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http://dx.doi.org/10.12791/KSBEC.2015.24.2.069

Uplift Capacity of Pipe Foundation for Single-span Greenhouse  

Choi, Man Kwon (Protected Horticulture Research Institute, NIHHS, RDA)
Yun, Sung Wook (Institute of Agriculture & Life Science, Gyeongsang National University)
Kim, Ha Neul (Dept. of Agricultural Eng., Gyeongsang National Univ(Institute of Agriculture and Life Science))
Lee, Si Young (Dept. of Agricultural Engineering, National Academy of Agricultural Science, RDA)
Yu, Chan (Dept. of Agricultural Eng., Gyeongsang National Univ(Institute of Agriculture and Life Science))
Yoon, Yong Cheol (Dept. of Agricultural Eng., Gyeongsang National Univ(Institute of Agriculture and Life Science))
Publication Information
Journal of Bio-Environment Control / v.24, no.2, 2015 , pp. 69-78 More about this Journal
Abstract
In order to provide design data support for reducing gale damage of single-span greenhouses, this paper experimentally evaluated the uplift capacity of a rafter pipe and continuous pipe foundation (anti-disaster standard), usually used for single-span greenhouses according to compaction ratio, embedded depth, and soil texture. In the reclaimed soil (Silt loam) and the farmland soil (Sandy loam), the ultimate uplift capacities of rafter pipe were 72.8kgf and 60.7kgf, respectively, and those of continuous pipe foundation were 452.7kgf and 450.3kgf, respectively at an embedded depth of 50cm and compaction rate of 85% (the hardest ground condition). The results showed that the ultimate uplift capacity of continuous pipe foundation was significantly improved at more than 6 times that of the rafter pipe. The soil texture considered in this paper had a sand content of 35%~59% and a silt content of 39%~58%, and it was shown that the ultimate uplift capacity did not have a significant difference depending on soil texture, and these results show that installing the rafter pipe and continuous pipe foundation while maintaining appropriate compaction conditions can give an advantage in securing stability in the farmland of greenhouses without significantly being influenced by soil texture. Based on the results of this paper, it was determined that maintaining a compaction rate above 75% for the continuous pipe foundation and above 85% for the rafter pipe was advantageous for securing stability in greenhouses. Especially when continuous pipe foundation of anti-disaster standard was applied, it was determined to be significantly advantageous in acquiring stability in greenhouses to prevent climate disaster.
Keywords
Anti-disaster Standard; soil texture; degree of compaction; embedded depth; continuous pipe foundation; rafter pipe;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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