在吉林省中部城市引松供水工程钻探中,某段地层很复杂,为了更好地提高地质成果质量,取得翔实的勘察资料,我单位在工程地质勘察中采用绳索取芯钻探施工技术。从施工实例可看到,绳索取芯钻探技术与普通钻进取芯相比,在钻穿复杂地层方面,可以更好地保证岩芯采取率,提高钻进效率、降低工程成本。 In the drilling of Songsong water supply project in the central city of Jilin Province, a certain strata is very complicated. In order to improve the quality of geological achievements and obtain informative survey data, our unit adopts rope coring drilling technology in engineering geological prospecting. As can be seen from the construction examples, compared with ordinary drilling and coring, the rope coring drilling technology can better ensure the core adoption rate, improve the drilling efficiency and reduce the construction cost when drilling through complicated formations.