发生在福建省安溪县剑斗镇湖丘角落的岩溶地面塌陷，具有典型的多因素致塌的特点。
Karstic ground subsidence , occurred in Huqiou-jiaoluo of Jiandou town , Anxi county , Fujian province , is a typical one caused by multi-factor .
剑斗镇