The Numerical Simulation of Stress Field in Northwest Yunnan in Recent Years
Abstract In this paper, a three-dimensional finite element model is established for northwest Yunnan province. The tectonic stress field of the area is simulated by using 2009~2016 GPS velocity field data as the displacement boundary condition of numerical simulation. The results show that: Chuxiong to the northwest of Yunnan province shows overall tensional stress; in the area circled by Eryuan-Heqing, Honghe, Chenghai faults, the internal tensile stress is significantly lower than that of the outside; the low value area, especially around the boundary fault, is often in areas of frequent crustal faulting; the north of Qujiang fault and the south of Lüzhijiang fault present a tensional stress concentration zone, which will be focused on in the future.
Key words :
northwest of Yunnan
GPS velocity fields
stress field
numerical simulation
Cite this article:
WU Yongcai,LI Ang,TANG Hongtao. The Numerical Simulation of Stress Field in Northwest Yunnan in Recent Years[J]. jgg, 2018, 38(12): 1238-1240.
WU Yongcai,LI Ang,TANG Hongtao. The Numerical Simulation of Stress Field in Northwest Yunnan in Recent Years[J]. jgg, 2018, 38(12): 1238-1240.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2018/V38/I12/1238
[1]
ZHUANG Wenquan,LI Jun,HAO Ming,CUI Duxin. Study on the Characteristics of Current Crustal Activity in the Southern Sichuan-Yunnan Block Using Dense GNSS Data and Focal Mechanism Solution [J]. jgg, 2021, 41(7): 732-738.
[2]
FENG Bing,LI Yang,WANG Wentao,YANG Yingzhao,WEN Yulong,LIU Shu. Study on the Relationship between the Distribution of Tectonic Stress Field and the Shape of Benioff Zone from Japan to Northeast China [J]. jgg, 2021, 41(4): 425-431.
[3]
DAI Hongbao,TANG Hongtao. Analysis of Tectonic Stress Field Characteristics of Longxian-Baoji Fault Zone Based on GPS Data [J]. jgg, 2021, 41(4): 413-418.
[4]
CHEN Jia,ZHANG Tianji,LI Lei,JIN Mingpei. Seismicity in Northwest Yunnan Studied Using Dense Station Array [J]. jgg, 2021, 41(12): 1258-1263.
[5]
GAO Jian,YANG Yihai,LI Cuiping,FU Zhuo. Analysis on Shear-Wave Splitting of 2017 Wulong M5.0 Earthquake Sequence [J]. jgg, 2021, 41(11): 1163-1168.
[6]
ZHOU Lin,LI Jun, ZHANG Pei,JIN Yuan. Study on Fault Structure and Stress Field Characteristics of Maqin-Maqu Section of East Kunlun Fault [J]. jgg, 2021, 41(1): 62-66.
[7]
. [J]. jgg, 2020, 40(S2): 100-106.
[8]
. [J]. jgg, 2020, 40(S1): 47-50.
[9]
LI Juan,HAN Xiaoming,ZHANG Fan. Research on the Tectonic Stress Field before and after the April 15,2015 Alxa Left Banner MS 5.8 Earthquake [J]. jgg, 2020, 40(9): 923-927.
[10]
ZHANG Fan,WANG Xiaoshan,NA Renhua,HAN Xiaoming,LI Juan,ZHANG Ke. Inversion of Tectonic Stress Field in Eastern Inner Mongolia by Focal Mechanism [J]. jgg, 2020, 40(8): 771-777.
[11]
CUI Ronghua, FANG Jian, CHEN Ming. Numerical Simulation of Large-Scale Core-Mantle Boundary Topography Relief Caused by Instantaneous Mantle Flow
[J]. jgg, 2020, 40(3): 281-286.
[12]
WANG Qixin,XU Xiwei,JIANG Zaisen. Strain Characteristics of North-South Seismic Zone and the Analysis of Earthquake Risk [J]. jgg, 2020, 40(1): 23-29.
[13]
. [J]. jgg, 2019, 39(增1): 11-14.
[14]
. [J]. jgg, 2019, 39(增1): 26-28.
[15]
. [J]. jgg, 2019, 39(增1): 128-132.