The main reason is that the cutting intension of soil reduced due to vibrating, and another one is the deducing of friction between bucket and soil.
振动使土壤的抗剪强度下降是切削阻力下降的主要原因，同时，铲斗与土壤间摩擦力和粘附力下降，也是切削阻力下降的原因之一。
The friction mobilized between the soil and reinforcement is an import ant design parameter of reinforced structure.
筋土之间的摩擦力是加筋土结构的一个重要设计参数。
For analyzing the adhesion between soil and tillage tools, the profiles of pressure on the wave bulldozing plates were calculated, and we located the position of the maximum friction on the surface.
计算了波纹板表面的压力分布，并指出在土壤与农机具粘附系统中波纹形表面摩擦力最大的位置。
We should know the interface characteristics of reinforced soil to design the frame of it. The most important parameter is the magnitude and change of friction.
加筋土结构的设计需要了解筋土界面特性，其中筋土界面摩擦力的大小及变化是进行结构稳定分析最重要的参数。
The single pile is simplified to elastic shaft elements suffering skin friction and the soil mass is considered to be homogeneous isotropic elastic semi space.
将单桩简化为受侧摩阻力的弹性杆单元，土体简化为均质弹性半空间无限体。
Soil resistance and pastes cohesion and internal friction Angle, is the two indicators which evaluate the performance of soil shear.
土壤抗剪黏聚力和内摩擦角，是评价土壤抗剪性能的两项指标。
During normal construction process, the friction force between shield and soil exhibited greater influence on surface deformation compared with bulkhead additive thrust.
在正常施工时，盾壳与土体之间的摩擦力对地面变形的影响远大于正面附加推力。
Another is caused by internal friction in soil and external friction between soil and track-plate face.
其二为由土壤内摩擦力及土壤对履带板的外摩擦力所产生的推进力。
Results show that degree of compaction, compaction water content and saturation state of compacted soil have influence on cohesion and Angle of friction of clay, thereby on the shear strength of clay.
试验表明，压实度、压实含水量及土体饱和状态对粘聚力和内摩擦角有影响，从而使抗剪强度也受到三因素的影响。
The reason for the appearance of internal friction in tubular piles is that the relative displacement or its trend exists between the soil core and piles.
筒桩与土芯存在相对位移趋势以及它们之间相对位移的发生是筒桩内侧摩阻力产生的原因。
Based on the load tests of 8 large diameter belled piers and 2 friction piles, the vertical bearing behavior of the belled pier in non-collapsing loess-like soil is studied.
根据同一试验场地厚层非湿陷性黄土状土中8根大直径扩底墩、2根等直径桩的竖向承载力静载试验，对扩底墩的竖向承载性状进行了研究。
When it was tensile failure, the curve of stress-strain relationship was softening and the reinforcement only increased the angle of internal friction of soil.
当发生拉断破坏时，其应力-应变曲线为软化型，此时加筋仅增加土体的粘聚力分量；
The difference between inner friction angel of sandy soil and natural slope angel of sandy soil is also put forward in this paper.
本文论述砂土内摩擦角的测定方法，及砂土内摩擦角与砂土天然坡角的区别。
The result shows that the impact velocity of initial yield is very small for the soil, and the cohesion has an obvious influence on it while the internal friction Angle does relatively small.
研究结果表明：土体初始屈服冲击速度非常小，其中黏聚力对其有较大影响，而内摩擦角对其影响相对较小。
Extreme type I isn′t equal to be probability distribution of cohesion and internal friction angle of clinosol and residual cohesive soil surrounding rock.
极值I型分布不适宜作为坡残积黏土质围岩黏聚力、内摩擦角的概率分布；
If the geology condition is better, the physical model of man_dug pile can be regarded as end_bearing pile by reasonable simplification without considering the friction resistance of the soil.
当地下条件较好时，人工挖孔桩通过合理的简化，可将其嵌岩灌注桩物理模型简化为端承桩，暂不考虑上部桩周土摩阻力。
The effects of soil friction Angle and coefficient of consolidation on pile ultimate bearing capacity were both analysed.
固结系数决定着桩的极限承载力在初期的发挥，但并不影响桩的最终极限承载力。
Axial force transmission, distribution of skin friction, tip resistance of pile, as well as tress ratio between pile and soil are changing with pillow.
研究了褥垫层厚度变化对桩身轴力传递、桩侧摩阻力分布、桩端阻力发挥、桩土荷载分担及桩土应力比的影响。
The computed results of FEA agree well with that of model test. The soil pressure and skin friction distributions on cylindrical structure are discussed in detail on the different conditions.
针对现有试验情况，对于不同的基础垫层、不同的圆筒内径及筒内不同的填土条件，进行了分析比较。
The greatly reduced capacity of a single pile resulting from the negative friction leaves the end-bearing pile unsuitable in the backfilling soil.
实例分析表明，由于桩侧负摩阻力的影响，单桩承载力大为降低。产生负摩阻力的土层，不宜采用端承型桩基。
Finally the engineering design suggestion of three commonly used diameter pipe segments is given through changing their length and the friction coefficient between the slip block and the soil surface.
最后提出了调整隔震管段长度及支座滑块与地面之间摩擦系数，对三种常用管径管道跨断层设计的建议。
The relationship of skin friction and relative displacement between the pile shaft and the surrounding soil is idealized as perfectly elastoplastic.
通过假定桩土界面摩阻力与相对位移为理想弹塑性关系；
The relationship of skin friction and relative displacement between the pile shaft and the surrounding soil is idealized as perfectly elastoplastic.
通过假定桩土界面摩阻力与相对位移为理想弹塑性关系；
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