贯入

• Through studying the cptu chamber test with the soil as a medium in door , according to the stress which generated in the course of probe penetrating , include axial additional stress and radial additional stress , measured by subminiature pressure cells which buried in the soil . this paper analyzed the rule of variation of axial and radial additional stresses , and compared with each other
  摘要通过以粘土为介质的孔压静探( cptu )模型槽试验研究，根据埋置在土中的微型土压力盒在贯入过程中所则到的土应力（轴向附加应力和径向附加应力） ，分别分析了轴向和径向附加应力的变化规律，并进行了比较。
• The detection of foundation improvement now mainly depends on drilling hole test and standard penetration test , dynamic penetration test and plate loading test . but in the large area dynamic foundation , the relatively less measure points ca n ' t totally reflect the effect of dynamic compaction
  现有的地基加固效果的检测方法主要是采用钻孔和标准贯入、动力触探和载荷试验等原位测试方法，对于大型的（或大面积的）强夯地基来说，测点相对较少，不能全面的反映地基强夯处理的效果。
• 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
  文章通过分析国内外标准贯入击数与剪切波速、标准贯入击数与变形模量、剪切波速与地基土承载力之间的关系模型，并考虑到地区性和土质类别的差异，分别选用日本公路桥梁抗震设计新规程模型(日本模型) 、武汉地区模型、下辽河平原模型三种模型建立了新的桩土应力比计算模型? ?应用瑞雷波速求解桩土应力比之间的计算模型。
• Then displacement fields are researched via the finite element model that accords with actual process of jacked pile . and the effects of displacement fields caused by difference modulus ratio , friction between pile and soil , possion ration of soil and soil index of c and are put forward
  接着建立了能够模拟沉桩连续贯入的有限元模型，利用该有限元模型分析了桩土模量比、桩土界面接触刚度、桩土界面摩擦、泊松比以及土体的c和指标等因素对沉桩挤土效应的影响。
• ( 4 ) to determine liquefaction potential in site , several viable approaches are used , and these are ( 1 ) the standard penetration test ( spt ) , ( 2 ) measurement of in - situ shear wave velocity ( vs ) , and ( 3 ) use of test data and seed & idriss method . considering the non - linear of the soil , we calculate the earthquake response of the soil with the hardin - drnevich model and the finite element method . finally , we estimate the liquefaction capability of the site during earthquake in xuzhou , jiangsu province
  中国地展局工程力学研究所硕士学位论文川采用《建筑抗震设计规范》 ( gb50on一2001 )基于标准贯入试验的判别法、基于场地剪切波速的液化判别方法和seed一idriss简化法对可液化场地进行了液化判别;考虑土的非线性，采用等效线性化模型，利用有限元方法进行了场地的地震反应分析;并对沪蓉高速铁路徐州段可液化场地的地震液化性能做出了综合评价。
• The in - situ testing includes surface deformations , sub - surface movements , earth pressures , pore water pressures , underground water levels , spt , stresses of pipes and pipe - soil contact stresses . in addition , the total jacking forces , deviations in line and level of the pipe line and earth pressures in the earth pressure balance machines ( epbm ) are also recorded . the results of field - testing are analyzed , and the variety of testing datum include earth pressures , pore water pressures and underground water levels during the course of the shield through it are studied
  现场测试内容包括地面变形、深层土体变形、土压力变化、孔隙水压力变化、地下水位变化、土体标准贯入试验、管道内力变化、管土接触应力变化以及顶管施工现场记录(包括顶力、土压力、平面偏差、高程偏差等) 。
• Based on the data of pile driving records of a great number of piles in offshore platforms and the project about driveability analysis of super large diameter , super length , deep penetration pile of one oil - gas field in our south sea ， simultaneously , following up the front of the research of pile driving , studies have been performed as followings : 1
  本文紧密结合大量工程实测数据和我国南海某大型油气田开发所提出的平台超大直径、超长、深贯入桩基的动力打桩可打入性和承载力的高精度预测分析研究课题，同时跟踪本学科前沿领域，对以下几个方面进行了较为深入的探讨和研究。