中文摘要：

液化缓解的石头专栏改进地面的评估和设计是为实践的状态的挑战性的期。在这份报纸，一个shear 波浪基于速度的途径基于液化抵抗( CRR )的明确的关联被建议砍波浪速度( V _{沙的土壤的 s} )-void 比率(e)，并且当时，在这条途径的参数的价值为初步的设计目的被推荐地点特定的价值不是可得到的。改进前和改进以后的液化评估和石头专栏设计的详细过程被给。根据这条途径，地面改进的要求的水平将被遇见一次目标 V _{土壤的 s} 高足够被提起(即，不亚于批评速度)抵抗根据 CRR-V _s 关系，然后这个要求被转移到目标虚空比率的控制(即，批评 e )根据 V _s -e 关系。当这条途径依靠包围土壤的 densification 而不是完全改进的地面并且从本质上讲是保守的， densification 机制和效果的特定的考虑被给，并且排水的效果和石头列的加强也被讨论。在印度尼西亚的一个热发电厂的案例研究被介绍，在改进的列扎根了的石头的有效性被建议 V _s -based 方法并且与基于 SPT 的评估相比。这改进地面表现了很好并且没在随后的强烈地震期间经历液化。

英文摘要：

The evaluation and design of stone column improvement ground for liquefaction mitigation is a challenging issue for the state of practice. In this paper, a shear wave velocity-based approach is proposed based on the well-defined correlations of liquefaction resistance （CRR）-shear wave velocity （V）-void ratio （e） of sandy soils, and the values of parameters in this approach are recommended for preliminary design purpose when site specific values are not available. The detailed procedures of pre- and post-improvement liquefaction evaluations and stone column design are given. According to this approach, the required level of ground improvement will be met once the target V of soil is raised high enough （i.e., no less than the critical velocity） to resist the given earthquake loading according to the CRR-V relationship, and then this requirement is transferred to the control of target void ratio （i.e., the critical e） according to the V-e relationship. As this approach relies on the densification of the surrounding soil instead of the whole improved ground and is conservative by nature, specific considerations of the densification mechanism and effect are given, and the effects of drainage and reinforcement of stone columns are also discussed. A case study of a thermal power plant in Indonesia is introduced, where the effectiveness of stone column improved ground was evaluated by the proposed V-based method and compared with the SPT-based evaluation. This improved ground performed well and experienced no liquefaction during subsequent strong earthquakes.