PLANTING UNIT

To smoothly drain water by gravity in a planting part provided integrally with an earth retaining wall while facilitating the maintenance of the planting part or drainage system after completion of the building and to maintain the sanitation and aesthetic appearance of the building environment by preventing soil particles and the like, which tend to be mixed in the drainage from the planting part, from affecting the earth retaining wall.SOLUTION: A planting unit 100 is provided so as to protrude from a surface 10a of the earth retaining wall 10 which resists earth pressure, a drain pipe 31 having a space above the planting part 20 provided integrally with the surface 10a of the earth retaining wall 10 and a wall base part from which the bottom of the planting part 20 and the earth retaining wall 10 rises such that drainage can flow down therebetween; and a net-like member 33 provided to partition the space above the drain pipe 31 and a planting space 26 and provided between the planting space 26 of the planting part 20 and the drain pipe 31.SELECTED DRAWING: Figure 3 【課題】土留壁体と一体にして設ける植栽部において、重力による排水を円滑に行うと共に、建物の竣工後の植栽部や排水系のメンテナンスを容易にする。また、植栽部から生じる排水に混入しがちな土粒子等による汚れが土留壁体に影響しないようにして、建築環境の衛生や美観を保持する。【解決手段】植栽ユニット１００は、土圧に対抗する土留壁体１０の表面１０ａから張り出して設けられ、土留壁体１０の表面１０ａと一体に設けられた植栽部２０と、植栽部２０の下部と土留壁体１０が立ち上がる壁体根元部との間で排水が流下可能に設けられ、その上部に空間を有する排水管３１と、植栽部２０の植栽空間２６と排水管３１の上部との間に設けられ植栽空間２６と排水管３１の上部の空間とを仕切る網状部材３３とを備える。【選択図】図３