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Feature Articles

[Kajima R&D -Initiatives for Smart Cities and Society]

• Towards Realizing Sustainable Smart Cities and Society
  Hiroaki Nakagawa
• Technologies to Realize Smart Cities and Society
  Norio Suzuki，Takashi Koga，Masaki Shioya，Yoshinori Koshikawa，Tsuyoshi Takai and Koji Kondo

[Realization of Smart Wellness]

• Update of Sleep Environment Improvement System “ＮＥＭ-ＡＭＯＲＥ”
  Katsuhiko Sakata, Takashi Gondo, Motoki Yairi, Takubi Hamano, Yuuki Hoshi, Tsutomu Uenomachi and Katsuyasu Ohnishi
• Development of Wellness Space “SOTOBEYA”
  Katsuhiko Sakata, Takashi Gondo, Motoki Yairi, Hiroyuki Kaneko, Hiroyuki Takasuna, Tadashi Kudo，Shigeyoshi Tanaka and Shinya Takemoto

[Energy Systems Supporting a Smart City]

• Net Zero Energy Building in the Tropics - Hybrid Air-Conditioning System for NUS SDE4 Building -
  Yuichi Takemasa，Kuniaki Mihara，Takamasa Hasama，Takashi Gondo，Eikichi Ono and Yoshinobu Arai
• Energy Network Simulation Tool for Energy Conservation
  Kuniaki Mihara，Eikichi Ono and Yoshinobu Arai
• Verifi cation Project of Hydrogen Supply Chain Utilizing Hydrogen from Livestock Excreta
  Koichi Hachimura and Tadashi Ohno
• Renewable Energy Heat Pump System
  Masaki Shioya，Katsuhiro Miura，Eikichi Ono，Taizo Shimo and Tomohiro Teranishi

[Development of a City in Harmony with the Natural Environment]

• Evaluation Model of Bio-diversity Potential for Supporting Biotope Layout and Design
  Yoshinori Koshikawa，Satoru Itagawa and Haruo Takayama
• Rooftop Gardening with High Environmental Mitigation Effect “Ever Cool Garden”
  Tadashi Kudo

[Building a Safe and Secure City]

• “q-NAVI”: Structural Health Monitoring System for Earthquake Emergency Response
  Katsuhisa Kanda and Saori Ogasawara
• Advanced Urban Flood Simulation System
  Toshihiko Takahashi
• Numerical Simulations of Tsunami Propagation and Inundation
  Toshihiko Takahashi，Nobuyuki Iwamae and Kazuki Suzuki
• Development and Utilization for Disaster Information Sharing System
  Tsuyoshi Takai，Tomohiko Hatada and Hideaki Kuwana
• Evaluation Technique of Respiratory Aerosol Dispersion by High-Accuracy Airflow Simulation
  Takamasa Hasama

[Induction of the Flow of Cars and People]

• Simulation of Vehicle Traffic Flow - Impact Assessment of Construction and Development -
  Kazuhiro Amano，Naoki Mita and Yasuhiro Nakamura
• Simulation of People Flow for Building Design - Daily Behavior and Evacuation Behavior -
  Kazuhiro Amano，Osamu Imazeki，Hiroyuki Kaneko，Hideaki Kuwana，Naoki Mita，Takuzou Ida and Yasuhiro Nakamura
• Evaluation Method of Comfortable Pedestrian Space Using Pedestrian Trajectory Data
  Hiroyuki Kaneko，Miho Fukui and Toshihiro Osaragi

[Maintenance and Management of a City Using Advanced Technologies]

• Optical Fiber Sensor for Infrastructure Maintenance
  Michio Imai，Motoyuki Mizunari，Yu Oyaizu and Minoru Iwai
• Study on the Infrastructure Stock Effect for Changing the Future of Community Developments
  Yoriyuki Yamada
• City Maintenance Using Data Platform
  Sumihiro Ueda
• Development of Management System of Buildings Using IoT / AI “Kajima smart BM”
  Masaya Hiraoka，Hidekuni Mashimo and Yusuke Suzuki

Research Papers

[Geotechnicai and Geological Engineering and Rock Mechanics]

