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Mechanics in Engineering ›› 2004, Vol. 26 ›› Issue (6): 0-0.doi: 10.6052/1000-0992-2004-355

• Application study •    

A NEW APPROACH TO EARTHQUAKE PREDICTION---LOAD/UNLOAD RESPONSE RATIO (LURR) THEORY

  

  • Received:2004-09-02 Revised:2004-10-09 Online:2004-12-10 Published:2004-12-10

Abstract: From the viewpoint of mechanics, the essence of seismogenic process is the damage evolution of the focal media, so it is mainly a mechanical process. But the earthquake prediction is different from other mechanics problems in engineering. The constitutive law, boundary condition, initial condition and the history of some mechanics quantities (such as rheology) must be known in a resolvable mechanics problem in engineering. But in earthquake generation they are unknown or almost unknown, and only the variation of some physical quantities in the earth crust can be measured. From this consideration, the concept of load/unload response ratio (LURR) was proposed as a new approach to earthquake prediction. In this paper the basic concepts, case-examination and some new results of LURR are introduced.

Key words: earthquake prediction, load/unload response ratio (LURR), damage evolution