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1·The result shows that treatment of liquefiable foundation with the gravel piles has great advantage and the liquefaction potential reduced.

研究成果表明，干振碎石桩用于处理液化地基具有较大的优越性。

2·The application of gravel pile composite foundation is extensive in practical engineering for reinforcing liquefiable sandy ground due to its effectiveness and adaptability.

用碎石桩复合地基处理液化砂土是非常有效和适用的，在实际工程中已得到广泛的应用。

3·Pile foundation is an important measurement for improving liquefiable subsoils. Rainily the design methods in this field, published in seismic regulation and codes, are various.

桩基是处理液化地基的常用方法，但在抗震设计方法上尚未统一。

4·Catastrophic damages to the ground structures can be caused by large ground deformation due to seismic liquefaction. Therefore liquefiable ground in earthquake must be improved.

地震液化导致的大变形常会使结构产生十分严重的破坏，因此对潜在液化的地基必须进行处理。

5·By using the nonlinear layer-element analysis model and its theory which is proposed by the authors of this paper, the reinforcement of liquefiable foundation is analyzed and studied.

运用作者提出的桩上相互作用动力非线性层元分析模型和建立的理论公式，对可液化地基的加固问题进行了分析研究。

6·The dynamic interaction of pile-soil-structure in liquefiable site, especially, the seismic response on pile, are studied with the method of whole dynamic finite elements under seismic condition.

采用挤扩支盘桩-土-结构体系进行振动台模型试验，以了解在地震动激励下该体系的抗震性能以及支盘桩对结构体系的抗拉、抗压及抗扭曲的作用。

液化的

1·By using the nonlinear layer-element analysis model and its theory which is proposed by the authors of this paper, the reinforcement of liquefiable foundation is analyzed and studied.

运用作者提出的桩上相互作用动力非线性层元分析模型和建立的理论公式，对可液化地基的加固问题进行了分析研究。

2·The result shows that treatment of liquefiable foundation with the gravel piles has great advantage and the liquefaction potential reduced.

研究成果表明，干振碎石桩用于处理液化地基具有较大的优越性。