The negative friction force has a close relation with soil qualit.
以冻结法施工的某矿副井为例 ,编制有限元程序 ,对冻结壁融沉作用在井壁上负摩擦力进行弹塑性分析 ,初步得到该负摩擦力的分布规律及影响因素 ,即该融沉负摩擦力在深度方向上由地表到中上部呈递增 ,然后呈递减 ;融沉负摩擦力与土层的性质、水平侧压力大小、融沉量等因素密切相关。
After performing the inverse Laplace transform,the variations of negative friction force and the dissipation of the pore pressure in the time-space domain for a pi.
根据Biot固结理论,采用Laplace和Hankel变换方法得到了半空间饱和土体内受垂直载荷作用下的变换域内基本解,再根据虚拟桩法,得出了单桩的第二类Fredholm积分方程,最后通过对积分方程的数值求解得出了在圆形载荷作用下,单桩桩侧的负摩擦力以及桩的孔压消散变化的情况。
Design of negative friction of pile foundation and its application;
关于桩基础负摩擦力设计和应用实例报告
By applying theories of Fuzzy sets,proposal is offered of an analytic method of Fuzzy inversion of negative friction on shafts through de watered subsiding grounds.
采用模糊集理论，提出了一种模糊反演疏水沉降地层井筒负摩擦力的分析方法。
Another procedure was compiled based on the load transfer function method to calculate the negative friction on the displacement pile which was induced by the soil reconsolidation around the pile.
基于比奥固结理论和ADINA有限元程序,分析了打桩完成后土中超孔隙水压力的消散和桩周土随时间固结沉降情况;然后结合荷载传递函数法,编制计算程序,对某一具体工程桩周土体重固结引起的在挤土桩上产生的负摩擦力及其时效性进行了研究。
Discussion on negative frictional force of big-diameter pile and its shape & properties;
大直径桩的负摩擦力及性状的探讨
On the basis of testing results,the authors analyse the reasons of shaft lining fracture,such as excessively practical frozen pressure and unfavourable influence of the negative frictional force,and put forward some of the methods which could be used to prevent shaft cining fracture.
在此基础上,分析了井壁破坏的原因,如实际冻结压力偏大,负摩擦力的不利影响等,提出了防止井壁破坏的措施。
In-situ tests on negative skin friction of piles in high-piled wharf In-situ test in Shanghai Yangshan Deep Water Port Engineering;
高桩码头桩基负摩擦力现场试验研究——上海洋山深水港工程现场试验
Analysis of cause of formation,mechanism and harm of negative skin friction of pile foundation;
桩基负摩擦力的成因、机理与危害分析
Studies of relation between drag load and time of negative skin friction of pile foundation
桩基负摩擦力的下拉荷载与时间关系研究
Study on Horizontal Bearing Capacity and Negative Skin Friction of Port Engineering Piles;
港口工程桩基水平承载力和负摩擦力的研究
Count and Study on the Collapsible and Negative Friction of Pile in Collapsible Loess Region;
湿陷性黄土地基桩基湿陷负摩擦力计算与研究
Study on the Negative Skin Friction of Single Piles during the Consolidation of Ground;
堆载固结过程中单桩负摩擦力性状研究
Studies of relation between drag load and time of negative skin friction of pile foundation
桩基负摩擦力的下拉荷载与时间关系研究
Negative friction force computation and analysis for a foundation pile in Rui'an urban flood control project
瑞安城市防洪工程某基桩负摩擦力计算与分析
the maximum additional force of sand soil is 1.34 and 2.25 times the clay;
砂土的最大负摩擦力分别是粘土、砂质粘土的 1.34 和 2.25 倍;
Model Test and Numerical Analysis of Pile's Negative Friction under the Unsymmetrical Backfill
“不对称”填土作用下桩基负摩擦力试验研究与数值模拟
"Friction, or resistance to motion, increases with the load. The higher the load, the greater the friction,"
摩擦力或运动阻力增加了负载,负载越大,摩擦力也越大。
pertaining to or worked or produced by friction.
关于摩擦或摩擦力，由摩擦或摩擦力产生。
Study on Friction Torque Loading with an Electro-hydraulic Load Simulator
基于电液负载模拟器的摩擦力矩加载研究(英文)
ultimate friction capacity [ground]
极限摩擦力〔土地〕
The forces due to friction are called frictional forces.
由于摩擦而产生的力称之为摩擦力。
frictional prestress loss
摩擦引起的预应力损失
head of fluid frictinal loss
流体摩擦阻力损失压头
Goldberg-Mohn friction
戈德堡－莫恩摩擦力
The friction force is therefore called a nonconservative or a dissipative force.
因此，摩擦力称为非保守力或耗散力。
For sliding contact, the coefficient of kinetic friction Uk is defined as the ratio of the frictional force to the normal force.
滑动接触时，动摩擦系数Uk的定义是摩擦力与法向力的比率。
