›› 2012, Vol. 26 ›› Issue (6): 88-91.

• 工程实录 • 上一篇    下一篇

防波堤工程软土地基排水固结处理的数值分析

郭少龙,蒋学炼,鹿 群,吕全乐   

  1. (天津城市建设学院 天津市软土特性与工程环境重点实验室,天津 300384)
  • 收稿日期:2012-06-04 出版日期:2012-12-20 发布日期:2012-12-25
  • 作者简介:郭少龙(1988-),男,汉族,河南洛阳人,硕士研究生,研究方向为岩土工程。
  • 基金资助:

    基金项目:天津市自然科学基金(10JCYBJC03700)、天津市高等学校科技发展基金(20080906)

Numerical Studies on the Improvement of Breakwater Soft Soils Using PVD

GUO Shaolong, JIANG Xuelian, LU Qun, LV Quanle   

  1. (Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment, Tianjin Institute of Urban Construction,Tianjin 300384)
  • Received:2012-06-04 Online:2012-12-20 Published:2012-12-25

摘要: 分析了某防波堤工程软土地基产生弱化的原因及相应工程措施,对塑料排水板的加固效果进行了有限元数值分析。基于固结度等效原则,将三维砂井地基转换为平面应变问题。利用现场实测数据验证了数值模型的有效性,探讨了产生误差的原因。计算结果表明,排水板能够有效缩短软土固结排水时间,减少工后沉降。

关键词: 防波堤, 软土地基, 塑料排水板, 排水固结, 数值模拟

Abstract: The factors that might contribute to the weakening of the soft soils underneath the breakwater dike are discussed and the possible solutions are also presented in this paper. The improvement effect of using Prefabricated Vertical Drains (PVD) has been numerically analyzed. Based on the equivalent degree of consolidation, the threedimensional problem is converted into plane strain problem. The numerical analyses are validated by the insitu measurement.

Key words: Breakwater, Soft Soil Foundation, Plastic Drain Plate, Drainage Consolidation, Numerical Simulation