• Elucidation of Jamming Mechanism during Shield Tunnel Excavation and Development of Detection and Countermeasure Technology
  Kotaro Kubota，Kenichi Kawano，Hideki Nagatani and Yusuke Nakajima
• Development of Technology for Total Control of Embankment Quality - Technology for Total Control of Material Quality (Water Content, Grain Size) and Quality of Compacted Soil -
  Yoshikatsu Yonemaru，Katsutoshi Fujisaki，Teru Yoshida，Akihiro Matsumoto and Keisuke Tanaka
• Development of a 3D Quality Management System for Dam Foundation Grouting Based on Fracture Information
  Keisuke Kurihara，Daisuke Fukushima，Takako Miyoshi and Kazuhiko Masumoto
• Measurement of Crack Opening of Rock Mass for Dam Grouting by Distributed Fiber Optic Strain Sensing
  Yu Koizumi，Saki Kurokawa，Kazuhiko Masumoto，Michio Imai，Junichi Kawabata and Masako Miyaishi

[Structural Engineering and Aseismic Technology]

• Deformation Capacity of RC Pier Reinforced with Castable Ultra-High-Strength Fiber-Reinforced Mortar and its Evaluation Method
  Takuya Iwamoto，Naoki Sogabe，Shinichi Yamanobe，Satoru Kobayashi，Masaru Fujishiro，Takashi Matsumoto and Atsushi Maeyama
• Structural Properties of Robot Welded Beams without a Weld Access Hole
  Daiki Hinata，Jun Kubota，Yoshikazu Sawamoto，Masaya Taki，Takashi Kato，Yoshiharu Sato and Nobuo Fujimoto
• Shear Stress Transmission of Underground Diaphragm Wall Joints Using Perfobond Strips
  Makiko Hikita，Akira Miyata，Kimitoshi Sano and Koichi Nishimura
• A Study on the Accuracy of the Finite Element Method with Face-to-Face Multi-Point Constraints in Static Problems
  Toshihide Saka，Atsushi Sando and Toshihiro Koiso

[Materials and Construction Systems]

• Development of Fillers According to Various Performance Requirements and Examination of Application to Prepacked Concrete
  Satoru Kobayashi and Takeshi Torichigai
• Effect of Locally Generated Soil on the Workability of CSG Materials
  Natsuko Sugaya，Toshinari Mukai，Takeshi Torichigai，Kenzo Watanabe and Goro Sakai
• Experimental Study on Controlling the Acceptance of the Total Amount of Concrete
  Shuji Matsumoto，Manabu Hashimoto，Kenzo Watanabe，Kazuhide Kurata and Shuji Yanai
• Fundamental Study on Psocoptera for Pest Control of Buildings
  Eriko Takehiro, Takeshi Wakui, Hideyuki Meguro and Ko Tomita

[Building Environment Engineering]

• Study on an Optimized Partial Cooling System in Railway Stations
  Katsuhiro Miura，Kenji Takagi，Hiroyuki Kaneko，Masako Ota，Miho Fukui，Hidetaka Yagi,Takayuki Kashiwa, Akifumi Kobayashi and Atsushi Takase
• The Effects of a Biophilic Meeting Space on Physiological Response and Meeting Efficiency
  Takashi Gondo，Katsuhiko Sakata，Motoki Yairi，Hiroyuki Takasuna，Hiroyuki Kaneko,Kumika Seki，Toshiharu Ikaga and Gaku Inaba

[Environmental Engineering]

• Effects of Various Environmental Factors on the Photosynthesis and Transpiration Rates of Hydroponic Licorice under a Controlled Environment
  Tadashi Kudo
• Water Quality Monitoring System Using Shellfish
  Boon Keng Lim，Hanako Nakamura and Yoshinori Koshikawa

[Earthquake，Wind and Wave Engineering]

• Peak Internal Pressure Coefficients on the Inner Wall of the Machine Room of the Production Facility with Openings in the Outer Wall
  Manabu Yamamoto，Keigo Nakajima，Takashi Miyanaga and Kahoru Nakayama
• Estimation of Two-Dimensional S-Wave Velocity Structure of Shallow and Deep Sedimentary Layers based on Waveform Inversion
  Kentaro Kasamatsu

Technical Report

[Materials and Construction Systems]

• Application of a River Water Level Prediction System to a River Work Site
  Tomoaki Itaya，Yumi Shimbo，Nobuyuki Iwamae and Kazuki Suzuki