JpGU Meeting 2018
Session outline| Human Geosciences(H) | ||
|---|---|---|
| Session Sub-category | Technology & Techniques | |
| Session ID | H-TT19 | |
| Title | New Developments in Shallow Geophysics | |
| Short Title | Shallow Geophysics | |
| Main Convener | Name | Kyosuke Onishi |
| Affiliation | Public Works Research Institute | |
| Co-Convener 1 | Name | Kunio Aoike |
| Affiliation | Oyo corporation | |
| Co-Convener 2 | Name | Keisuke Inoue |
| Affiliation | National Agriculture and Food Research Organization | |
| Co-Convener 3 | Name | Tishiyuki Yokota |
| Affiliation | National Institute of Advanced Industrial Science and Technology | |
| Session Language | JJ | |
| Scope | The session of shallow geophysics calls many research contributions on geophysical exploration techniques for the near surface. Our target depth is strictly restricted in the depth zone from 5 cm to 30 m (or from 2 in to 100 ft) below the surface of the ground. It may be the closest unknown territory for human society and advanced societies cannot have controlled yet to avoid disasters caused by dynamics in the shallow near surface. Peoples require techniques to manage levee, landslide and earth constructions also knowledge to control groundwater, liquefaction and soil pollution. The near surface has many geotechnical, environmental and hydrogeologic problems. Major survey techniques are surface wave method, electric exploration, ground-penetrating radar and land streamer, but any methods will be discussed if your target is located in the specified depths. This session welcomes to discuss laboratory tests and rock physics for unconsolidated porous media in the vadose zone. Also, we will welcome not only cutting-edge technologies but also classic theory, if the knowledge is useful for human living. | |
| Presentation Format | Oral and Poster presentation | |
| Co-Sponsoring Societies (Society Members) | The Society of Exploration Geophysicists of Japan | |
| Invited Authors |
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| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 24 AM1 | ||||
| 09:00 - 09:15 | HTT19-01 | Development of a magnetic resonance surface scanner for near surface geophysics | Yoshito Nakashima | Abstract |
| 09:15 - 09:30 | HTT19-02 | Evaluation of fiber optic DAS as a dense seismic array for continuous monitoring of civil engineering structures | Junzo Kasahara | Abstract |
| 09:30 - 09:45 | HTT19-03 | Field experiment of the CCR survey using cylinder electrodes | Chisato Konishi | Abstract |
| 09:45 - 10:00 | HTT19-04 | 3D ERT time-lapse monitoring during levee overflow simulation using multi-current transmission technique | Yamashita Yoshihiro | Abstract |
| 10:00 - 10:15 | HTT19-05 | Estimation of Wetting Front Depth using Time-Lapse Multi-Offset Gathers Obtained from Array Antenna GPR | Hirotaka Saito | Abstract |
| 10:15 - 10:30 | HTT19-06 | Structural imaging of an ancient burial mound by 3D migration using highly dense GPR data | Kunio Aoike | Abstract |
| Oral Presentation May 24 PM1 | ||||
| 13:45 - 14:00 | HTT19-07 | Applications of Sparse Modeling to Geophysical Surveys in Engineering Geology | Shigeru Miki | Abstract |
| 14:00 - 14:15 | HTT19-08 | Effect of deep learning network design and image pre-processing of ground penetrating radar (GPR) data for underground cavities | Shinichiro Iso | Abstract |
| 14:15 - 14:30 | HTT19-09 | Object detection of ground penetrating radar images using deep convolutional neural network and autoencoder | Kazuya Ishitsuka | Abstract |
| 14:30 - 14:45 | HTT19-10 | Surface wave dispersion of leakage modes for near-surface surveys | Osamu NISHIZAWA | Abstract |
| 14:45 - 15:00 | HTT19-11 | Estimation of thermal resistance of soil around underground power transmission line using geophysical surveys | Koichi Suzuki | Abstract |
| 15:00 - 15:15 | HTT19-12 | Model-based quantitative prediction of seismic velocity reduction in the excavation disturbed zone (EDZ) | Toru Takahashi | Abstract |
| Oral Presentation May 24 PM2 | ||||
| 15:30 - 15:45 | HTT19-13 | Near surface geophysical survey at Mashiki Town stricken by the 2016 Kumamoto Earthquakes | Tomio INAZAKI | Abstract |
| 15:45 - 16:00 | HTT19-14 | Ground Penetrating Radar Survey at Mt. Aso and Frequency Characteristics of Complex Relative Permittivity of Volcanic Ash | Jun Sonoda | Abstract |
| 16:00 - 16:15 | HTT19-15 | Estimation of shear-wave velocity structure by means of hybrid surface wave survey | Hiroshi Kisanuki | Abstract |
| 16:15 - 16:30 | HTT19-16 | Two-dimensional microtremor survey by chain array | Tsuyoshi Haraguchi | Abstract |
| 16:30 - 16:45 | HTT19-17 | Elucidation of geological structure in the Uchinomaki hot spring area using microtremor array measurment: Insight into horizontal deformation during 2016 Kumamoto earthquake | Kosuke Takahashi | Abstract |
| 16:45 - 17:00 | HTT19-18 | A feasibility study for detecting a cavity as a groundwater flow path using DC resistivity and TDIP surveys in Shikawada cold springs area, Miyako Island, Japan. | Shogo Komori | Abstract |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 24 Core Time | |||
| HTT19-P01 | Seismic waveform changes associated with precipitation revealed by a geophone array and DAS | Junzo Kasahara | Abstract |
| HTT19-P02 | Applicability of the fiber optic DAS(Distributed Acoustic Sensor) to the calculation of surface wave dispersion curves. | Yasutomo Yamauchi | Abstract |
| HTT19-P03 | Surface seismic survey using horizontal ground vibrations for monitoring shallow ground conditions | Kyosuke Onishi | Abstract |
| HTT19-P04 | A technique to estimate phase velocities using a two-sensor array | Hidetaka Shiraishi | Abstract |
| HTT19-P05 | Evaluation of site amplification factors using seismic observation and miniature array analysis of microtremors in Zushi City | Yoshiya Oda | Abstract |
| HTT19-P06 | Very shallow S-wave seismic reflection survey across the surface rupture of 2014 Naganoken-hokubu earthquake, central Japan | Shinsuke Okada | Abstract |
| HTT19-P07 | Monitoring of Shear-wave velocity in the vadose zone. | Hiroshi Kisanuki | Abstract |
| HTT19-P08 | Geophysical Investigation under Agricultural Facility Damaged by the 2016 Kumamoto Earthquak | Keisuke Inoue | Abstract |
| HTT19-P09 | Case study of clarifying on the shallow rock mass condition and the resistivity distribution inside the tunnel under construction | Kenji OKAZAKI | Abstract |
| HTT19-P10 | GPR survey in mud volcanoes at Goshougake hot spring in Akita prefecture | Inoue Yusuke | Abstract |
| HTT19-P11 | Surveying the shallow structure of paved roads using multi-channel ground-penetrating radar | Kyosuke Onishi | Abstract |