通过钻（冲）孔灌注桩在江西某大型电厂岩溶地基的施工，介绍厂区的土层地质条件及岩溶发育特征，针对此地质条件钻（冲）孔灌注桩施工的工艺原理及在施工过程中遇到的坍孔、斜孔、串孔、漏浆、卡钻、掉钻、桩身混凝土下沉等问题，进行原因分析，并提出详细的预防及处理措施。

Taking the construction of the bored castinsitu concrete piles in a large electricity power plant in Jiangxi province as example, the article presents the geological conditions and the karst development features of the site. On basis of the construction process of the bored castinsitu concrete piles in such geological conditions and problems encountered during construction, such as hole collapse, hole inclination, hole connection, grout leakage, drilling tool blocking, drilling tool dropping and pile body concrete sinking, the article analyses on the causes for the problems and recommends some detailed prevention and treatment countermeasrues.