摘要
通过嘉陵江亭子口水利枢纽大口径基岩取芯钻探成功应用,介绍了大口径地质钻探的技术特点和施工工艺,阐述了牙轮钻头成孔的工艺参数和操作要点,通过对传统取芯工艺的研究和创新,使用了一种新的大口径取芯工具,大大提高了取芯效率。
Through the successful application of large-diameter bedrock coring drilling in Tingzikou Hydro-junction on the Jialing River,we introduce the construction technology and characteristics of large-diameter geological drilling,describe the main operation points and technique parameters of hole-forming by roller bit.Through research and innovations of conventional coring techniques,we adopted a new large-diameter coring tool,and improved the coring efficiency obviously.
出处
《人民长江》
北大核心
2010年第8期24-26,54,共4页
Yangtze River
关键词
大口径
牙轮钻头钻进
取芯技术
地质钻探
亭子口水利枢纽
large-diameter
roller bit drilling
coring technique
geological drilling
Tingzikou Hydro-junction
