本文主要研究单桩横向非线性动力响应问题。
Responses of the lateral nonlinear dynamics of single piles are studied in this dissertation.
研究了频域内半空间饱和土中单桩在瑞利波作用下的动力响应。
The frequency domain response of single pile embedded in half-space saturated soil and subjected to Rayleigh waves was investigated.
在此基础上得到了水泥土抗压强度平均值和单桩承载力的理论值。
On this basis, the mean value of the compression strength and the theoretical value of pile carrying capacity are gained.
因此，研究分析多年冻土地区单桩应力状态有着很重要的现实意义。
So, analysing the stress state of single pile foundation in permafrost area has realistic meanings.
并且研究了单桩在水平荷载下的特性以及影响单桩水平承载力的因素。
This paper also analyses the characteristics and influential factors of single pile under lateral load.
以土力学及弹性理论为基础，推导出了单桩荷载—沉降曲线的关系式。
Based on soil mechanics and elasticity theory, the relation of single pile load-settlement curve is derived.
通过竹节桩在实际工程中的应用，对单桩竖向承载力进行了试验研究。
The vertical bearing capacity of bamboo joint pile in the engineering was researched.
经单桩载荷试验和低应变桩身完整性检测，施工达到了令人满意的效果。
By the testing of single pile loading experiment and integrity of low strain pile, the construction reached a satisfied result.
根据最小势能原理，使用修正变分法来分析抗拔单桩和抗拔群桩的变形。
According to the principle of the minimum potential energy the deformation of single tension pile and pile groups was analyzed using a modified variational approach.
试验结果表明：桩周土的性质是影响单桩水平承载力和性状的主要因素。
As indicated by test the soil property surrounding the pile is the main factor affecting the horizontal bearing capacity of pile.
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。
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.
在桩基工程中，单桩竖向承载力的确定关系到设计是否安全和经济的重要问题。
Vertical bearing capacity of single pile relate to the important question whether the design is safe and economical or not in the pile foundation construction.
本文报道了上海地区粘土与粉砂组成的不均匀地基中的单桩承载力的研究工作。
The paper presents a study of the bearing capacity of pile in a no-uniform foundation composed of clay and silt in Shanghai area.
应用瞬态瑞雷波技术可快速检测桩周土的剪切波速，从而实现单桩承载力的检测。
Using the transient Rayleigh wave method can measure the shear velocity of site soil and estimate the bearing capacity of pile.
城市建设中高层建筑越来越多，基础大多采用单桩承载能力很高的人工挖孔灌注桩。
The high buildings are more and more in urban construction, most foundations are artificial excavating grout piles with high bearing capacity.
桩群的水流阻力比单桩的水流阻力要复杂得多，理论上解决桩群水流阻力目前还较困难。
The flow resistance of pile group is more complicated than that of single pile. It is difficulty to solve flow resistance of pile group theoretically at present.
应用瞬态面波测试技术可以快速检测周土剪切波速，从而可实现单桩承载力的无损检测。
Using transient surface wave exploration, the shear wave velocity of soil around pile can be tested, and the bearing capacity of piles can be determined.
通过变换矩阵递推求得层状地基中单桩的柔度系数和桩与桩相互作用的柔度系数解析公式。
The analytical formulas, for the flexibility factor of single pile and the piles interaction, are derived by the transfer matrix.
利用此基本解并考虑桩土位移协调条件，提出了层状地基中单桩扭转变形分析的解析方法；
These solutions are then combined with the displacement compatibility between the pile and the surrounding soil to analyze the torsional behaviour of a single pile.
水平受荷群桩，“正斜”单桩组成的群桩比直桩群桩和“负斜”单桩组成的群桩的承载力大。
Under lateral load, the positive battered pile group has bigger bearing capacity than the vertical and negative battered pile group.
打入式基桩施工引起的持续振动可引起桩周土液化，降低桩侧摩阻力，从而影响单桩承载力。
Owing to the liquefaction of soil around piles caused by sustained construction vibration the lateral resistance and bearing capacity of piles could be decreased.
本文方法既能计算单桩荷载传递又能预测单桩变形特性。算例结果表明：本方法有较高的计算精度。
Both load transfer characteristic and settlement characteristic of single pile can be predicted using this method, through a case, have shown that the new method is rational.
群桩中桩身压缩由单桩静载试验得到的桩顶沉降与桩端沉降之差求得，群桩的桩端沉降由分层总和法计算。
The compression of the pile in the pile group can be determined by static load test. The settlement of the pile toe is calculated by layer wise summation method.
单桩静载荷试验的试验环境虽然对极限承载力影响较小，但是对试桩的荷载位移曲线的影响是不可忽视的。
Although there is little effect to limited capacity by circumstance of load test, yet is not ignore effect to the P-S curve of single pile.
在分析单桩的载荷传递机理、单桩的破坏模式的基础上，重点探讨了单桩沉降的载荷传递法和剪切变形法。
On the basis of load transfer mechanism and destruction patterns of single pile, load transfer method and shearing deformation method for subsidence computing of single pile are mainly discussed.
文章介绍了一个完整的工程实例，并给出了处理后的单桩和单桩复合地基静载荷试验数据和沉降观测数据。
By using a complete engineering example, this paper gives the data of static load test and the data of settlement observation of treated single pile and single pile complex foundation respectively.
根据单桩静载荷试验的结果，全面系统地分析了挤扩支盘桩的承载机理、荷载传递性状和FEM模拟结果。
Bearing mechanism, loading transfer behavior and results of FEM simulation of squeezed branch pile are analyzed systematically in this paper based on results of static loading test.
根据单桩静载荷试验的结果，全面系统地分析了挤扩支盘桩的承载机理、荷载传递性状和FEM模拟结果。
Bearing mechanism, loading transfer behavior and results of FEM simulation of squeezed branch pile are analyzed systematically in this paper based on results of static loading test.
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