关于MICP适应性和稳定性的研究改善了植被坡道保护
Chongpeng Bu1,2, Yonghua Wang1,2, Wei Huang3
1China JK Institute of Engineering Investigation and Design Co, Ltd., Xi'an, 710043, China.
Scientific reports
|March 13, 2026
概括
微生物诱导的碳酸沉 (MICP) 增强了植被斜坡的保护. 虽然MICP可以抑制植物发芽,但它显著提高了土壤侵蚀抵抗力和机械强度,提高了坡道稳定性.
科学领域:
- 地质技术工程 地质技术工程
- 环境工程 环境工程
- 土壤科学 土壤科学
背景情况:
- 微生物诱导的碳酸沉 (MICP) 和植被被用于斜坡保护.
- MICP,植物根和土壤稳定性之间的相互作用需要进一步研究.
研究的目的:
- 评估MICP对植被发芽,耐侵蚀性和土壤力学的影响.
- 探索MICP固化的根土复合物的适应性和稳定性.
主要方法:
- 进行了植物适应性和耐侵蚀性测试.
- 在MICP固化根土复合体上进行了三轴压缩试验.
主要成果:
- 应用MICP,特别是喷频率,会对Tall fescue和Paspalum notatum的发芽率产生负面影响.
- MICP显著提高了土壤侵蚀抵抗力,在6次喷涂后,侵蚀率降至1.5%.
- 用MICP增强的根土复合材料表现出应变硬化,凝聚力 (c) 和摩擦角度 (φ) 的增加与碳酸和根含量相关.
结论:
- MICP技术有效地提高了根土复合材料的强度和稳定性,观察到80%的强度增加比率.
- MICP显示了增强植被斜坡保护技术和改善斜坡整体稳定的巨大潜力.
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