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同震位移研究对地震过程模拟、地震机理研究和未来地震危险区评价具有重要意义。作者系统地梳理和总结了多种同震位移预测模型,包括Wells模型、陈培善模型、d_(max)(M)模型、Segall模型和Okada模型,并对各种模型的原理和理论公式进行了简要总结回顾,比较了各模型的优缺点及适用条件。同时作者将21世纪以来国内具有详细地表水平破裂的地震信息作为计算参数,对比分析了3种常用模型的预测结果,为日后选定不同条件下的同震位移场分布研究提供参考。
The study of coseismic displacements is of great significance for the simulation of seismic processes, the study of seismic mechanisms and the evaluation of future seismic hazard zones. The author systematically combs and summarizes a variety of coseismic displacement prediction models, including the Wells model, Chen Peishan model, d max (M) model, Segall model and Okada model, and briefly describes the principles and theoretical formulas of various models Summarizes the review, compares the advantages and disadvantages of each model and applicable conditions. At the same time, the author takes the earthquake information with detailed surface rupture in China since the 21st century as the calculation parameter, and compares the prediction results of three commonly used models to provide references for the research on the distribution of coseismic displacement fields under different conditions selected in the future.