生态混凝土植生与抗冲刷性能研究

硅酸盐通报 ›› 2023, Vol. 42 ›› Issue (3): 917-924.

所属专题：水泥混凝土

生态混凝土植生与抗冲刷性能研究

乔建刚¹, 董进国¹, 李明浩², 刘翔¹, 李庆楼¹

1.河北工业大学土木与交通学院,天津 300401;
2.中交建冀交高速公路投资发展有限公司,石家庄 050000

收稿日期:2022-11-10 修订日期:2022-12-07 出版日期:2023-03-15 发布日期:2023-03-31
通信作者: 董进国,硕士研究生。E-mail:508668455@qq.com
作者简介:乔建刚(1963—),男,博士,教授。主要从事道路交通安全方面的研究。E-mail:qiaojg369@126.com
基金资助:
国家重点研发计划 (2017YFC0805404);国家安全生产监督总局科技项目(hebei-0009-2017AQ)

Study on Planting Performance and Scouring Resistance of Eco-Concrete

QIAO Jiangang¹, DONG Jinguo¹, LI Minghao², LIU Xiang¹, LI Qinglou¹

1. School of Civil Engineering and Transportation, Hebei University of Technology, Tianjin 300401, China;
2. Zhong Jiao Jian Ji Jiao Highway Investment Development Co, Ltd, Shijiazhuang 050000, China

Received:2022-11-10 Revised:2022-12-07 Online:2023-03-15 Published:2023-03-31

摘要/Abstract

摘要： 通过设计生态混凝土植生试验以及包含3种坡面状况、4种边坡坡度、3种降雨强度的冲刷试验对生态混凝土的植生性能及其与植物结合后的抗冲刷性能展开研究。植生试验结果表明:植生20天时,生态混凝土组植株最高为22.5 cm,植物斑化指数为95.37%,植物覆盖率为102.6%,生态混凝土组与素土组的植物茎叶生长状况相差不大,但素土组植物根系普遍更长;植生40天时,两组根系分布范围接近。冲刷试验结果表明:素土边坡与生态混凝土覆土边坡的土体流失量在特定条件下会随降雨累积量的增加产生激增,而生态混凝土植生边坡的土体流失量在各条件下均未激增;相同冲刷条件下抗冲刷性能为生态混凝土植生边坡＞生态混凝土覆土边坡＞素土边坡。

关键词: 生态混凝土, 边坡防护, 植生性能, 坡面侵蚀, 土体流失, 抗冲刷性能

Abstract: Through designing eco-concrete planting tests and scouring tests containing three slope conditions, four slope gradients, and three rainfall intensities, the planting performance of eco-concrete and its scouring resistance after combining with plants were studied. The planting test results show that at 20 d of planting, the plant height of eco-concrete planting group is up to 22.5 cm, the plant spotting index is 95.37% and the plant coverage is 102.6%. The plant stem and leaf growth conditions of the eco-concrete planting group and plain soil planting group are not significantly different, but the plant root in plain soil planting group is generally longer. At 40 d of planting, the root distribution of the two groups is close in extent. The scouring test results show that soil loss in plain soil slope and eco-concrete cladding slope can produce a surge with the increase of rainfall accumulation under specific conditions, while soil loss from eco-concrete planting slope does not surge under all experimental conditions. The scouring resistance under the same scouring condition is eco-concrete planting slope > eco-concrete cladding slope > plain soil slope.

Key words: eco-concrete, slope protection, planting performance, slope erosion, soil loss, scouring resistance

中图分类号:

TU528

乔建刚, 董进国, 李明浩, 刘翔, 李庆楼. 生态混凝土植生与抗冲刷性能研究[J]. 硅酸盐通报, 2023, 42(3): 917-924.

QIAO Jiangang, DONG Jinguo, LI Minghao, LIU Xiang, LI Qinglou. Study on Planting Performance and Scouring Resistance of Eco-Concrete[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(3): 917-924.

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生态混凝土植生与抗冲刷性能研究

Study on Planting Performance and Scouring Resistance of Eco-Concrete

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