The Journal of Engineering Geology (지질공학)

The Korean Society of Engineering Geology (대한지질공학회)
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Technology Trends and Patents Analysis of Auger bit for Deep Cement Mixing (DCM) Method

심층혼합처리 공법용 오거비트의 기술동향 및 특허분석

  • Received : 2018.07.18
  • Accepted : 2018.08.24
  • Published : 2018.09.30
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Abstract

To set up the future research and development direction for Auger bit, this study analyzed publicized patent trends of Deep Cement Mixing method (DCM) in Korea, USA, Japan, and Europe. DCM method was firstly classified into wing shapes and the number of rods according to the technical scope, and secondly, classified into 8 types according to type of screw and rotation axial. A total of 2,815 patents were searched and 448 validated patents were selected through de-duplication and filtering. As a result of the analysis of the portfolio through the number of patents and growth stages, it was selected as the core technology that auger is deemed to have high growth potential and if there is a patent similar to core technology through a patent barrier analysis, the basic data is suggested to develop the design around and differentiated technologies.

본 연구에서는 오거비트에 대한 향후 연구개발 방향을 설정하기 위하여 전체 심층혼합처리공법에 대한 한국, 미국, 일본 및 유럽에서의 출원 공개/등록된 특허를 중심으로 특허 동향을 분석하였다. 심층혼합처리공법을 대상으로 기술 범위에 따라 1차적으로 날개 형태와 로드의 개수로 분류하고, 2차적으로 스크류 타입과 회전축의 타입에 따라 8가지로 분류하였다. 특허 검색 결과 총 2,815개가 검색되었으며 중복제거 및 필터링을 통하여 448건의 유효 분석대상 특허를 선별하였다. 특허건수와 성장단계를 통한 포트폴리오 분석 결과 성장가능성이 높다고 판단되는 오거를 핵심기술로 선정하였으며, 이에 대한 특허장벽 분석을 통하여 핵심기술과 유사성이 높은 특허가 있을 경우 회피설계 및 타기술과 차별화된 기술 개발을 할 수 있는 기초자료를 제시하였다.

Keywords

References

  1. Agitating Device for Ground Improvement with Reinforced Excavation Capability and Soil Improvement Method Using It, 2005, KR Patent No. 1020040047851.
  2. Ahn, J.S., Choi, J.G., 2011, Patent Analysis on the Treatment Technology for Acid Soil and Acid Drainage, The Journal of Korean Society of Mineral and Energy Resources Engineers, 48(3), 359-370 (in Korean with English abstract).
  3. Breschi, R.H., 1996, Technological Change and International Competitiveness :The Case of Switzerland, Carlo Cattaneo University Liuc Papers, Serie Economia e Impresa 7, 31, 46.
  4. Chun, Y.C., 2010, A Study on the Geotechnical Behaviors issued by Application of DCM Method on Land Civil Works, MSc Thesis, Kyonggi University (in Korean with English abstract).
  5. Coastal Development Institute of Technology, 2000, The Deep Mixing Method : Principle Design and Construction, 123.
  6. Drill Stirrer for the Hard Soil Layers, KR Patent No. 1020140027597, 2014.
  7. Enhanced Ground Improvement of Mixing Device and Method of Ground Improvement, 2013, KR Patent No. 1020120051545.
  8. Hwang, S.H., Kim, J.S., Kim, M.H., Yang, G.S., Huh, N.Y., 2014, Application model for DCM method of BOX lattice type in area of high waves and deep water depth, Journal of The Korean Geotechnical Society, 30(3), 8-21 (in Korean).
  9. Jung, D.H., Jeong, G.H., Yang, T.S., 2007, Case Studies of Penetration Characteristics of DCM Wall Using Spiral Mixing Blades in Soil Layers, Journal of The Korean Geotechnical Society, 23(3), 133-140.
  10. Multi-purpose Mixing Blade for Setting Vertical Liningwall in Deep Mixing Method in Civil and Environment, 2003, KR Patent No. 1020010003127.
  11. Park, H., Lee, J.M., Cho. S.H., 2012, Alternative Soil Improvement Method with Deep Cement Mixing Method in HCMC, Vietnam, Journal of The Korean Geotechnical Society, In Proceedings of The KGS Spring National Conference, 2012, 323-330 (in Korean with English abstract).
  12. Shin, H.Y., Kim, B.I., Kim, K.O., Han, S.J., 2014, A Comparative Study of Structural Analysis on DCM Improved by Pile and Block Type, Journal of The Korean Geotechnical Society, 30(4), 5-19 (in Korean with English abstract). https://doi.org/10.7843/kgs.2014.30.4.5
  13. Terashi, M., 2005, K.3 Keynote Lecture: Design of Deep Mixing in Infrastructure Applications, Proceedings of The International Conference on Deep Mixing-Best Practice and Recent Advances, Stockholm, Sweden, Report, 13-1.2, 126.
  14. The Deep Mixing Apparatus to Strengthen Weak Stratum and Deep Mixing Process Using That, 2011, KR Patent No. 1020100087679.
  15. Variable Stratum Mixing Equipment, 2004, KR Patent No. 2020040009362.