Frequency-Domain Full-Waveform Inversion Based on Tunnel Space Seismic Data

Yu, Mingyu; Cheng, Fei; Liu, Jiangping; Peng, Daicheng; Tian, Zhijian

doi:10.1016/j.eng.2021.06.018

Cited by 9 publications

(3 citation statements)

References 40 publications

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“…To develop and utilize marine resources, it is necessary to explore the marine environment and find out the occurrence and distribution of the resources primarily . Nevertheless, it is difficult to apply the direct geological observation method commonly used on land because of the obstruction of seawater when detecting the deep seabed . Hence, a great deal of research efforts had been dedicated to the development of submarine oil exploration. , Among various marine electric field sensors, capacitive composite electrodes (CCEs) − have attracted tremendous scientific interest thanks to their impressive properties of fast response, safe operation, low cost, and long service lifetime.…”

Section: Introductionmentioning

confidence: 99%

“…1 To develop and utilize marine resources, it is necessary to explore the marine environment and find out the occurrence and distribution of the resources primarily. 2 Nevertheless, it is difficult to apply the direct geological observation method 3 commonly used on land because of the obstruction of seawater when detecting the deep seabed. 4 Hence, a great deal of research efforts had been dedicated to the development of submarine oil exploration.…”

Section: Introductionmentioning

confidence: 99%

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Controllable 3D Flower-Like Ag-CF Electrodes as Flexible Marine Electric Field Sensors with High Stability

et al. 2023

Inorg. Chem.

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Construction of three-dimensional (3D) flower-like nanostructures with controlled morphologies has emerged as an attractive tool by scientists in the marine electric field sensor research field due to their peculiar structural features. Herein, novel 3D flower-like Ag-CF capacitive composite electrodes have been created by an eco-friendly water-bath strategy via AgNO3 as a sliver source and subsequently compounded with carbon fibers (CFs) pretreated by thermal oxidation. A series of electrode samples with various morphologies obtained by modulating different reaction times and temperatures bring about the dominant formation mechanism of these nanostructures and the influence behavior on the CF electrode in detail. Especially, the 3D flower-like Ag-CF electrode shows a large surface area acquired under the conditions of 80 °C and 15 min, which can provide more electroactive sites in electrochemical analysis and exhibit a maximum areal specific capacitance of 619.75 mF·cm–2 at a scanning speed of 10 mV·s–1. This is mainly due to the synergistic behavior of the unique 3D flower-like morphology and the large specific surface area of CFs. Furthermore, a cylinder-shaped Ag-CF sensor is designed, which delivers a superior potential difference of 33.08 μV, a potential difference drift of 18.62 μV/24 h for 30 days, and a self-noise of 0.92 nV/rt (Hz)@1 Hz. In this work, the intriguing synthesis strategy can be a promising facile approach to manufacture the controllable 3D flower-like Ag-CF electrode for electric field sensor applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Controllable 3D Flower-Like Ag-CF Electrodes as Flexible Marine Electric Field Sensors with High Stability

et al. 2023

Inorg. Chem.

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“…The potential of frequency domain approaches in the context of mechanized tunneling have only been investigated in combination with the usage of the acoustic wave equation (Riedel et al, 2021b;Wang et al, 2021;Yu et al, 2021), which neglects the dominant influence of shear as well as surface waves. The proposed approach extends the work which has been presented by Musayev (2017) and Riedel et al (2019Riedel et al ( , 2021a.…”

Section: Introductionmentioning

confidence: 99%

Elastic waveform inversion in the frequency domain for an application in mechanized tunneling

Riedel¹,

Musayev²,

Baitsch³

et al. 2022

Preprint

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The excavation process in mechanized tunneling can be improved by reconnaissance of the geology ahead. A nondestructive exploration can be achieved in means of seismic imaging. A full waveform inversion approach, which works in the frequency domain, is investigated for the application in tunneling. The approach tries to minimize the difference of seismic records from field observations and from a discretized ground model by changing the ground properties. The final ground model might be a representation of the geology. The used elastic wave modeling approach is described as well as the application of convolutional perfectly matched layers. The proposed inversion scheme uses the discrete adjoint gradient method, a multi-scale approach as well as the L-BFGS method. Numerical parameters are identified as well as a validation of the forward wave modeling approach is performed in advance to the inversion of every example. Two-dimensional blind tests with two different ground scenarios and with two different source and receiver station configurations are performed and analyzed, where only the seismic records, the source functions and the ambient ground properties are provided. Finally, an inversion for a three-dimensional tunnel model is performed and analyzed for three different source and receiver station configurations.

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Multi-parameter Imaging by Finite Difference Frequency Domain Full Waveform Inversion of GPR Data: A Guide for Sedimentary Architecture Modeling

Layek,

Sengupta

2024

Pure Appl. Geophys.

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Frequency-Domain Full-Waveform Inversion Based on Tunnel Space Seismic Data

Cited by 9 publications

References 40 publications

Controllable 3D Flower-Like Ag-CF Electrodes as Flexible Marine Electric Field Sensors with High Stability

Controllable 3D Flower-Like Ag-CF Electrodes as Flexible Marine Electric Field Sensors with High Stability

Elastic waveform inversion in the frequency domain for an application in mechanized tunneling

Multi-parameter Imaging by Finite Difference Frequency Domain Full Waveform Inversion of GPR Data: A Guide for Sedimentary Architecture Modeling

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