| 1. | Analysis of compact effect and yarn structure of compact siro spinning
紧密赛络纺集聚效果及纱线结构分析 |
| 2. | Digital image analysis of gyratory compacted asphalt mixture for compacting effect evaluation
沥青混合料旋转压实效果的数字图像分析 |
| 3. | So it is important for engineering application that compacting effects of jacked pile are effectively predicted and construction measures that can decrease the compacting effects of jacked pile are taken
因此，能有效地预估静压桩产生的挤土效应以及采取能够减少挤土效应的施工措施都具有非常重要的工程意义。 |
| 4. | Fourthly , some construction measures that are used to decease the compacting effect are analyzed by use of finite element method . and the impact of construction measures such as prebored hole and groove that prevent the compacting effect is discussed
4 、利用有限元对减少静压桩挤土效应的施工措施进行了理论分析，讨论了预钻孔与防挤土槽等施工措施的防挤效果。 |
| 5. | Application of cpt technology in the loess area , the bearing capacity of artificial composite ground is determined . moreover , the correspondence relationship between the curve feature of cpt and the compact effect of lime - mud soil compact pile is discussed
论述了静力触探( cpt )技术在黄土地区对人工复合地基承载力的确定，以及静力触探曲线特征与灰土挤密桩挤密效果的对应关系。 |
| 6. | Jacked pile is widely used because of its various advantages such as noiseless , vibrationless , no impact and minor construction stress . however , the obvious compacting effects caused by the penetration of jacked pile may have severe influence on surrounding engineering environment
但是，静压桩属于挤土桩，其产生的挤土效应会对周边环境造成不利的影响，严重者可能造成邻近的建筑物开裂，道路隆起以及地下管线断裂等工程事故。 |
| 7. | 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
本文利用现己收集到的西安及其周边地区356根打入桩、静压桩、灌注桩的现场试桩资料(其中打入桩67根，静压桩121根，钻孔灌注桩168根，并有详细的地层勘探资料，桩深资料，荷载沉降?曲线)对西安黄土地基中的打入桩、静压桩、灌注桩的荷载传递机理进行了分析研究，认为用双曲线型的荷载传递函数模拟桩土之间的荷载传递函数是合适的，并用荷载传递分析的方法建立了计算p s曲线的数学模型及极限承载力的确定方法。 |
| 8. | Lime - soil compaction pile is one of the most normal and effective soil improvement methods in loess area , especially in collapsible loess ones . there is few analysis and study about the compaction characteristic of soil between piles when making holes . the evaluation methods about the compacted effect between piles are different in the various standards on soil improvement
灰土挤密桩作为黄土地区，特别是湿陷性黄土地区最常用、最有效的地基处理方法之一，但对桩间土在成孔过程中挤密性状的分析和研究不是很多，在历次规范中，对桩间土挤密效果的评价方法各不相同，也就是对桩间土中最具有代表平均挤密效果的点的选取存在差异。 |
| 9. | The experiential formula between kc and base resistance q from cpt and , the relationship between ke and c # ( strength of concrete ) are also created by fitting 94 pressed pile testing date . based on analyzing the compacting effects caused by driving pile in loess and it ' s influence on bearing capacity and settlement , another two disturbance parameters , c and e , are proposed for multiplying respectively the parameters of soil cohesive c and deformation modulus es to reflect this effect . by fitting 51 driven pile testing date , we created an experiential formula between the e and r ( the modulus ratio between pile and surrounding soil ) , also an experiential formula between the c and base friction resistance fs / pa from cpt of pile surrounding soil
在本文中分析了静压桩的沉桩挤土效应对其承载力与沉降特性的影响，在计算模型中引入了桩周土粘聚力c的修正系数k _ c和桩周土变形模量e _ s的修正系数k _ e来体现这种影响，通过对94根静压桩试桩资料进行拟合，建立了k _ c与桩端土静力触探的端阻q _ c之间经验公式以及k _ e与c # (混凝土标号)之间的对应关系。 |
| 10. | The integrate expressions of large strain are deduced by means of spm . and the difference of the soil compacting effects in the condition of large strain and small strain is analyzed . secondly , according to the analytical expressions of single jacked pile , the displacement fields of subsequent jacked pile due to the presence of adjacent pile are obtained
2 、在得到静压单桩挤土产生位移场的基础上，运用拉格朗日插值法得到了已存在桩的情况下压桩产生的土体位移场，并推导了二桩，排桩及静压群桩施工产生的迎桩面及背桩面位移场的解析式。 |
