砂壓載 的英文怎麼說
中文拼音 [shāyāzǎi]
砂壓載
英文
sand ballast-
There are many ways to handle the soft soil, such as : use the sand mat as a layer, carry to press in advance, press by thin film in the vacuum in advance, drain by use the sand well, drain by plastics plank, and reunite the foundation
軟土的處理有許多方法，如：砂墊層，堆載預壓法，薄膜真空預壓法，袋裝砂井排水法，塑料排水板法，復合地基法。Based on comparison of several technical schemes, the method of sand bedding pre - elevating and step water - filling pre - compressing is adopted. so the dissertation is consist of two parts : ( 1 ) the applicability study for the method of sand bedding pre - elevating and step water - filling pre - compressing, including numerical analyses for the thickness of sand bedding, the consolidation, settlement and stability of foundation, drainage, possibility of foundation liquefaction under seismic loading, et al. ( 2 ) monitoring at construction stage and checking the effect of foundation treatment, including the measurements of the settlement velocity and non - uniform settlement of ring beam under the tank, pore pressures and horizontal displacements in foundation, the pressure distribution at the bottom of oil tank and the strength increase of soils
通過多種技術方案比較，最終選擇了技術先進的砂墊層預抬高分級充水預壓法，論文工作主要由以下兩部分組成： （ 1 ）砂墊層預抬高分級充水預壓法的適用性研究，其中包括砂墊層厚度、地基沉降與固結度、地基穩定性、降水、地震作用下砂土液化的可能性等方面的計算分析； （ 2 ）施工監測與地基處理效果檢驗，其中包括油罐環梁基礎沉降速率與不均勻沉降程度、各分級充水加載階段地基超靜孔壓與深層水平位移、油罐底板壓力分佈及地基土強度增長等方面的實測與數據分析。Finally, two examples show that, the availability and practicability of the new model is verified. the analysis of calculation result of berthiervill test embackment shows different part of compression curve have different influence upon the course of consolidation, and correct coefficient and viscous effect have great significance on deformation forecast. associated with the wenzhou airport runway engineering, the reason of increasing of pore - water pressuer in under - lying soft layer and post - construction settlement are given
最後，通過兩個工程實例的分析來說明本文模型的有效性和實用性:一是對berthiervill填土試驗場的軟基實測數據和理論成果進行對比分析，闡明考慮結構性擾動和粘滯性效應對分析天然粘土固結壓縮性的重要性;二是對溫州機場袋裝砂井超載預壓工程進行數值模擬，指出停荷預壓期間下臥層孔壓增加和工后沉降大的原因。And a post - liquefaction test method has been put forward, in which the cyclic loading and the static loading courses are both controlled by stress mode. this method reflects the in - situ conditions well and truly, and a lot of tests have been done using this method. in these tests the effects of confining pressure, relative density, liquefaction severity etc. have been thoroughly investigated
主要工作內容如下：參與研製了振動扭剪全自動多功能三軸儀，並利用其獨特試驗功能設計了一套飽水砂土液化后特性的試驗方法，試驗過程中模擬地震作用的動加載過程及模擬大變形發生的靜加載過程均採用應力控制的方式進行，試驗方法跟現場條件更為接近並用該試驗方法對相對密實度、固結壓力、液化度等對液化后變形特性的影響進行了研究。The major factors of the experiment are listed as following : the influence of different reinforcement ratio of the walls, the influence axial compression ratio, the influence of vertical reinforcing bars at the boundary, the influence of mortar layers etc. furthermore, the load carrying capacity and the elastic stiffness are calculated and experimental results have proved that they are good
試驗中考慮的主要因素有：墻體不同配筋的影響、軸壓比的影響、兩端豎向加強鋼筋的影響、砂漿層的影響等。並對試件的承載力及彈性剛度進行了實測結果與計算的比較，符合較好。The influences of soil structure, confining pressure and strain amplitude on dynamic properties of recently deposited soils of nanjing and its surrounding areas are discussed. furthermore, based on test results and theoretical analysis, the averaging curves, recommended values and envelopes of dynamic shear modulus ratio ggmax and damping ratio versus dynamic strain for recently deposited soils of nanjing and its surrounding areas are presented. by use of vibration triaxial apparatus, nanjing silty clay and fine sand interbedded strata and nanjing fine sand were tested and their test results are discussed
