书名：Specification of Overburden Drilling Techniques for Hydropower Projects（水电工程覆盖层钻探技术规程） NB/T 35066-2015

书号：155170.652

定价：500元

作者：国家能源局

内容介绍

This specification is formulated with a view to specifying the overburden drilling contents, methods and technical requirements for hydropower projects, in order to standardize overburden drilling operation, assure the quality of drilling, and satisfy the requirements of engineering geological evaluation.