摘要
通过埋设测斜管和压力计对沪蓉西高速公路干沟填石高路堤的水平位移和水压力变化情况进行监测,研究了填石路堤高度和孔隙水压力与路堤水平位移变化的规律,发现路堤水平位移变化随着填筑高度的增加而增加,整个水平位移变化曲线呈"反S"形,且水平位移变化最大的位置,接近观测孔位高度的一半。同时发现不同层位的路堤在自重作用下大约经过90天水平变形趋于稳定。采用碾压遍数和沉降差以及必要的防排水措施作为质量控制标准是成功而有效的。
Through monitoring the changes of horizontal displacement and water pressure of high rock-filled embankment in hondo along Hurongxi Expressway with embedded inclinometer and pressure gauge,this paper studies the law of the change of rock-filled embankment height and pore water pressure with embankment horizontal displacement,and finds that embankment horizontal displacement increases with the increase of filling height;the entire change curve of horizontal displacement takes on"reverse S"and the position of maximum horizontal displacement close to half of the height of observation hole.Meanwhile,it also finds that embankments at different layers trend to stable through 90-day's horizontal deformation under deadweight effect.Therefore,it is successful and effective to adopt multiple grinding and differential settlements and take necessary waterproof and drainage measures for quality control.
作者
唐双林
TANG Shuang-lin(The 5th Engineering Co.,Ltd of the 11th Engineering Bureau of China Railway,Chongqing 400037,China)
出处
《路基工程》
2010年第1期37-39,共3页
Subgrade Engineering
基金
中国铁道建筑总公司2007年度科技攻关项目(07-10C)
关键词
高路堤
填石
质量控制
稳定性
水平位移
high embankment
rock filling
quality control
stability
horizontal displacement
