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Affiliation Department |
Department of Architecture, Civil Engineering and Industrial Management Engineering
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Title |
Assistant Professor |
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Contact information |
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External Link |
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MORIKAWA Yukihiro
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From Graduate School
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Nagoya Institute of Technology Graduate School, Division of Engineering Department of Scientific and Engineering Simulation Doctor's Course Completed
2010.04 - 2013.03
Country：Japan
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Nagoya Institute of Technology Graduate School, Division of Engineering Department of Architecture, Civil Engineering and Industrial Management Engineering Master's Course Completed
2003.04 - 2005.03
Country：Japan
Qualification Acquired
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Civil Engineering Construction Management Engineer (first class)
Research Career
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リサイクル材料である破砕瓦の有効性に関する研究
(not selected)
Project Year： 2013.04
愛知県は江戸時代から瓦の産地であり，全国シェアの70％を占めている。また，瓦の生産過程で発生する規格外品瓦を砕いた破砕瓦がリサイクル材料として注目されている。破砕瓦は排水性能や摩擦性能に優れた土質材料であるため，振動台実験装置や原位置での実物大実験などを用いて破砕瓦の有用性を検討する。
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混合土の力学挙動に関する研究
(not selected)
Project Year： 2013.04
主に粘性土等を対象に石灰やスラグを用いて地盤改良を行い，力学挙動の変化等を研究する。スラグ等は若干ではあるが水和反応による硬化作用も期待できるため，透水性能や強度などの力学挙動の変化を長期的に把握する。
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ジオシンセティックスを用いた地盤補強
(not selected)
Project Year： 2013.04
軟弱地盤上に構造物等を構築する場合，地盤改良等の支持力補強が必要な場合がある。しかし，地盤改良等はコストの増大や施工条件の制約を受けやすい。そこで本研究では簡易でありながら制約も受けにくい繊維補強材（ジオシンセティックス）を敷設する支持力補強方法に着目した。この工法は今日まで盛土から一般住宅まで幅広く用いられており，補強材端部構造や敷設範囲が沈下挙動に及ぼす影響等を検討する。
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動的有限要素法を用いた液状化解析
(not selected)
Project Year： 2013.04
地震による液状化被害を精度よく予測するためには地震動の継続時間や複数回の余震を考慮する必要がある。通常行われる本震のみを対象とした単独地震動による解析・評価のみではなく，余震も含めた複数回の地震動による弾塑性動的有限要素解析を行い，重力場での振動台実験とともに液状化による被害予測，及びその対策を検討する。
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既設杭基礎構造物の耐震補強
(not selected)
Project Year： 2013.04
既設杭基礎構造物を対象とし，杭基礎周辺部における部分的な地盤改良による耐震補強方法に関する研究である。地盤改良による補強は施工条件や経済性において有利であると考えられる。重力場における振動台実験や動的有限要素解析により補強効果を検証する。
Papers
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FUNDAMENTAL STUDY FOR DEVELOPMENT OF SEISMIC ISOLATING FOUNDATION IMITATED INTERLOCKING STRUCTURE OF ITACOLUMITE Reviewed
in printing 2023.04
Language：Japanese Publishing type：Research paper (scientific journal)
In this study, the microstructure that gives itacolumite its flexibility and shock absorption properties is proposed as a loosely connected block assembly in three dimensions with gaps in between. The block as-sembly was manufactured by taking advantage of the additive manufacturing of 3D printing, in which each block and gap was fabricated simultaneously in a design that the blocks can move freely in any di-rection without disengaging. The block assembly showed similar flexibility and shock absorption proper-ties as itacolumite. In a vibration test using the blocks as a direct foundation, the vibration isolation ef-fect was confirmed to reduce acceleration to one-third that of integral blocks. A construction method was also devised to produce this block assembly by casting concrete.
