煤田地质与勘探2023，Vol.51Issue(12)：1-16,16.DOI:10.12363/issn.1001-1986.23.12.0805
活动断层研究进展及其科学前沿问题讨论
Advances in research on active faults and exploration of relevant frontier scientific problems
摘要
Abstract
This study reviewed the approval and initiation processes and major research contents of China's active fault-related projects,such as the urban active fault survey projects,large-scale mapping programs of active faults,and the earthquake hazard assessment of active faults in key earthquake monitoring and prevention areas.By combining the sci-entific investigation results of the surface rupture zones induced by strong earthquakes over the past 20 years,this study elaborated on significant advances achieved in the following aspects:the survey and positioning techniques for con-cealed active faults under strong-noise and weak-signal conditions,the quantitative identification techniques for fault activity,theories and methods for earthquake hazard assessment,whole-process multi-source data management tech-niques,and the construction of technical standard systems for active fault surveys.Furthermore,this study proposed a novel dynamic uplift model of the Qinghai-Tibet Plateau,the cascading rupture mechanism of active faults and the the-ory on the origin of strong earthquakes they induce,earthquake rupture localization characteristics and related setback theory,and geological identification indicators for high-magnitude earthquakes and their application in determining high-magnitude earthquake hazard zones.As a result,it developed new theories,methods,and concepts for slide behavior and setbacks concerning active faults,earthquake hazard prevention,and earthquake monitoring and prediction.Besides,this study explored some scientific and technical problems that need to be urgently solved in terms of active fault surveys and research,including the uncertainty of quantitative parameters of fault activity,the cascading rupture conditions of adja-cent fault segments and the magnitude prediction of great earthquakes,the quantitative evolutionary characteristics of geological indicators,the simulation of strong ground motion and related earthquake hazard prediction based on a 3D active fault model,and the faulting resistance of major projects across active faults.Last,this study proposed that China should further enhance the survey and mapping of active faults,as well as the management of related results,and main-tain internationally leading advantages in urban active fault survey,large-scale mapping,and the exploration of relation-ships between deep and shallow structures,thereby playing a leading role in international earthquake hazard prevention,along with earthquake monitoring and prediction with physical significance.关键词
活动断层/探测技术/地震破裂局部化特征/研究进展/科学问题Key words
active fault/survey technique/earthquake rupture localization/advance in research/scientific problem分类
天文与地球科学引用本文复制引用
徐锡伟,李峰,程佳,刘保金,陈桂华,李康,任俊杰,贾启超..活动断层研究进展及其科学前沿问题讨论[J].煤田地质与勘探,2023,51(12):1-16,16.基金项目
国家自然科学基金项目(41941016,U1839204) （41941016,U1839204）
国家重点研发计划课题(2021YFB2301401) （2021YFB2301401）
