,檢驗了分析模型。The behind schedule theories research obstructs the ccsn ' s further development. on the soil nailing and compound soil nailing research foundation, according to ccsn present research condition and the engineering effective demand, the stability of ccsn is studied systematically by methods of theories research, orthogonal experiment research and case research. some beneficial results of the ccsn ' s mechanism and behaviors are gotten and the analysis model and method of ccsn ' s stability are established
在前人對土釘及復合土釘研究基礎上,根據目前錨管樁復合土釘支護的研究現狀和工程實際需要,採用理論研究、正交試驗研究、工程實例研究相結合的方法,對錨管樁復合土釘支護穩定性進行了系統全面的分析和研究,得到了錨管樁復合土釘支護機理及性狀的一些有益成果,建立了錨管樁復合土釘支護穩定性分析模型與方法。Then the dynamic model of saturated soil layer caused by pile longitudinal vibration is founded. incorporated wave propagations into saturated soil layer, the characteristics of soil resistance factor and the mechanism of the radial damping are analyzed, as well as distributions of shear stress and pore pressure in saturated soil caused by pile vibration
然後利用上述解析解分析了飽和土層復阻抗,並從飽和土波動理論出發,建立了樁縱向振動引起的飽和土層振動模式,剖析了輻射阻尼產生機理,研究了樁縱向振動引起的飽和土層中剪應力及孔隙水壓力分佈。Power bond graph is used to established the bond graph model of the lifting and dropping of hydraulic pile hammer and state space equation in the paper for hydraulic pile hammer is perplexing nonlinear system. in order to attain the graph that pressure, position, velocity, acceleration vary with time in the course of driving pile simulation procedure solving state space equation is designed on the basis of combining four - order runge - kutta method with predicator - corrector method, dynamic simulation of the hydraulic system is studied in matlab 6. 5. it is convenient to analyse dynamic characteristics of the hydraulic syste m, beneficial to the design and parameter optimization of the hydraulic system. in the final part of the paper, under detailed analysis of the control characteristics for double - acting hydraulic pile hammer with double cylinders, control system based on the programmable logic controllers founded on technology of modern compute is designed
由於液壓打樁錘液壓系統是一個復雜的非線性系統,本文採用功率鍵合圖法建立液壓打樁錘上行、下降的鍵合圖模型和狀態空間方程,通過四階龍格?庫塔法和預估?校正法相結合編制了模擬程序對狀態空間方程求解,在matlab6 . 5中進行液壓系統的動態模擬,獲得液壓打樁錘運動過程中壓力、位移、速度、加速度等隨時間變化的曲線圖。此曲線圖方便了對液壓系統動態特性分析,為液壓系統的設計和參數優化提供了有益的借鑒。最後,在深入分析雙缸雙作用液壓打樁錘控制系統的功能要求后,採用了以現代計算機技術為基礎的新型工業控制裝置? plc可編程式控制制器,設計出了雙缸雙作用液壓打樁錘的電器控制系統。Firstly the property of the composite foundation under load is discussed, a new pile element stress - strain model is establish - hed by considering the different deformation in the vertical and horizontal and the pile - soil interaction, as a result, a new pile - soil stress ratio expression is established based on the vesic expansive theory
首先本文從理論上探討了碎石樁復合地基的承載機理,以魏西克擴張理論為基礎,建立了考慮碎石單元體縱橫向異性的應力一應變模型,並導得了一種新型的樁土應力比計算表達式。The thesis introduces the biot ' s three - dimension consolidation theory based on absolute linear - elastic theory ; the thesis designs the pit dewatering scheme of hand - dug piles support of shenyang subway ' s shenyang station construction ; the thesis uses finite element program to simulate the influence on around environments caused by pit dewatering, and finds the change laws of earth mass inner stress and the effect parameters on the surface deformation on the basis of reasonable hypothesis and the analysis of ground water exploitation progress. combined with stochastic medium theory, the thesis introduces dewatering subsidence coefficient, sets up the predicting model of the surface deformation caused by dewatering, and develops the computing program ; by application of program on a single well of underwater exploitation, it is proved that the program is feasible, so the prediction of the surface deformation caused by underwater exploitation is realized
