土工基础

›› 2012, Vol. 26 ›› Issue (6): 49-51.

• 工程实录 • 上一篇    下一篇

平原地区地震时隐伏断层对地面破坏之影响

詹金林   

  1. （上海现代建筑设计集团建设工程咨询有限公司，上海 200041）
  • 收稿日期:2012-03-12 出版日期:2012-12-20 发布日期:2012-12-25
  • 作者简介:詹金林(1977-)，男，陕西商洛人，硕士，工程师，研究方向为工程总承包项目管理与岩土工程设计、咨询。

The Impact of Hidden Faults on the Ground Surface Damage in the Seismic Events

ZHAN Jinlin   

  1. (Shanghai Xian Dai Architecture, Engineering & Consulting Co., Ltd, Shanghai, 20041)
  • Received:2012-03-12 Online:2012-12-20 Published:2012-12-25

摘要： 大多数平原城市地下存在隐伏断裂，表面覆盖不同厚度、不同岩性土层，在地震中对此如何评价，仍然是工程建设中急需解决的问题。采用有限单元法对隐伏发震断裂上覆土层的破坏性状分别进行了静力、动力分析，对不同烈度、不同倾角的断裂层进行了组合分析，共模拟分析了60种不同工况在地震过程中的变形破坏过程，研究岩体断裂对上覆土层在地震过程中的破坏范围及变化规律。

Abstract: The large cities on the plains are often located above the geological faults. The evaluation of these faults with different bedrock types and different overburden soil thickness is very important in the civil engineering. The performance of the soils above the faults under the static seismic conditions is modeled in this paper by using the finite element approach. The objective of the analyses is to real the impact of the bedrock faults on the damage area of the overburden soil during the seismic events. A total of 60 different combinations of faults with different inclination angles and under different earthquake magnitudes are analyzed.

Key words: Bedrock Faults, Ground Subsidence, Numerical Analysis, Inclination of Faults