|
|
|
| Geophysical Prospecting for Xiangcan Submarine Tunnel in Xiamen |
| LI Jian, Wei Dong-hua, Cao Yun-yong, Du Hua-guang |
| China Railway Eryuan Engineering Group Co. Ltd,Chengdu, Sichuan 610031 China |
|
|
|
|
Abstract Research purposes：For the geological prospecting for Xiangcan Submarine Tunnel in Xiamen ( the first submarine tunnel in mainland of china), the research is done on how to effectively solve the engineering geological problems with geophysical prospecting method, such as how to collect, process and interpret the data when using the seismic reflection prospecting for submarine tunnel, for the purpose of reducing the expense of prospecting and shortening the prospecting period.
Research conclusions：The data collection must be conducted during sea slack tide. The non-regulation observation system of reflection seismic exploration must be transferred to regulation observation system, and quality of data processing can be improved by density of the velocity analysis points. In the data interpretation, the characteristics corresponding to the different geological conditions in the time reflection profiles are summed up. Namely, the reflection line-ups of nicer continuity, higher frequency and lower amplitude correspond to the seabed with thicker silt, the indication of three continuous reflection line-ups correspond to the stratum covered by soil, indication of two continuous reflection line-ups correspond to the stratum with no cover of soil, and when the reflection line-ups occurs twist or disconnection, it corresponds to the cranny or the rock-vein.
|
|
Received: 02 February 2010
|
|
|
|
|
|
[ 1 ] 中交第二公路勘察设计研究院. 厦门市东通道工程预可行性研究报告[Z].武汉: 中交第二公路勘察设计研究院, 2002.
China Highway Eryuan Engineering Group Co. Ltd. The Researching Record on East Chunnel in Xiamen at Prophase of Peasible Investigation[Z]. China Highway Eryuan Engineering Group Co. Ltd, 2002.
[ 2 ] 广东核力工程勘察院. 厦门市东通道工程项目预可行性研究阶段工程地质综合勘察报告[Z]. 广州: 广东核力工程勘察院, 2001.
Guangdong Nuclear-powered Engineering Geological Exploration Institute. The Record about Comprehensive Geological Exploration on East Chunnel in Xiamen at Prophase of Peasible Investigation[Z]. Guangdong Nuclear-powered Engineering Geological Exploration Institute, 2001.
[ 3 ] 中国地震局地球物理研究所. 厦门市东通道工程场地地震安全性评价报告[R]. 北京: 中国地震局地球物理研究所, 2002.
Institute of Geophysics, China Earthquake Administration. The Record on Site about Seismic Security Evaluation on East Chunnl in Xiamen[R]. Beijing: Institute of Geophysics, China Earthquake Administration, 2002.
[ 4 ] 北京大学, 等. 地震勘探数字技术[M]. 北京: 科学出版社, 1974.
Beijing University, etc. Numeric Technology about Seismic Exploration[M]. Beijing: Scientific Publications Inc, 1974.
[ 5 ] 长春地质学院, 成都地质学院, 武汉地质学院. 地震勘探—原理和方法[M].北京: 地质出版社, 1980.
Changchun Institute of Geology, Chengdu Institute of Geology, Wuhan Institute of Geology. Seismic Exploration-Principle and Method[M]. Beijing: Geological Publications Inc, 1980.
[ 6 ] 李政文, 赵志超. 地震勘探资料解释[M]. 北京: 地质出版社, 1988.
Li Zhengwen, Zhao Zhichao. Seismic Data Interpretation[M]. Beijing: Geological Publications Inc, 1988.
[ 7 ] Claerout J F. Fundamenttals of Geophysical Data Processing. Blackwell Scientific Publications Inc. 1976.
[ 8 ] Telford W M, etc. Applied Geophysics. Cambridge University Press, 1984.
[ 9 ] Yilmaz O. Seismic Data Processing. Tusa, Society of Exploration Geophysicists, 1987.
[ 10 ] Yilmaz O. Seismic Data Analysis, Second Edition. Tusa, Society of Exploration Geophysicists, 2001.
|
|
|
|
2010, Vol. 27 