通過自振柱試驗，探討了土的結構性、有效圍壓和應變幅值大小對動荷載作用下南京及其鄰近地區新近沉積土的動剪切模量、阻尼比和應力?應變關系的影響；通過試驗和理論分析，給出了南京及其鄰近地區的粘土、淤泥質粉質粘土、粉質粘土、粉質粘土與粉砂互層土、粉土以及砂土等六類新近沉積土中典型土類的動剪切模量比和阻尼比隨剪應變幅值變化的平均曲線、包絡線和推薦值。With the data recorded by computer, the author studies the experiment progress in detail, which includes the development of pore press, strain, strength of the sand, etc. connecting the development of these phenomena with the development of stress path, the author finds new mechanism which can explain the phenomena in the experiment. what is more, according to the dynamic test of the sand, there appears a steady state at the last phase of the development of strain and stress path, in which the strength of the sand is studied because it is an important parameter in evaluating the stability of sand against liquefaction. secondly, the dynamic constitutive relation was studied through the dynamic tri - axial test
本文首先採用目前國內較先進的微機控制動三軸儀，利用其可以適時採集和儲存數據的優勢，對砂土的實驗過程進行了細致的分析，研究該過程中孔隙水壓力發展、軸向應變發展以及它們與應力路徑之間的關系，對飽和砂土的剪脹、剪縮和卸載體縮等多個方面進行了研究，探索了砂土的動力特性，分析了影響砂土抗剪強度的各種因素，這些因素既包括土本身的特性（土的密度、結構、級配、透水性以及初始狀態等） ，又包括動荷載的特徵（振動力幅值大小和振動頻率等） 。Some key subjects of numeric analysis were discussed such as : selecting principles of constitutive equations of soft clay, the equivalent theory of vertical drains ground, the definition of load step, the determination of vertical drains as well as the treatment methods of the decline of groundwater level, sealing wall and nearby water source
著重論述了真空預壓加固地基數值分析中對土體本構方程的選擇、砂井地基等效轉換、分析荷載步的確定、豎向排水體的界定、地下水下降的處理、密封帷幕的處理、附近補充水源的處理等問題。Observing the mechanics and effect of the new strengthening method with test and finite element method is supposed to offer a guide for technology and become valuable in theory and practice. both compression test, including four reinforced and three control specimens, and shear - compression test, including nineteen reinforced and four control specimens are being studied in this paper. the research on the curves of load - strain, load - deflection and hysteretic shows that the transverse translation of the reinforced columns is well controlled with an upgrading of both ductility and ultimate bearing capacity ( ubc )
本文對4根鋼絲網外噴高強砂漿加固鋼筋混凝土柱和3根對比鋼筋混凝土柱進行了軸壓試驗研究，並對19根加固鋼筋混凝土柱和4根對比鋼筋混凝土柱進行了剪壓試驗研究；通過對試件荷載-應變曲線、荷載-撓度曲線和滯回曲線等的研究表明，採用該加固方法能有效的約束柱子橫向變形，並對提高鋼筋混凝土柱的極限承載力和延性有明顯的效果；同時根據理論及加固機理分析提出了適應於此加固方法的軸壓極限承載力計算公式。It was analyzed the rule of the dynamic characters of sandy pebble soil under different confining pressure, consolidation ratio and vibration frequency
主要分析不同圍壓、不同固結比和不同振動頻率對砂卵石土的動荷載影響的變化規律。As we know, concrete structures in reality are always under various stresses or with microcracks of different width. so in this paper, compressive stress tensile stress and microcracks are introduced into water permeability and carbonation experiment, with the object to study the relationship between those factors and durability indexes. sem xrd and mip methods were also used to study the relevant mechanisms
由於實際工程中的混凝土結構均承受不同類型的荷載和帶有不同寬度的微裂縫，故本文考慮選取外荷載引起的壓應力對普通混凝土滲透性的影響，彎曲應力對砂漿、凈漿碳化深度的的影響以及在帶有裂縫狀態下水泥基材料的滲透和自愈現象開展了部分實驗研究，同時通過對混凝土、砂漿及凈漿系列水泥基試件的碳化和滲透實驗比較，從微觀角度對碳化和滲透、自愈現象的一些機理也做了初步研究。Four - cloumn universal hydraulie press is used in pressing technology of plastic materials, such as click folding turn up. seretching of sheet metal and canbe also used in correetion pressed install, forming of grinding wheel and cold - coining metal fittings and forming technology of poastic and powder prodects
四拄式萬能液壓機適用於塑性材料的壓制工藝，如沖載、彎曲、翻邊、薄板拉伸等，也可以從事于校正、壓裝、砂輪成型，冷擠金屬零件成型，塑料製品及粉末製品壓製成型工藝。In this paper, with complete calculation micro - mechanics method, mass concrete was taken as three - phase composites, which consists of mortar matrix, aggregate and bond between matrix and aggregate. with nonlinear finite element method, the simulation of static and dynamic mechanics performance of the uniaxial compress concrete specimen of dongjiang arch dam and simple supported beam specimen of xiao wan arch dam was studied by means of the software of msc. marc. the number of all kinds of mortar matrix was calculated according to grading of aggregate of three graded concrete and walraven function
本文採用完全細觀計算力學方法，將大體積混凝土在細觀層次上看成是由粗骨料顆粒、硬化水泥砂漿及其二者之間的粘結界面組成的非均質復合材料，採用非線性有限元方法，在對大型商業有限元軟體? msc . marc二次開發的基礎上，對東江拱壩的三級配混凝土軸壓試件、建設中的小灣拱壩三級配混凝土梁試件在靜、動荷載下的力學性能和破壞過程進行了數值模擬。分享友人