CAJ | 학술논문

我国南方大面积分布岩溶裂隙发育地层，在该类地层中进行钻探施工时存在漏失严重、塌落掉块等多方面施工难题。根据贵州瓮安地区施工实例，分析岩溶裂隙地层漏失特点，对比提出微泡沫泥浆技术在岩溶裂隙地层应用的适用性，并提出微泡沫泥浆在该类地层使用中应注意的事项。
아국남방대면적분포암용렬극발육지층，재해류지층중진행찬탐시공시존재루실엄중、탑락도괴등다방면시공난제。근거귀주옹안지구시공실례，분석암용렬극지층루실특점，대비제출미포말니장기술재암용렬극지층응용적괄용성，병제출미포말니장재해류지층사용중응주의적사항。
Karst fractured formations are largly distributed in south of China, in which serious leakage, block falling and other difficulties are often occurred in drilling construction.With the construction cases in Weng’ an of Guizhou, the analy-sis is made on the characteristics of karst formation, the applicability of micro-foam mud technology in karst fractured for-mation is put forward with some items that should be paying attention.