摘要
通过对西南某机场跑道高填方滑坡工程地质条件、滑坡特征及滑坡稳定性的定性及定量分析,确定该滑坡为填筑体沿基岩顶面滑动的大型堆积层滑坡。该滑坡的形成主要是由于高填方加载使坡体产生压缩变形、地表及地下水下渗降低填筑体的力学强度指标,诱发跑道填方体的推动式滑坡,挤压坡脚老滑坡体,并使其复活,最后转化为推动-牵引式复合滑坡。
According to the qualitative and quantitative analysis on the geological conditions, landslide features and landslide stability of an airport runway high-fill landslide project in the southwest, it is determined that this landslide is a large accumulation horizon landslide with large filling body sliding along the top surface of bedrock. The formation of this landslide is mainly that the high-fill loading makes the slope cause the compressive deformation, and the infiltration of surface and underground water reduces the mechanical strength index of filling body so as to induce the pushed landslide of runway filling body, squeeze the old landslide body at the foot of slope and bring it back to life, and finally translate into the push-pull composite landslide.
出处
《城市道桥与防洪》
2019年第10期36-39,M0007,共5页
Urban Roads Bridges & Flood Control
关键词
高填方
滑坡
机理分析
high fill
landslide
mechanism analysis
