摘要
以湘桂铁路扩能改造工程柳南段路基岩溶病害为例,根据岩溶发育程度确定其整治方案。利用压(注)水试验、综合物探方法对岩溶路基注浆质量效果进行检测。结果表明,岩溶注浆整治后,地层渗透性大大降低,地层波速大幅度提高,注浆效果明显。
In this paper,taking karst subgrade in Liunan section of Hunan-Guangxi Railway capacity expansion engineering for example,the treatment program of karst subgrade is determined based on the degree of karst development.The grouting quality of karst subgrade is detected by water pressure（injection） test and comprehensive geophysical prospecting method.The result shows that the penetrability of the subgrade is decreased significantly and the wave velocity of the subgrade is increased obviously after grouting treatment.Therefore,the effect of grouting treatment for karst subgrade is evident.
出处
《路基工程》
2011年第3期205-207,210,共4页
Subgrade Engineering
关键词
岩溶
路基
注浆
施工技术
karst
subgrade
grouting
construction technology
