Applied Study on Large Diameter Borehole Drilling and Casing Installation Technology
ZHANG Ting-hui
WANG Xin
LI Xiao-gang
Abstract：In the large diameter borehole engineering of Baode Mine ,the diameter of the casing was large ,the construction period was long ,construction difficulty was high and the engineering cost was high.A pilot borehole was firstly drilled and then a sectional reaming method was applied to the large diameter borehole construction. A new mine large diameter borehole casing installation device was ap‐plied. T he results show ed that the sectional reaming method could ensure the large diameter borehole construction successfully conducted. The new casing installation device could effectively solve the tech‐nical problems occurred in the installation process of the mine large diameter casing. The new casing installation device would have an innovation ,practices ,reliability and other advantages and could have the promotion and application values in many areas of the engineering construction.
Keywords：large diameter boreholepilot boreholesectional borehole reamingcasing installation
Publication Date：2015-05-17
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 17-20,33 )