摘要
论述绳钻技术在已钻挖形成的大深度地下连续墙槽孔内取芯研究应用情况及取得的效果,即从工艺特点、工艺原理、施工工艺流程、操作要点及应用成果等方面进行了详细的论述。该施工工艺可以解决复杂地层的地下连续墙深槽孔内常规提钻取芯容易造成塌孔问题,具有较强的实践性和指导意义。
The paper describes the results of coring in the formed deep underground continuous wall trench by application of wireline core drilling technology, and details the characteristics of the technology, the process principle, the construction process, operation key points and application results. This technology can solve the problem of caving that often occurs during coring in deep underground continuous wall trench with complicated stratum by conventional drilling method, so it is practical and instructive.
出处
《西北水电》
2009年第1期38-40,共3页
Northwest Hydropower
关键词
地下连续墙
槽孔内
取芯工艺
underground continuous wall
inside trench
coring technology
