Results 31 to 40 of about 519,341 (276)

Moment tensor and stress inversion solutions of acoustic emissions during compression and tensile fracturing in crystalline rocks

Journal of Rock Mechanics and Geotechnical Engineering, 2023
We investigate the accuracy and robustness of moment tensor (MT) and stress inversion solutions derived from acoustic emissions (AEs) during the laboratory fracturing of prismatic Barre granite specimens.
Zihua Niu, Bing Qiuyi Li, Omid Moradian
doaj   +1 more source

关于2021年5月滇西漾濞MS6.4地震序列特征及成因的初步研究

Dizhen xuebao, 2021
2021年5月21日21时48分在滇西苍山西麓漾濞地区发生MS6.4 （MW6.1）强震，相关地震活动表现为一个典型的前震−主震−余震序列。本研究分别就该地震序列的构造背景、M1.0以上地震的双差定位、主要地震的矩张量反演和破裂传播方向、应力场反演及断层滑动趋势以及潮汐作用等方面进行了初步分析。矩张量反演结果表明，矩心深度为6.0 km。根据断层破裂传播方向分析结果及精定位余震分布判定，主震震源断层产状为走向137°，倾角75°，滑动角−167°，破裂沿南东向单侧扩展，右旋走滑含正断层分量 ...
Xinglin Lei, Zhiwei Wang, Shengli Ma, Changrong He   +3 more
doaj   +1 more source

Study on tectonic stress field in Yingjiang area based on multi-focal mechanism solution sequence

地震科学进展, 2021
In this paper，a total of 162 focal mechanism solutions are collected from several focal mechanism solution sequences in Yingjiang area，and the tectonic stress field inversion is carried out from Sudian fault to Dayingjiang fault.
Bing Feng, Liangyu Zhu, Yao Ji, Yang Li, Wei Li   +4 more
doaj   +1 more source

Contemporary stress and strain field in the Mediterranean from stress inversion of focal mechanisms and GPS data [PDF]

Tectonophysics, 2020
Abstract Mapping the contemporary stress field of the Mediterranean provides fundamental insights on the complexity of plate tectonic forces throughout the region and at different depths. Despite increased data availability and methodological improvements, most recent comprehensive stress field characterization across the entire Mediterranean dates ...
Patricia Martínez-Garzón, Oliver Heidbach, Marco Bohnhoff   +2 more
openaire   +2 more sources

Subsurface structure and spatial segmentation of the Longmen Shan fault zone at the eastern margin of Tibetan Plateau: Evidence from focal mechanism solutions and stress field inversion

Tectonophysics, 2019
As the eastern margin of the Tibetan Plateau, the Longmen Shan fault zone (LMSFZ) is characterized by a complex structural style and strong seismicity, such as the 2008 Wenchuan Ms8.0 and 2013 Lushan Ms7.0 earthquakes.
Xian-Rui Li, T. Hergert, A. Henk, Dun Wang, Zuo-Xun Zeng   +4 more
semanticscholar   +1 more source

Development of a Generalizable Data-Driven Turbulence Model: Conditioned Field Inversion and Symbolic Regression [PDF]

AIAA Journal
This paper addresses the issue of predicting separated flows with Reynolds-averaged Navier–Stokes (RANS) turbulence models, which are essential for many engineering tasks.
Chenyu Wu, Shaoguang Zhang, Yu-Fei Zhang
semanticscholar   +1 more source

Quaternary tectonic and depositional evolution of eastern Srem (northwest Serbia) [PDF]

Geološki Anali Balkanskoga Poluostrva, 2014
The area of eastern Srem is situated in the southern periphery of the Pannonian basin. Its depositional evolution during the Neogene and the Quaternary has been controlled by tectonic processes. Miocene extensional subsidence was followed by the
Toljić Marinko, Nenadić Draženko, Stojadinović Uroš, Gaudenyi Tivadar, Bogićević Katarina   +4 more
doaj   +1 more source

In-situ stress measurement and inversion analysis of the deep shaft project area in Sanshan Island based on hydraulic fracturing method

Dizhi lixue xuebao, 2023
The proposed 2000-meter-deep auxiliary shaft at the Xiling mine, Sanshan Island, Shandong Province, is an ultra-deep shaft construction project. Revealing the characteristics of the in-situ stress field in the shaft construction area is one of the ...
ZHU Mingde, WANG Zhaoya, ZHANG Yuezheng, LI Wenguang, HOU Kuikui, JI Hongguang, YIN Yantian, FU Zhen, HAO Yingjie   +8 more
doaj   +1 more source

In Situ Stress Inversion in a Pumped-Storage Power Station Based on the PSO-SVR Algorithm

Applied Sciences
An accurate in situ stress field is a prerequisite for evaluating the stability of surrounding rock in underground caverns of a pumped-storage power station (PSPS) and ensuring the long-term safe operation of underground powerhouses.
Lu Liu, Jinhui Ouyang, Genqian Nian, Youping Zhu, Ning Liang   +4 more
doaj   +1 more source

Inversion Method of Initial In Situ Stress Field Based on BP Neural Network and Applying Loads to Unit Body

, 2020
The initial in situ stress field is the fundamental factor causing the deformation and failure of underground engineering and is an important basis for the feasibility analysis, design, and construction of underground engineering.
Xiaopeng Li, Xuejun Zhou, Zheng-Xuan Xu, T. Feng, Dong Wang, Jian-Hui Deng, Guang-Ze Zhang, Cun-Bao Li, G. Feng, Ru Zhang, Zhi-Long Zhang, Zetian Zhang   +11 more
semanticscholar   +1 more source