本文介紹了基於線彈性本構關系的biot理論;設計了擬建沈陽地鐵沈陽站點人工挖孔樁支護施工的基坑降水方案;利用有限元程序,模擬了基坑降水對周圍環境的影響;在合理假設的基礎上,分析了地下水開采過程中,地層應力的變化規律,找到了影響地面變形的參數;與隨機介質理論相結合,通過引入采水下沉系數建立了地下水開采引起地面變形的預計計算模型,並編制了電算化程序;通過某單井開采實例驗證了該方法的可行性,實現了地下水開采引起地面變形的預計。2. the transfer mechanism has been analyzed for the landslide thrust between the pile and slope using the soil arching theory and a model is put up for the thrust ' s transfer mechanism and the part acting on the pile can be computed by the formula given
( 2 )應用土拱理論分析了滑坡推力在抗滑樁和樁間巖土體之間的傳遞機理,建立了滑坡推力的傳遞機制模型,得出了抗滑樁上滑坡推力荷載的計算公式。Five factors of effecting specify the bearing capacity of drilled grouting pile ( engineering properties of soil, structural dimension of pile, stiffness of pile, time ) have been concluded through introducing the transmission of load mechanism of drilled grouting pile. at the same time, the effecting parameter has been collected. the paper build the ann model in predicting ultimate bearing capacity of drilled grouting pile and discuss in detail the extraction of inputting nodes information when quoting the fundamental principle of ann model and introducing research process of the improved bnn
本文簡要介紹了樁基承載力的研究現狀並指出將神經網路引入樁基工程的意義,從介紹單樁荷載傳遞機理出發總結了影響單樁極限承載力的五種因素(樁周土的工程性質、樁身結構尺寸、樁的剛度、時間以及施工工藝)並提取了相應的參數;引用神經網路基本原理,詳細介紹了改進bp神經網路的研究過程,從而建立了預測鉆孔灌注樁極限承載力的神經網路模型;並詳細討論了本模型的神經網路輸入結點信息的提取,在工程實例的基礎上進行了數值計算。In this paper, depending on the enormous 356 pile testing date detailed with soil and pile parameters and p ~ s curves, covering xi ' an and adjacent areas, we analyzed the load transmission mechanism of pile in loess foundation, and proposed a kind of hyperbolic load transmission function between pile and it ' s neighboring soil. meanwhile, we created a mathematical model to predict p ~ s curve and bearing capacity of single pile. by analyzing the compacting effect caused by pile - sinking of pressed pile in loess and it ' s influence on bearing capacity and settlement, two parameters, kc and ke are introduced to modify the soil cohesive c and deformation modulus es
本文利用現己收集到的西安及其周邊地區356根打入樁、靜壓樁、灌注樁的現場試樁資料(其中打入樁67根,靜壓樁121根,鉆孔灌注樁168根,並有詳細的地層勘探資料,樁深資料,荷載沉降?曲線)對西安黃土地基中的打入樁、靜壓樁、灌注樁的荷載傳遞機理進行了分析研究,認為用雙曲線型的荷載傳遞函數模擬樁土之間的荷載傳遞函數是合適的,並用荷載傳遞分析的方法建立了計算p s曲線的數學模型及極限承載力的確定方法。I. e., the effect of linear and nonlinear analysis, the gradient of pile, the length of pile stick - up, and the horizontal force on the stability of pile stick - up were studied in details. 2. based on the difference of deformation and failure mechanism for pile side soil and pile toe soil, soil mechanics theory, and results of laboratory experiments and field tests, hyperbolic model and ideal elastic - plastic model were proposed to describe the behavior of the soil adjacent to the pile shaft and the soil at the pile toe, respectively
2 .根據土的非線性和非彈性特性以及室內與現場試驗結果,而且基於樁側土體與樁端土體在豎向荷載作用情況下的變形和破壞機理不同,提出應採用不同土體模型分別模擬樁側、樁端土體在打樁過程中所發揮的靜阻力,即:建立了樁側土體雙曲線模型,並推導了樁端土體理想彈塑性模型。分享友人