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Characteristics of Uplift Capacity of House Pipe Foundation according to Foundation Types and Soil Conditions

기초형식 및 지반조건에 따른 하우스파이프기초의 인발저항력 특성

  • Song, ChangSeob (Dept. of Agricultural and Rural Engineering, Chungbuk National University) ;
  • Jang, UngHee (Korea Rural Community Corporation) ;
  • Choi, DookHo (Dept. of Agricultural and Rural Engineering, Chungbuk National University) ;
  • Kim, JungChul (Dept. of Agricultural and Rural Engineering, Chungbuk National University)
  • Received : 2020.01.08
  • Accepted : 2020.01.20
  • Published : 2020.01.31

Abstract

The area of facility horticulture in Korea is increasing rapidly, the single-span pipe house which uses galvanized steel pipe as the main rafters occupies 78.7% of the facility area. Lightweight structures such as the single-span pipe house are vulnerable to meteorological disasters such as strong winds, economic losses of the state, local governments and farmers are continuing as construction does not meet the design standards. In order to minimize economic losses in the horticultural specialty facilities sector, the Rural Development Administration has been operating the horticultural disaster resilient standard for horticultural specialty facilities since April 2007. The only standard for the pipe connector is the disaster resilient standard, there is no standard for the uplift capacity of the house pipe foundation and the research on it is also insufficient. The purpose of this study is to investigate the characteristics of uplift capacity according to the foundation type, compaction ratio and embedded depth through soil box test. The results of the maximum uplift capacity according to the type, compaction ratio and embedded depth can be used as the basic data for the basic design of the pipe house conforming to the disaster resilient standard. Due to the limitation of soil box test, it may be different from the behavior of pipe house installed on site. In the future, the field test and the actual pipe house should be made and supplemented by comparing this result with the field test values.

Keywords

References

  1. American Society for Testing Materials (ASTM), 2007. Standard Test Methods for Deep Foundations Under Static Axial Tensile Load(D3689-07), America
  2. Choi, M. K., S. W. Yun, H. N. Kim, S. Y. Lee, D. H. Kang, and Y. C. Yoon, 2015. Uplift capacity of spiral bar through the model experiment. Protected Horticulture and Plant Factory 24(3): 202-209 (in Korean). https://doi.org/10.12791/KSBEC.2015.24.3.202
  3. Lee, B. G., S. W. Yun, M. K. Choi, S. Y. Lee, S. W. Moon, C. Yu, and Y. C. Yoon, 2014. uplift bearing capacity of spiral steel peg for the single span greenhouse. Protected Horticulture and Plant Factory 23(2): 109-115 (in Korean). https://doi.org/10.12791/KSBEC.2014.23.2.109
  4. Lee, S. G., J. W. Lee, C. S. Kwak, and H. W. Lee, 2008. Experimental study on the ground support conditions of pipe ends in single span pipe greenhouse. Journal of Bio-Environment Control 17(3): 188-196 (in Korean).
  5. Lim, S. Y., Y. Y. Kim, S. C. Yu, and M. H. Kim, 2019. Characteristics of uplift capacity of a embedded foundation and soil type. Journal of Korean Society of Agricultural Engineers 61(3): 23-30 (in Korean). https://doi.org/10.5389/KSAE.2019.61.3.023
  6. Ministry of Agriculture, Food and Rural Affairs (MAFRA), 2019. Present condition of vegetable grown in facilities and vegetable production performance, Korea.
  7. Ministry of Agriculture, Food and Rural Affairs (MAFRA), Rural Development Administration(RDA), 2014. Designated notice of standards to endure disaster for horticultural and special facilties, Korea.
  8. Yun, S. W., M. K. Choi, S. Y. Lee, and Y. C. Yoon, 2015a. Uplift capacity of continuous pipe foundation for prevention of meteorological disaster. Journal of Agricultural & Life Science 49(5): 303-310 (in Korean).
  9. Yun, S. W., M. K. Choi, S. Y. Lee, C. Yu, and Y. C. Yoon, 2015b. Uplift capacity of wood pile for greenhouse foundation. Protected Horticulture and Plant Factory 24(2): 123-127 (in Korean). https://doi.org/10.12791/KSBEC.2015.24.2.123