Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

The Application of Shallow Seismic Prospecting Methods to Active Fault Dectection in Cities

He Zhengqin, Ye Tailan, Ding Zhifeng and Sun Weiguo (Institute of Geophysics,CBS,Beijing,100081)  
Through research on an amount of earthquake disasters,it shows that when an earthquake occurrs,houses or buildings located on active faults of surface will suffer the most serious damage from earthquake,especially after the occurrence of the Northridge earthquake,USA,Hanshin earthquake,Japan and Taiwan Chi Chi earthquake,China in the latter of the 1990s, governments and seismologists of many countries in the world have clearly recognized that it is important and urgent to make active fault detection and research in cities.Urban active fault detection has important actual significance for urban planning,earthquake resistance,reducing damages of urban facilities from earthquakes.The seismic prospecting of shallow high resolution is one of the effective and reliable methods in urban active fault detection,and may survey the location of active faults underground,buried depth,attitude and space distribution.Because strong interference background of urban environments and the complexity of field conditions,we must, in view of actual situation,adopt a series of effective methods with raising resolution rate and signal noise ratio in the links of observational systems,seismic focus, data collection and proccessing methods etc,so as to obtain reliable detection results.This paper discusses difficult points in technology and relative resolving ways of shallow seismic prospecting methods in urban active fault detection,and introduces some methods with practicality in combining with some experiences which we have gained in shallow seismic prospecting in urban areas in recent years.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved