云南水力发电2025，Vol.41Issue(12)：29-32,4.DOI:10.3969/j.issn.1006-3951.2025.12.007
软硬相间岩质边坡塑流现象及破坏模式研究
Research on Plastic Flow Phenomenon and Failure Mode of Soft Hard Rock Slope
易琦 1李兵 1李飞1
作者信息
- 1. 中国电建集团昆明勘测设计研究院有限公司,云南 昆明 650051
- 折叠
摘要
Abstract
The geological strata in SVTK hydropower station area are mainly composed of sandstone and mudstone distributed in a nearly horizontal to gently dipping manner during the Mesozoic Jurassic period,with uneven thickness interbedded and Cenozoic basic extrusive rocks.The tectonic activity is mild,and the Mesozoic strata have not experienced strong compression.In sandstone and relatively intact mudstone,mudstone interlayers,softening zones,and compression zones are distributed along the rock layers,presenting a plastic mudstone with significant differences in physical and mechanical properties compared to hard rocks.The most common instability modes of rock slopes with uneven thickness distribution of soft and hard are plastic flow tensile collapse and plastic flow landslide.The key to slope support is to effectively control the expansion of the trailing edge cracks and reduce the pore water pressure inside the slope after further softening of the soft rock,especially paying attention to the connection between the weak layer and the unloading cracks to form an overall sliding instability.关键词
软硬相间/边坡工程/塑流/破坏模式Key words
soft and hard alternation/slope engineering/plastic flow/destruction mode分类
天文与地球科学引用本文复制引用
易琦,李兵,李飞..软硬相间岩质边坡塑流现象及破坏模式研究[J].云南水力发电,2025,41(12):29-32,4.
