摘要
深汕高速公路西段原K101边坡为一古滑坡体,先后采用了抗滑桩明洞等永久支护方案和设置截排水沟、仰斜排水孔等排水措施,但在2001、2008年度持续强降雨期间仍观测到有滑移变形,期间滑动面受到地下水的浸泡是边坡变形的关键因素,2012年尝试采取"竖向集水渗管+渗井+水平排水隧洞"为主的三维立体截排水系统进行滑坡处治,成功在滑坡区内暗挖成洞成孔截排水,工后监测表明该系统能有效截排地下水,显著降低地下水位,从而保持了边坡稳定,可为类似滑坡治理工程提供参考。
The west section of Shenzhen-Shantou Expressway K101 slope was an ancient landslide body,it has adopted the anti-slide pile and setup the drains and inclined drain holes to treatmented before. But we still can be observed it has moved and deformationed during rainy seasons in 2001 and 2008. The sliding surface was immersioned by groundwater is the key. We try to treatment it by the method of 'vertical water infiltration pipes + leakage wells + horizontal drainage tunnels' in 2012. The method has adopted hidden-digging holes and drainage tunnels to interception and drainage water in the landslide area. After the completion of the project,the construction monitoring data show that the system is available to drainage groundwater,and it can keep the slope stability. So,this treatment can provide reference for similar engineering of landslide treatments.
出处
《广东土木与建筑》
2014年第2期48-51,共4页
Guangdong Architecture Civil Engineering
关键词
滑坡
三维立体截排水系统
排水隧洞
渗井
竖向集水渗管
古滑坡体
slope
three methods for interception and drainage water system
drainage tunnels
leakage wells
vertical water infiltration pipes
an ancient slope body