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STUDY ON APPLICABILITY OF CRUSHED ROOF TILE WITH HIGH FRICTION AND LIGHTWEIGHT AS BACKFILL MATERIAL FOR CIVIL ENGINEERING STRUCTURE Reviewed
79 ( 5 ) 22-00208-1 - 22-00208-17 2023.03
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)
Many clay roof tiles have been used until now, and a large number of tiles that have reached the end of their useful life will be discarded in the near future. In addition, a certain amount of defective roof tiles are produced when clay tiles are manufactured. However, these unnecessary clay roof tiles are not recy-cled much except as recycled material for clay roof tile. Therefore, in this study, the applicability of crushed roof tile, which is recycled material made from defective roof tile, as a backfill material for civil engineering structure was studied through laboratory model tests and full-scale field tests. As a result of the study, it was clarified that crushed roof tile can be expected to reduce the horizontal earth pressure acting on civil engineering structure because that has lightweight and high frictional properties. In addi-tion, it was clarified that crushed roof tile can be expected to have high bearing capacity even without re-inforcement, reinforcing effect due to geosynthetics, and the range of influence of the vertical load on the crushed roof tile was almost the same as that on the pit sand. Therefore, crushed roof tile can be fully applied as a backfilling material for civil engineering structures.
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STUDY ON CONVERTER SLAG AS GROUND IMPROVEMENT MATERIAL Reviewed
2021.03
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)
In this study, converter slag, which has problems with expandability and pretreatment to prevent it, was studied. The advantages of converter slag as a ground improvement material were studied, focusing on its frictional properties, grain size characteristics, and hydraulic properties. The present study showed that mixing fine grained soil with gravel and sand-rich converter slag improved the particle size distribu-tion of the soil mixture. As a result, the compaction characteristics of the mixtures were greatly improved and the lack of compaction was less likely to occur regardless of the compaction method. It was also found that the ground strength of the soil mixture increased with the mixing rate of the converter slag, and that the fine-grained soil acted as a cushion to reduce the expansion of the converter slag. Further-more, the effect of mixing slag into the soil was found to increase the improvement of the cement by improving the particle size distribution, alkalization, and decreasing the unit water volume for mixing of tar-get soil.
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Liquefaction Damage Suppression Effects of Existing Small Scale Structure Receiving Eccentric Load Using Floating Grid-type Improvement Reviewed
2020.12
Language：Japanese Publishing type：Research paper (scientific journal)
In recent years, liquefaction damage of detached houses due to large-scale earthquake has become se-rious all over the world. If the existing small-scale structures such as houses are tilted due to liquefaction, they suffer more serious damage than they are subsided. In this paper, the effect of countermeasure against tilting damage due to liquefaction using floating grid-type improvement was investigated by 2D model tests under 1g condition using eccentric model structure, and non-linear FEM analyses. From the results, it was found that the floating grid-type improvement can significantly suppress the settlement damage of structure by suppressing the lateral flow of the liquefied ground even if the dead load of struc-ture is eccentric. It was also found that lateral flow of the liquefied soil hardly occurs when the structure inclines due to liquefaction, and the effect of countermeasure against tilting damage due to liquefaction using floating grid-type improvement was not as high as the effect of suppressing subsidence damage. Therefore, it was found that desirable to use a floating grid-type improvement and drainage method to prevent tilting damage of structure.
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Numerical Analysis on Mechanism of Dewatering as a mitigation method Against Liquefaction Reviewed International journal
Y. Morikawa, H. Cho
International Journal of GEOMATE 18 ( 66 ) 68 - 75 2020.02
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
In recent years, liquefaction due to major earthquake caused serious damages to many infrastructures and houses around the world. In order to protect people’s daily life and infrastructure from the disaster, development of effective and economical countermeasure against liquefaction that can be applied to existing houses is becoming increasingly important. Although many liquefaction countermeasures have been developed by many researchers, most of them require large construction machines and are costly, which limits their application to existing structures. For this reason, a liquefaction countermeasure, called as groundwater-level decreasing method, has been proposed in Japan. This method has already been put into practice and the construction of the countermeasure has finished several years ago. The purpose of this method is to change a liquefied layer to a non-liquefied layer by lowering the groundwater level. Yet the performance of this method has not been fully evaluated quantitatively. Therefore, in this paper, numerical analysis using FEM method was carried out to evaluate the liquefaction damage before and after the lowering of groundwater level. The calculation is conducted with 2D soil-water coupling finite element-finite difference (FE-FD) analysis based on a rotating-hardening elastoplastic constitutive model. From the analyses, it is found that the effective stress of the ground below under-groundwater level increases significantly because of the lowering of groundwater-level, resulting in an increase in resistance to liquefaction and mitigating the settlement damage of ground.
