中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2010, Vol. 29 ›› Issue (6): 938-941.

• • 上一篇    下一篇

数值模拟法确定饱和土强夯施工参数

郑红娟1,周世良2   

  1. 1.南通航运职业技术学院,江苏 南通 226010; 2.重庆交通大学,重庆 400074
  • 收稿日期:2010-07-15 修回日期:2010-09-25 出版日期:2010-12-15 发布日期:2015-01-22
  • 作者简介:郑红娟(1981—),女,江苏南通人,硕士,主要从事港口、海岸及近海工程专业的教学与研究工作。E-mail:xiyueyangcle@126. com。
  • 基金资助:
    重庆市教委科技项目( 040406) ; 重庆市水利水运工程重点实验室开发基金项目( SLK2006A04)

Study on Confirmation of the Construction Parameter of Saturated Soil Reinforced by Dynamic Compaction

ZHENG Hong-juan1,ZHOU Shi-liang2   

  1. 1.Nantong Shipping College,Nantong 226010,Jiangsu,China; 2.School of River and Ocean Engineering,Chongqing Jiaotong University,Chongqing 400074,China
  • Received:2010-07-15 Revised:2010-09-25 Online:2010-12-15 Published:2015-01-22

摘要: 探讨了用数值模拟确定饱和地基土强夯的施工参数方法:根据孔隙水压力增量随夯击次数的变化情况确定 强夯的最佳夯击次数;根据孔隙水压力消散情况确定强夯的间歇时间;根据土体沿深度方向的竖向变形确定土体有 效加固深度;根据沿水平方向的竖向变形确定强夯的单点加固范围。研究结果为强夯设计和加固效果评价提供有力 的依据。

关键词: 强夯, 饱和土, 数值模拟, 施工参数

Abstract: Construction parameter of saturated soil reinforced by dynamic compaction through numerical simulation was discussed; the optimal rammer times were determined according to the varying curve of the increase of pore water pressure along with the rammer times; interval time of dynamic compaction was confirmed based on dissipation of water pressure of the pore; effective consoliation depth soil was ascertained according to vertical deformation of the soil; consolidation range of dynamic compation was determined according to vertical deformation of the soil along with horizontal direction,which could provide basis for dynamic compaction design and reinforcement effect evaluation.

Key words: dynamic compaction, saturated soil, numerical simulation, construction parameter

中图分类号: