Geological survey of the Seino area in Nobi Plain by drone airborne electromagnetic survey method

Youichi Yuuki; Akira Shinsei; Satoshi Tomimori; Zenshiro Saito; Akira Jomori; Atsuyoshi Jomori

doi:10.3124/segj.74.142

Geological survey of the Seino area in Nobi Plain by drone airborne electromagnetic survey method

BUTSURI-TANSA(Geophysical Exploration) ◽

10.3124/segj.74.142 ◽

2021 ◽

Vol 74 (0) ◽

pp. 142-150

Author(s):

Youichi Yuuki ◽

Akira Shinsei ◽

Satoshi Tomimori ◽

Zenshiro Saito ◽

Akira Jomori ◽

...

Keyword(s):

Geological Survey ◽

Survey Method ◽

Airborne Electromagnetic ◽

Airborne Electromagnetic Survey

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Geological structure survey by drone airborne electromagnetic survey method

10.1190/segam2021-3581850.1 ◽

2021 ◽

Author(s):

Youichi Yuuki ◽

Akira Shinsei ◽

Zenshiro Saito ◽

Satoshi Tomimori ◽

Akiyo Yamaguchi ◽

...

Keyword(s):

Geological Structure ◽

Survey Method ◽

Airborne Electromagnetic ◽

Airborne Electromagnetic Survey

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Suppression of motion noise based on a linear‐homomorphic filtering algorithm in airborne electromagnetic survey

Geophysical Prospecting ◽

10.1111/1365-2478.13078 ◽

2021 ◽

Author(s):

Kaiguang Zhu ◽

Cong Peng ◽

Chunyang Jing ◽

Tianjiao Fan ◽

Yang Yang

Keyword(s):

Filtering Algorithm ◽

Homomorphic Filtering ◽

Airborne Electromagnetic ◽

Airborne Electromagnetic Survey

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Parallel solution of 3D forward and inverse problems of airborne electromagnetic survey

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/1019/1/012020 ◽

2021 ◽

Vol 1019 ◽

pp. 012020

Author(s):

M G Persova ◽

Y G Soloveichik ◽

D V Vagin ◽

D S Kiselev ◽

O S Trubacheva ◽

...

Keyword(s):

Inverse Problems ◽

Parallel Solution ◽

Airborne Electromagnetic ◽

Airborne Electromagnetic Survey

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Precise grading of surrounding rock based on the numerical calculation of the jointed rock mass

Proceedings of the Institution of Civil Engineers - Geotechnical Engineering ◽

10.1680/jgeen.21.00155 ◽

2022 ◽

pp. 1-32

Author(s):

Dan Huang ◽

Xiao-Qing Li ◽

Wen-Chao Song

Keyword(s):

Rock Mass ◽

Numerical Calculation ◽

Calculation Method ◽

Jointed Rock ◽

Jointed Rock Mass ◽

Surrounding Rock ◽

Geological Survey ◽

Survey Method ◽

Synthetic Rock ◽

Numerical Calculation Method

In this study, grading of surrounding rock was based on rock mass basic quality (BQ) values according to the specifications in China. Numerical approach was to construct synthetic rock mass (SRM) model to represent the jointed rock mass, and obtain the strength of the rock mass. It represented intact rock by the bonded particle model (BPM), and represent joint behaviour by the smooth joint model (SJM) to construct the discrete fracture network (DFN). In the Hongtuzhang Tunnel, the micro properties of granite cores with different weathered degrees were determined by the validation process, and the calculation representative elementary volume (REV) of surrounding rock was 15 m×15 m. Five slightly weathered, three slightly to moderately weathered, and two moderately weathered granite surrounding rock mass models were established based on the probability distribution of joint sets in each borehole, the conversion BQ value was acquired according by the calculated strength of rock mass model. It was discussed the differences of surrounding rock grades between the geological survey method and the numerical calculation method, and then found that the geological survey report is higher than the numerical calculation method predicted. And the numerical calculation is consistent with the actual excavation of rock mass at borehole A1388.

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