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New Chemical Grouting Method Using Ultrasonic Vibration Reviewed
Journal of the Society of Materials Science, Japan 69 ( 1 ) 63 - 68 2020.01
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)
Injecting the improvement material into the ground by the chemical solution injection method, the permeability of the ground decreases due to the occurrence of clogging in void of ground. The permeability of the ground greatly affects the penetration range of the chemical solution and the quality of the improved body. In other words, it is very important to prevent the decrease of the permeability of the ground in the chemical injection method. Therefore, in this research, a new chemical grouting method that prevents the decrease of the permeability of the ground is developed by applying ultrasonic vibration when grouting the chemical solution. Consequently, in our previous laboratory and the field verification, it was found that the decrease of the permeability of the ground can be prevented, also the diameter and the quality of the improved body were improved by applying ultrasonic vibration when grouting the chemical solution.
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Reduction Effects of Liquefaction Damage Using Small Scale Floating Grid-Type Improvement for Existing Small Scale Structure Reviewed
75 ( 2 ) 329 - 339 2019.12
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)
Earthquake resistance of important structure have benn promoted based on the lessons learned from the big Earthquake in Japan. However, liquefaction still causes serious damages to many detached hous-es in the world. Also, most soil improvement methods apply to original ground without structure, and countermeasure against liquefaction for existing small structure has not been sufficiently investigated. Therefore, we investigated reduction effects of liquefaction damage using small grid-type improvement as countermeasure against liquefaction for existing small structure. To this end, 2D model tests under 1g condition and non-linear FEM analyses have been carried out. From the model tests results, it was found that if the interval of improved wall is within 1.2 times of the base width, some degree of counter meas-ure effect agaisnrt subsidence due to liquefaction can be obtained with a small grid-type improvement where the improvement depth is about twice the base width. The numerical simulation has shown a simi-lar result as found in the observations.
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Liquefaction-Induced Buckling Failure of Group-Pile Foundation and Countermeasure by Partial Ground Improvement Reviewed International coauthorship International journal
K. Hamayoon, Y. Morikawa, Guanlin Ye and Feng Zhang
International Journal of Geomechanics 19 ( 5 ) 04019020-1 - 04019020-16 2019.02
Language：English Publishing type：Research paper (scientific journal) Publisher：American Society of Civil Engineers
Pile foundations may lose their lateral resistance in earthquake-induced liquefaction and may fail not only by bending and shear forces but also buckling. Although research has been done on the buckling of pile foundations, it is still necessary to investigate further the buckling of pile foundations during an earthquake and a corresponding efficient countermeasure. Some existing pile foundations may not meet the requirement of present seismic design standards and are vulnerable to buckling failure. In the present study, numerical analyses and model tests were conducted. The validity of the proposed numerical method was first verified through a 1-g shaking table test. Then, the buckling risk of a group-pile foundation and its strengthening with partial ground improvement (PGI) were carefully estimated. Meanwhile, the effectiveness of the proposed countermeasure with PGI against the buckling of the group-pile foundation was confirmed by a static model test. The purpose of the study was to investigate the effectiveness of ground improvement for the retrofitting of vulnerable pile foundations against buckling due to seismic loading.
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Effective method to increase ground stiffness and bearing capacity in 2D and 3D flat foundations Reviewed International coauthorship International journal
Y. Morikawa, H. M. Shahin and T. Nakai
Proc. of the 7th China-Japan Geotechnical Symposium 215 - 219 2018.03
Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings)
To increase bearing capacity of ground, geosynthetic is laid below the foundation. In the present study, for increasing bearing capacity, reinforcing effect in the case where each edge of the reinforcement is fixed with the soil has been investigated. For this purpose, 2D model tests under 1g condition model tests was carried out. According to the 2D model test, it is revealed that the appropriate depth of the reinforcement is not too deep. The 3D centrifuge model test was also conducted in order to verify the reinforcing effect which was observed by 2D model tests in actual stress condition. According to the 3D centrifuge model test, almost same tendency is seen between 2D model test and 3D centrifuge model test. From the results of the 3D centrifuge model test and 2D model tests, it is revealed that the fixity condition of reinforcement plays an important role in increase of the bearing capacity. The bearing capacity increases significantly when reinforcing the ground in the same length or a little larger than the width of the foundation with an appropriate depth.
