공동주택 정원 수목성장에 따른 인공지반 적재하중 변화 연구- 인천광역시 보행중심 아파트를 사례로 -

Abstract

This study aimed to provide a quantified basis for judgment in load calculation considering the variability in tree growth when constructing artificial grounds in and making structure plans of apartment complexes in response to the growing trend of garden apartments on the ground. The purpose of this study was to provide theoretical and practical technical data on the development of sustainable tree planting technologies and long-term maintenance plans of large trees considering load and tree growth when implementing landscaping projects on artificial grounds. we investigated and analyzed the effect of tree load change on the slab structure for 10 years by calculating the weight of trees at the time of completion and the weight of trees grown for 10 years. Trees planted on the target site were killed at similar rates regardless of natural or artificial grounds. The result of calculating the total weight of the trees at the time of completion was 211.71 tons, which was 82.09 ton and 129.62 ton, respectively, on the natural grounds and artificial grounds. The total weight of the trees increased by 219.14 tons to 430.85 tons over 10 years, and the total weight of trees planted on artificial grounds also increased by 134.99 tons to 263.59 tons, which showed the growth status of trees was similar regardless of both natural and artificial grounds. The weight per unit area of landscape planting increased from 7.46kg/m2 in 2011 to 15.19kg/m2 in 2020, and the live load per unit area on the artificial grounds increased from 72.38N/m2 in 2011 to 147.19N/m2 in 2020. Judging by an increase trend of 74.81N/m2 over 10 years, that is, an increase of 7.481N/m2 per year, it was predicted that the live load of the trees planted on the artificial grounds would be 820.48N/m2 even after 100 years, which would not reach 3,000N/m2, the criteria for the live load above an underground parking lot. Through this study, it was found that there was a problem of poor growth with the death of trees when planting trees with excessive density looking at the status of apartment complexes with mostly artificial grounds in Korea, and that it is necessary to prepare an institutional arrangement that could be accompanied by landscape management such as pruning after planting and adjusting the amount of roots for trees that are expected to grow as large trees that could affect the load on artificial grounds.