Assuming no slippage occurred on the interface between pile and soil, an equivalent equation of displacement coordination is obtained to constitute a new method calculating settlement of single pile.

在假定桩土接触面不产生滑移的条件下，确定在桩基础沉降过程中与能量守恒定律等效的位移协调方程，并在此基础上建立了一种新的单桩沉降计算方法。

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Based on the wave equation in unsaturated soil, the dynamic response of a pile under transient torsional loading was theoretically investigated.

基于己建立的非饱和土中的波动方程，研究了瞬间扭转荷载作用下桩的动力响应问题。

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Secondly, with using the design of pile foundation by M-method, the stiffness equation of pile under the interaction of piles and soils is derived.

其次，桩基与土的相互作用按弹性桩的线性地基反力假设法中的m法计算，推导出了桩土相互作用下桩基单元刚度方程；

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Not knowing if the house would be lost or the utilities shut off could force many significant others, spouses and children to pile onto the equation with their own additional negative stress.

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