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Numerical Analysis on Mechanism of Liquefaction not only in Main Earthquake but also in After Shock Reviewed International journal
Y. Morikawa, H. Sakaguchi, A. Taira and H. Cho
International Journal of GEOMATE 14 ( 45 ) 58 - 65 2018.03
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
During the 2011 Great East Japan Earthquake, liquefaction occurred in the reclaimed ground in the wide area of east Japan. In some areas, liquefaction happened in the aftershock was even more serious than what happened in the main shock. For this reason, the liquefaction that happened a long time after the earthquake caused not only by the main shock but also the multiple aftershocks within a short period of time, is intensively investigated in recent years. In this paper, particular attention is paid to the characteristic features of the liquefaction and its consequent consolidation-induced settlement. Based on the observed data, a series of dynamic-static analyses, considering not only the earthquake loading but also static loading during the consolidation after the earthquake shocks, are conducted in a sequential way just the same as the scenario of the earthquake. The calculation is conducted with 3D soil-water coupling finite element-finite difference (FE-FD) analyses based on a rotating-hardening elastoplastic constitutive model. From the analyses, it is recognized that small sequential earthquakes, which cannot cause liquefaction of a ground in an independent earthquake vibration, cannot be neglected when the ground has already experienced the liquefaction after a major shock. In addition, the aftershocks have great influence on the long-term settlement of the soil layers with low permeability. It is confirmed that the numerical method used in this study can describe the ground behavior correctly under repeated earthquake shocks.
Misc
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コンニャク石の微細構造に学ぶ免振基礎の開発
吉田亮，橋本忍，森河由紀弘，岩屋遼
15 ( 12 ) 39 - 44 2023.12
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal)
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コンニャク石に倣った新規コンクリートブロック免振構造体の開発
岩屋遼，吉田亮，森河由紀弘，橋本忍，太田敏孝
75 ( 8 ) 289 - 296 2023.08
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal)
Presentations
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排水性の高い浮き形格子状地盤改良による繰返し地震動に対する液状化対策効果
岡﨑昂奈，森河由紀弘，前田健一，佐藤智範
第35回中部地盤工学シンポジウム 2023.08 公益社団法人 地盤工学会 中部支部
Event date： 2023.08
Language：Japanese Presentation type：Oral presentation (general)
Venue：名古屋
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繰返し地震動に対する排水性浮き型格子状地盤改良の液状化対策効果
岡﨑昂奈，森河由紀弘，花田響，前田健一，佐藤智範
第58回地盤工学研究発表会 2023.07 公益社団法人 地盤工学会
Event date： 2023.07
Language：Japanese Presentation type：Oral presentation (general)
Venue：福岡市
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破砕瓦の軟弱地盤改良材としての適用性
森河由紀弘，佐藤智範，肴倉宏史，前田健一，篠田裕重
第58回地盤工学研究発表会 2023.07 公益社団法人 地盤工学会
Event date： 2023.07
Language：Japanese Presentation type：Oral presentation (general)
Venue：福岡市
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排⽔性浮き型格⼦状地盤改良による再液状化被害への対策効果
岡﨑昂奈，森河由紀弘，花⽥響，前田健一，佐藤智範
令和4年度土木学会中部支部研究発表会 2023.03 公益社団法人 土木学会中部支部
