丽江—大理地区现代应力场特征分析  

Analysis of Present Stress Field Characteristic of Lijiang-Dali Area

作　　者：杨承伟 胡军 王成虎 杨长林 高桂云 YANG Chengwei;HU Jun;WANG Chenghu;YANG Changlin;GAO Guiyun(National Institute of Natural Hazards of Ministry of Emergency Management of China,Beijing 100085,China;Yunnan Dianzhong Water Diversion PhaseⅡEngineering Co.,Ltd.,Kunming 650000,Yunnan,China;Yunnan Dianzhong Water Diversion Engineering Co.,Ltd.,Kunming 650000,Yunnan,China)

机构地区：[1]应急管理部国家自然灾害防治研究院,北京100085 [2]云南省滇中引水二期工程有限公司,云南昆明650000 [3]云南省滇中引水工程有限公司,云南昆明650000

出　　处：《凿岩机械气动工具》2025年第1期174-177,共4页Rock Drilling Machinery & Pneumatic Tools

基　　金：云南省重大科技专项计划(202002AF080003)。

摘　　要：受印度洋板块俯冲和青藏高原隆升的影响,丽江—大理地区及周边分布大量的地震断裂带和重大基础建设工程,其构造应力场复杂多变,是研究构造应力场的重要场所。文章基于全新世活动断层擦痕应力反演和震源机制解结果,分析丽江—大理地区现今应力场的分布特征,旨在为滇西北地区强震危险性分析及重大基础设施建设设计提供支撑。Influenced by the subduction of the Indian Ocean plate and the uplift of the Qinghai-Tibet Plateau,a large number of seismic fault zones and major infrastructure projects are distributed in Lijiang-Dali area and its surrounding areas.The tectonic stress field is complex and changeable,which is an important place to study the tectonic stress field.Based on the results of stress inversion and focal mechanism solution of Holocene active fault scratches,this paper analyzes the distribution characteristics of the present stress field in Lijiang-Dali area,aiming to provide support for the risk analysis of strong earthquakes and the design of major infrastructure construction in Northwest Yunnan region.

关 键 词：应力场 断层擦痕 震源机制解 

分 类 号：TD166[矿业工程—矿山地质测量]