摘要
对预制成型的多孔混凝土挂板(水灰比为0.30、孔隙率为30%、骨料粒径为10~20 mm)进行了植生试验,在选择了合适的植物生长基质以及植物之后,将结构优化后的挂板置于小型河道模拟装置中进行工程试验应用。试验表明,河塘底泥作为植物生长基质对于植物和微生物的附着生长具有良好的效果,黑麦草和高羊茅因其对于干湿环境交替的适应性以及抗逆性,可以作为植生挂板的材料应用在城市河道护岸改造中。水流试验表明,多孔混凝土挂板对于直立式硬质河道水质有一定的改善作用,该措施具有降低成本、简便易行的特点,同时,混凝土挂板上的绿色植物也起到了净化水体、装饰河道环境的作用,具备广阔的市场应用前景和科学研究价值。
This article mainly conducts planting experiments on prefabricated porous concrete siding(water-cement ratio is 0.30,porosity is 30%,aggregate particle size is 10~20 mm).The optimized hanging board is placed in the Yixing development section of Shedu Port for engineering application.Experiments show that river pond sediment as a plant growth substrate has a good effect on the attachment and growth of plants and microorganisms.Ryegrass and tall fescue can be used as materials for planting siding because of their adaptability to the alternation of dry and wet environments and their resistance to stress.It is applied in the reconstruction of urban river bank protection.The engineering application shows that the porous concrete hanging board has a certain improvement effect on the vertical hard channel.The method is not only low in cost and simple in operation,but also can beautify the environment and improve the water body,and has broad application prospects.
作者
郑红宇
王云飞
李奎鹏
ZHENG Hong-yu;WANG Yun-fei;LI Kui-peng(School of Civil Engineering,Southeast University,Nanjing 211189,China;Southeast Universuty-Monash University Suzhou Joint Graduate School,Suzhou 215123,China)
出处
《环境生态学》
2023年第3期70-74,共5页
Environmental Ecology
基金
2021年江苏省研究生实践创新计划(SJCX21-0055)资助。
关键词
植生试验
多孔混凝土挂板
护岸生态化改造
Plant test
porous concrete siding
ecological transformation of bank protection
