|
|||||
|
|
| 应用断层泥石英形貌测龄评价桥基断裂活动性 | |
| 引用本文： | 汪明武,章杨松,李丽,罗国煜. 应用断层泥石英形貌测龄评价桥基断裂活动性[J]. 合肥工业大学学报(自然科学版), 2002, 25(3): 335-339 |
| 作者姓名： | 汪明武 章杨松 李丽 罗国煜 |
| 作者单位： | 1. 合肥工业大学,土木建筑工程学院,安徽,合肥,230009 2. 南京理工大学,土木工程系,江苏,南京,210094 3. 合肥工业大学,资源与环境工程学院,安徽,合肥,230009 4. 南京大学,地球科学系,江苏,南京,210093 |
| 基金项目： | 国家教育部博士点基金资助项目 ( 970 2 8413)，安徽省自然科学基金资助项目 ( 0 10 45 40 9) |
| 摘 要： | 简介了断层泥石英形貌测龄的基本原理 ,并实际应用于润扬大桥桥基断层的年代测定。该大桥原有的断层测龄资料都是利用热释光同位素测年法 ,对同一断层会出现不同测年结果 ,致使设计单位难以决断 ,应用该文提出的方法解决了上述难题。研究成果为大桥区主要断层的活动性评价、场区稳定性评价和大桥合理设计提供了可靠地质依据 ,对以后建在断裂带上的大型工程的断层测龄研究也有着重要的参考价值。 |
| 关 键 词： | 断层泥 扫描电镜 热释光 活动性 石英形貌 测龄 |
| 文章编号： | 1003-5060(2002)03-0335-05 |
| 修稿时间： | 2001-12-13 |
Application of fault dating by the surface textures of quartz grains from fault gouges to the assessment of fault activity in the foundation area of a bridge |
|
| WANG Ming-wu ,ZHANG Yang-song ,LI Li ,LUO Guo-yu. Application of fault dating by the surface textures of quartz grains from fault gouges to the assessment of fault activity in the foundation area of a bridge[J]. Journal of Hefei University of Technology(Natural Science), 2002, 25(3): 335-339 | |
| Authors: | WANG Ming-wu ZHANG Yang-song LI Li LUO Guo-yu |
| Affiliation: | WANG Ming-wu 1,ZHANG Yang-song 2,LI Li 3,LUO Guo-yu 4 |
| Abstract: | The principle of fault dating by the surface textures of quartz grains from fault gouges is introduced in this paper. The problem of obtainig different ages through dating by the thermoluminescence(TL) method for the same fault and the disputation of fault activity in the area of Run-Yang bridge foundation have been solved by the method presented in the paper. This study provides a geological basis for the activity evaluation of major faults and the assessment of site stability as well as the rational design of the oversize bridge built on the fault zone. And this study will be also valuable for the fault dating of large-scale engineering projects. |
| Keywords: | fault gouge scanning electron microscope(SEM) thermoluminescence(TL) activity topotaxy on the surface of quartz fragment dating |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |