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ISSN: 2772-4670
CN: 10-1743/P

Experimental study on the dynamic modulus of compacted loess under bidirectional dynamic load

The dynamic characteristics of compacted loess are of great significance to the seismic construction of the Loess Plateau area in Northwest China, where earthquakes frequently occur. To study the change...

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The advance in obtaining fault slip rate of strike slip fault-A review

Slip rate along the major active fault is an important parameter in the quantitative study of active tectonics. It is the average rate of fault slip during a certain period of time, reflecting the rate...

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Seismic anisotropy beneath the Chinese Mainland: Constraints from shear wave splitting analyses

We use earthquakes recorded by the China National Seismic Network from 2015 to 2019 and measure shear wave splitting parameters of SKS to study the anisotropic characteristics beneath the mainland of...

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Fault detection by reflected surface waves based on ambient noise interferometry

Detecting subsurface fault structure is important for evaluating potential earthquake risks associated with active faults. In this study, we propose a new method to detect faults using reflected surface...

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Experimental study on the influence of seismic subsidence of loess under bidirectional loading modes

Water content, dry density, void ratio, depth of soil layer, and seismic loading may all exert influence on the seismic subsidence of loess. Many scholars have carried out seismic subsidence tests of...

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Focal mechanism and seismogenic structure of the Shiqu MS4.4 earthquake

The focal mechanism solution of the Shiqu MS 4.4 earthquake occurred on May 16th, 2017 in Sichuan Province is studied by the gCAP method using the waveform data from the regional seismic networks in...

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A classification method of building structures based on multi-feature fusion of UAV remote sensing images

In order to improve the accuracy of building structure identification using remote sensing images, a building structure classification method based on multi-feature fusion of UAV remote sensing image...

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General seismic wave and phase detection software driven by deep learning

We developed an automatic seismic wave and phase detection software based on PhaseNet, an efficient and highly generalized deep learning neural network for P- and S-wave phase picking. The software...

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Analysis of GAMIT/GLOBK in high-precision GNSS data processing for crustal deformation

The advances in satellite navigation and positioning technology and the worldwide establishment of continuous-tracking stations have greatly promoted the development and application of the high-precision...

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A multi-channel approach for automatic microseismic event association using RANSAC-based Arrival Time Event Clustering (RATEC)

In the presence of background noise, arrival times picked from a surface microseismic data set usually include a number of false picks that can lead to uncertainty in location estimation. To eliminate...

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MatDEM-fast matrix computing of the discrete element method

Discrete element method can effectively simulate the discontinuity, inhomogeneity and large deformation and failure of rock and soil. Based on the innovative matrix computing of the discrete element...

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Application of HPC and big data in post-pandemic times

We lay out the ramifications of the 2020 pandemic for all people in geosciences, especially the young, and argue for significant changes on training and career development. We focus primarily on its...

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A test method for analyzing the deformation of landslide model

In order to study the overall deformation of geotechnical model conveniently, the worksite of landslide bridge foundation reinforced by the front and rear row anti-slide piles in Chenglan railway was...

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The safety distance of a tunnel under-traversing a slope body with a landslide-prone zone

At present, substantial scientific research achievements have been made in the research on landslide occurrence, movement mechanism, mitigation measures, and structural stability during tunnel excavation....

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Seismic response reduction analysis of large chassis base-isolated structure under long-period ground motions

Long-period structures (e.g. Isolated structures) tend to produce pseudo-resonance with low frequency components of long-period ground motions, resulting in the increase in damage. Stiffness mutation...

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Coseismic deformation of the 2020 Yutian MW 6.4 earthquake from Sentinel-1A and the slip inversion

A remarkable earthquake struck Yutian, China on June 26th, 2020. Here, we use Sentinel-1 images to investigate the deformation induced by this event. We invert the InSAR observations using a two-step...

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Experimental of the influence of mineral composition and normal stress on the frictional slip of shale

Natural fractures are widely distributed in shale reservoirs. During the hydraulic fracturing process, frictional slip occurring on natural fractures can increase the reservoir permeability and is of...

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Comparative study on the deviation characteristics of post-earthquake intensity evaluation based on two intensity attenuation relationship models

We collect the isoseismal data of 488 earthquakes in western China and 182 earthquakes in eastern China after 1900. The least square method is used to establish two models of the seismic intensity attenuation...

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Simulation of the water level influence on the difference within the water-tube tiltmeter in Shuangyang Lake

This article analyzes the relationship between the water level and the water-tube tilting in Shuangyang lake, based on the differential deformation features reflected by the NS and EW components of...

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The stress change of the major activity faults in the Weihe Graben after the Wenchuan earthquake

The seismicity of small earthquakes in the Weihe Graben has changed after the Wenchuan earthquake. In detail, the seismicity around the Qishan-Mazhao fault in the western Weihe Graben decreased, while...

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TransQuake: A transformer-based deep learning approach for seismic P-wave detection

Recent years, we have witnessed the increasing research interest in developing machine learning, especially deep learning which provides approaches for enhancing the performance of microearthquake detection....

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Viscoelastic relaxation of the upper mantle and afterslip following the 2014 MW8.1 Iquique earthquake

An improved understanding of postseismic crustal deformation following large subduction earthquakes may help to better understand the rheological properties of upper mantle and the slip behavior of...

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