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机构地区:[1]天津华北地质勘查局核工业二四七大队,天津301800
出 处:《探矿工程(岩土钻掘工程)》2014年第10期5-8,共4页Exploration Engineering:Rock & Soil Drilling and Tunneling
摘 要: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。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.
分 类 号:P634.6[天文地球—地质矿产勘探]
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