Event date： 2023.03
Language：Japanese Presentation type：Oral presentation (general)
Venue：石川県野々市市
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破砕瓦の排水性埋戻し材としての検討
森河由紀弘，佐藤智範，前田健一，篠田裕重
土木学会 令和4年度全国大会 第77回年次学術講演会 2022.09 公益社団法人 土木学会
Event date： 2022.09
Language：Japanese Presentation type：Oral presentation (general)
Venue：京都市
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排水性改良体の深度が浮き型格子状地盤改良の液状化対策効果に与える影響
花田響，森河由紀弘，前田健一，佐藤智範
土木学会 令和4年度全国大会 第77回年次学術講演会 2022.09 公益社団法人 土木学会
Event date： 2022.09
Language：Japanese Presentation type：Oral presentation (general)
Venue：京都市
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排水性の高い浮き形格子状地盤改良による液状化対策効果とそのメカニズム
花田響，森河由紀弘，前田健一，佐藤智範
第34回中部地盤工学シンポジウム 公益社団法人 地盤工学会 中部支部
Event date： 2022.08
Language：Japanese Presentation type：Oral presentation (general)
Venue：名古屋
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繊維補強材を用いた破砕瓦の設置深度の浅い埋設管への埋戻し材としての適用性
森河由紀弘，佐藤智範，前田健一，篠田裕重
第57回地盤工学研究発表会 2022.07 公益社団法人 地盤工学会
Event date： 2022.07
Language：Japanese Presentation type：Oral presentation (general)
Venue：ハイブリッド開催（新潟市・オンライン）
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排水ドレーンが液状化における過剰間隙水圧の抑制や地盤剛性に与える影響
花田響，森河由紀弘，前田健一，佐藤智範
第57回地盤工学研究発表会 2022.07 公益社団法人 地盤工学会
Event date： 2022.07
Language：Japanese Presentation type：Oral presentation (general)
Venue：ハイブリッド開催（新潟市・オンライン）
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不透水性改良体に排水性改良体を組み合わせた浮き型格子状地盤改良による液状化対策
花田響，森河由紀弘，中谷 一貴，前田健一，佐藤智範
土木学会 令和3年度全国大会 第76回年次学術講演会 公益社団法人 土木学会
Event date： 2021.09
Language：Japanese Presentation type：Oral presentation (general)
Venue：オンライン開催
Other research activities
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大規模地震にも耐えれる擁壁・護岸の土圧低減裏込材の研究開発（愛知県 新あいち創造研究開発補助事業）
2018.06 - 2019.03
大規模地震で発生が予想される擁壁・護岸の倒壊等に対して，その防止対策として土圧低減裏込材の効果が期待されている粘土瓦シャモットを使用し，実証確認する．
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破砕瓦の利活用に関する検討（路盤材，敷砂としての適用性の検討）
2017.11
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破砕瓦を用いた実物大擁壁の安定性に関する実験（国土交通省・破砕瓦の港湾工事への適用性検討委員会）
2016.01
破砕瓦の性能を評価するとともに港湾工事における適用性を検証するため，実物大の擁壁を用いた土圧の測定および擁壁の安定性について検討を行う．
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リサイクル材料である破砕瓦の有効利用に関する研究会（公益社団法人 科学技術交流財団）
2015.04 - 2016.03
愛知県の特産品である三州瓦は江戸時代から作られており、現在は全国シェア７０％の日本最大の粘土瓦ブランドとして地位を確立している。また新たに、規格外瓦を細かく砕いた破砕瓦（シャモット）がリサイクル資源として大きな関心を集めており、名古屋工業大学・愛知県陶器瓦工業組合・愛知県は共同でシャモットが液状化対策に有効であることを見出し、様々な検証を行ってきた。研究会では液状化対策をはじめとしたシャモットの有効性の更なる検証を行い、愛知県から全国に向けた製品化、普及に向けた活動を行う。
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リサイクル材料である破砕瓦の有効利用に関する研究会（公益社団法人 科学技術交流財団）
2014.04 - 2015.03
愛知県の特産品である三州瓦は江戸時代から作られており、現在は全国シェア７０％の日本最大の粘土瓦ブランドとして地位を確立している。また新たに、規格外瓦を細かく砕いた破砕瓦（シャモット）がリサイクル資源として大きな関心を集めており、名古屋工業大学・愛知県陶器瓦工業組合・愛知県は共同でシャモットが液状化対策に有効であることを見出し、様々な検証を行ってきた。研究会では液状化対策をはじめとしたシャモットの有効性の更なる検証を行い、愛知県から全国に向けた製品化、普及に向けた活動を行う。
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破砕瓦を用いた実物大の埋設管埋戻し試験
2013.12
実際に車両が通行する地盤において実物大の埋設管の設置し，愛知県の特産品である「瓦」を細かく砕いた破砕瓦による埋戻しを行った。地中には土圧センサーや温度センサーが設置してあり，また，埋設管にはひずみセンサーが設置されている。これらのセンサーによって破砕瓦の埋戻し材としての性能評価を行う。交通荷重としては10トンダンプカーが100台/日程度通過し、計測は1年間行う。1年後には舗装の撤去を行い、各種試験により破砕瓦の耐久性等を評価する。
この，埋設管の埋戻し実験では、地元メディアにも大きく取り上げられ、土木会社、大手銀行、愛知県環境部・産業労働部、高浜市・碧南市などの地方自治体から注目を集め、研究会を創設する場合において，参加の意向が示された。
