A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PRESSURE-RESISTANT BASE SOIL FOR PLANTING LAWN
PROBLEM TO BE SOLVED: To provide a pressure-resistant base soil for planting lawn that allows a car to temporarily park on or pass through a lawn playground or a school yard temporarily or unusually.SOLUTION: A pressure-resistant base soil 1 is constructed underneath natural sod 2. The pressure-resistant base soil 1 is formed by mixing large-diameter aggregate A having continuous voids with organic soil improvement material B, to have a CBR value that represents a bearing capacity ratio of road bed of 25% or more, a weight ratio of the large-diameter aggregate A between 60 and 90%, and a ratio of the organic soil improvement material B between 40 and 10%. The large-diameter aggregate (A) having continuous voids used are hard volcanic pumice stone and volcanic ash soil from the Kirishima mountain range.SELECTED DRAWING: Figure 3
【課題】芝生のグラウンドや、芝生の校庭を、一時的に、また非日常的に、自動車が駐車したり、通過することの可能な芝生植生用の耐圧基盤土壌を提供する。【解決手段】天然張り芝２の下層に施工する耐圧基盤土壌１であって、該耐圧基盤土壌１は、連続空隙を有する大粒径骨材Ａと有機質土壌改良材Ｂと混合して構成し、路床土支持力比であるＣＢＲ値が２５％以上であり、該大粒径骨材Ａは重量比率６０〜９０％とし、有機質土壌改良材Ｂを４０〜１０％とし、前記連続空隙を有する大粒径骨材（Ａ）を、火山性の硬質軽石とし、霧島系火山灰土であるぼら土とした。【選択図】図３
PRESSURE-RESISTANT BASE SOIL FOR PLANTING LAWN
PROBLEM TO BE SOLVED: To provide a pressure-resistant base soil for planting lawn that allows a car to temporarily park on or pass through a lawn playground or a school yard temporarily or unusually.SOLUTION: A pressure-resistant base soil 1 is constructed underneath natural sod 2. The pressure-resistant base soil 1 is formed by mixing large-diameter aggregate A having continuous voids with organic soil improvement material B, to have a CBR value that represents a bearing capacity ratio of road bed of 25% or more, a weight ratio of the large-diameter aggregate A between 60 and 90%, and a ratio of the organic soil improvement material B between 40 and 10%. The large-diameter aggregate (A) having continuous voids used are hard volcanic pumice stone and volcanic ash soil from the Kirishima mountain range.SELECTED DRAWING: Figure 3
【課題】芝生のグラウンドや、芝生の校庭を、一時的に、また非日常的に、自動車が駐車したり、通過することの可能な芝生植生用の耐圧基盤土壌を提供する。【解決手段】天然張り芝２の下層に施工する耐圧基盤土壌１であって、該耐圧基盤土壌１は、連続空隙を有する大粒径骨材Ａと有機質土壌改良材Ｂと混合して構成し、路床土支持力比であるＣＢＲ値が２５％以上であり、該大粒径骨材Ａは重量比率６０〜９０％とし、有機質土壌改良材Ｂを４０〜１０％とし、前記連続空隙を有する大粒径骨材（Ａ）を、火山性の硬質軽石とし、霧島系火山灰土であるぼら土とした。【選択図】図３
PRESSURE-RESISTANT BASE SOIL FOR PLANTING LAWN
芝生植生用の耐圧基盤土壌
GAMO MIKIO (author)
2016-05-26
Patent
Electronic Resource
Japanese