EGU2020-16511, updated on 12 Jun 2020
https://doi.org/10.5194/egusphere-egu2020-16511
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Flexible slope protection for the steep Pisha sandstone slopes based on hydraulic polyurethane combined with planting mate

Yanbing Zhao1, Caiqian Yang1,2, Feng Qu1, Zhiren Wu3, Zhishui Liang1, and Wenbo Ma2
Yanbing Zhao et al.
  • 1Southeast University, School of Civil Engineering, School of Civil Engineering, China (ybzhao@seu.edu.cn)
  • 2College of Civil Engineering & Mechanics, Xiangtan University, Xiangtan, China
  • 3School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang , China

The vegetation and stability of Pisha sandstone slopes are insufficient due to its inherent properties, such as low erosion resistance, strength, water stability, and high porosity. In this paper, a new flexible slope protection method, which considers the combination of hydraulic polyurethane(W-OH) and planting mate technology, is proposed to realize the ecological restoration and prevent soil erosion of the steep Pisha sandstone slopes. The properties of consolidated body of W-OH and Pisha sandstone were investigated. Furthermore, the optimal proportion of the nutrient substate was obtained by orthogonal test via laboratory and on-site experiments. The results illustrate that with 5% W-OH, the average compressive strength and water stability index of the consolidated body can reach about 6.70 and 3.71 times higher than the blank group. The on-site experiments demonstrate that the vegetation coverage of the optimal group reaches 85% after three months curing, which is 5.2 times that of the blank group.

How to cite: Zhao, Y., Yang, C., Qu, F., Wu, Z., Liang, Z., and Ma, W.: Flexible slope protection for the steep Pisha sandstone slopes based on hydraulic polyurethane combined with planting mate, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-16511, https://doi.org/10.5194/egusphere-egu2020-16511, 2020

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