试验研究了因降雨和工程干扰而引起的失效过程和损坡的模式
1School of Civil Engineering, Chang'an University, Xian, China.
PloS one
|July 18, 2024
概括
降雨和挖掘导致岩破坏斜坡在不同的阶段和模式失败. 了解这些故障过程对于防止贫困地区的灾害至关重要.
科学领域:
- 地质技术工程 地质技术工程
- 土壤力学 土壤力学
- 环境地质 环境地质学
背景情况:
- 低谷破坏坡度容易因降雨和挖掘而发生故障.
- 了解故障机制对于坡道稳定性和灾难缓解至关重要.
研究的目的:
- 调查故障演变和loess spoil斜坡的故障模式.
- 分析降雨和人工挖掘对斜坡稳定的影响.
- 提供数据,用于灾难防治和警告系统在贫困地区.
主要方法:
- 使用室内模型测试.
- 使用图像分析,孔隙压力和位移测量.
- 测试了各种各样的腐蚀成分.
主要成果:
- 纯泥破坏坡道在下雨时表现出两种故障模式:沟形成或逐步裂损坏.
- 25%粗粒度的斜坡在经过三个破坏阶段后会产生区域性滑坡.
- 脚挖掘导致渐进的,多阶段的退缩损伤.
结论:
- 雨量引起的滑坡的故障有着不同的阶段和模式.
- 粗粒度材料的存在影响了山体滑坡的特征.
- 与仅仅降雨相比,挖掘引发了不同的故障进展.
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