The chaotic motion problem for the Longitudinal vibration of a nonlinear viscoelastic pile subjected to an axial periodic force is investigated.
研究了轴向周期载荷作用下非线性粘弹性嵌岩桩纵向振动的混沌运动。
Longitudinal vibration of pile with variable impedance (variable sections or modulus) in layered soil undergoing arbitrary load is theoretically investigated.
对成层土中变阻抗(变模量或变截面)桩在任意激振力作用下的纵向振动特性进行了研究。
Longitudinal vibration of an integral pile in an uniform soil with end bearing boundary or elastic bottom boundary undergoing vertical harmonic load is theoretically investigated.
分别对均质土中完整端承桩和弹性支承桩在垂直谐和激振力作用下的纵向振动特性进行了研究。
Fast and accurate alignment with pile location: the pile driver can move along the cross axis and can perform longitudinal and transverse movement when aligning with the pile location.
快速准确找准桩位：桩机设有沿十字轴线运行特点，对准桩位时可同时进行纵横移和回转。
The utility model is composed of a rail, a longitudinal spacing board, a scribing assembly, a transversal spacing pile, a set screw, etc.
它是由导轨、纵向限位板、划线组件和横向限位桩以及顶丝等部件组成。
The frequency response function, frequency-domain and time-domain expressions for the longitudinal vibration velocity at the pile top were obtained further.
研究了渐缩自由桩和渐扩自由桩的桩顶纵向振动速度时域曲线特征；
This pile box foundation is a box typed structure which consists of the bottom plate, top plate, outside wall and inside longitudinal and lateral walls, and by which the upper loadings are distrib…
桩-箱基础系由底板、顶板外墙、内纵横墙构成了箱形结构，把上部荷载分配给桩。
This pile box foundation is a box typed structure which consists of the bottom plate, top plate, outside wall and inside longitudinal and lateral walls, and by which the upper loadings are distrib…
桩-箱基础系由底板、顶板外墙、内纵横墙构成了箱形结构，把上部荷载分配给桩。
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