Awards
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令和3年度土木学会全国大会第76回年次学術講演会 優秀講演者
2021.10 公益社団法人 土木学会
森河由紀弘
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
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平成29年度地盤工学会中部支部長（論文賞）
2018.04 公益社団法人 地盤工学会 中部支部
森河由紀弘
Country：Japan
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第29回中部地盤工学シンポジウム 優秀発表賞
2017.08 公益社団法人 地盤工学会 中部支部
森河由紀弘
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
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平成28年度土木学会全国大会第71回年次学術講演会 優秀講演者
2016.11 公益社団法人 土木学会
森河由紀弘
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
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第51回地盤工学研究発表会 優秀論文発表者賞
2016.10 公益社団法人 地盤工学会
森河由紀弘
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
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第49回地盤工学研究発表会 優秀論文発表者賞
2014.11 公益社団法人 地盤工学会
森河由紀弘
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
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第47回地盤工学研究発表会 優秀論文発表者賞
2012.09 公益社団法人 地盤工学会
森河由紀弘，包小華，前田健一，今瀬達也，張鋒
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
Scientific Research Funds Acquisition Results
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住宅にも経済的に適用可能な複合型改良体による機能性ハイブリッド型液状化対策の開発
2021.04 - 2024.03
科学研究費補助金 基盤研究(C)
森河由紀弘
Authorship：Principal investigator
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既設構造物対応の経済的なハイブリット型液状化対策（地中連続壁・排水工法）の開発
2019.04 - 2021.03
科学研究費補助金 若手研究(A)
森河由紀弘
Authorship：Principal investigator
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１９４８年型地盤工学からの脱却に向けての研究
2013 - 2015
科学研究費補助金 基盤研究(B)
中井 照夫
Authorship：Coinvestigator(s)
Other External Funds
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高摩擦・排水性を持つリサイクル材と繊維補強材を併用した災害に強い街づくり
2020.04 - 2021.03
民間財団等 公益財団法人 日比科学技術振興財団 令和２年度研究助成金（一般研究課題）
森河由紀弘
Grant type：Competitive
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環境にやさしいリサイクル材料「破砕瓦」を用いた埋設物の長寿命化
2020.04 - 2021.03
民間財団等 一般財団法人 東海産業技術振興財団 第32回研究助成金（研究育成型）
森河由紀弘
Grant type：Competitive
Past of Cooperative Research
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製鋼スラグによる地盤改良に関する研究
2014.08 - 2017.03
JFEミネラル株式会社 Other
Authorship：Principal investigator
鉄鋼業の副産物である「転炉スラグ」膨張する危険性があり，効果的な有効利用方法が確立されているとは言い難い．そこで，転炉スラグが持つ粒度分布や摩擦性，水硬性に着目し，転炉スラグの地盤改良材としての性能を検討する．
Committee Memberships
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地盤工学会 シンポジウム部会 委員
2022.04
Committee type：Academic society
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地盤工学会 若手技術者の会 委員
2017.03
Committee type：Academic society
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地盤工学会 若手技術者の会 部会長
2015.04 - 2017.03
Committee type：Academic society
Social Activities
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屋根を守る粘土瓦は、強くてやさしい再生資材「破砕瓦」となり街を守ります
Role(s)： Informant
あいちモノづくりエキスポ2023実行委員会 あいちモノづくりエキスポ2023 2023.10
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総合技術支援セミナー
Role(s)： Lecturer
あいち産業科学技術総合センター 総合技術支援セミナー 2016.11
Audience： General, Company, Governmental agency
Type：Lecture
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破砕瓦の有効利用に関する勉強会
Role(s)： Lecturer
刈谷市役所 刈谷市役所 2015.07
Audience： Governmental agency
Type：Other