摘要
松散体滑坡是丘陵地区公路沿线常见的滑坡类型．滑坡体滑动面多为松散介质和基岩的交界面．滑体物质的强透水性和基岩（泥质岩类）的弱透水性构成了该类滑坡发育的主要水文地质条件．路基填土加载及车辆振动是其发育的主要动力机制．有限元数值计算表明，该类滑坡体路基部分应力梯度较大；路基内侧边坡脚出现较大范围的拉应力区．滑坡体前端具有推移性，后部具有牵引性，是一种易于进行人工综合治理的滑坡类型．滑坡治理必须是路基部分的加固（含排水）及拉应力区的保护和滑体上截排地表水的原则下进行综合治理．
Loose media landslide,one of landslide types, developes usually along highway in hill area.Thereis slide plane or slide zone between loose media above and rook blow.It must be emphasized that mostof the rock in the landslide are low permeability,so groundwater can flow obviously in loose media,which is the hydraulic condition for the landslide to develope. Loading on road base by loose media after the base subsidency or mobiles are fundmental mechanics for the landslide to slide. Tensile area beside the base are discovered after analysis by EFM The loose media landslide can be disposed in methodincluding both anchoring in road base and drainage in tensile area.
出处
《重庆交通学院学报》
1996年第4期127-130,共4页
Journal of Chongqing Jiaotong University
关键词
公路
松散体
滑坡
发育机理
s:highway,loose media landslide,numerical analysis,mechanism
