摘要
本次抽水试验引起的塌陷主要是因为地面排水入渗引起的机械潜蚀所致。试验发现 ,大的水位降深所引起的塌陷较快 ;小的水位降深、稳定的抽水也可引发岩溶塌陷 ,只是速度较慢、塌坑较小。塌陷的发生主要出现在水位降落漏斗 1
Because the drainage water caused mechanic suffosion, its infiltration has led to karst collapses. The experiment shows that the bigger drawdown can cause the collapse faster. It is also indicated that the small and steady bumping can cause karst collapses though the subsidence rate is slow. The range of collapsing is mainly within the 1/9 cone of depression.
出处
《桂林工学院学报》
2000年第S1期91-95,共5页
Journal of Guilin University of Technology
基金
国家计委防灾减灾项目-计司国地! ([1996 ]12 )项目资助
关键词
岩溶区
抽水
塌陷
试验
karst area
bumping
collapse
experiment
