Glossary entry

English term or phrase:

drift

English answer:

a horizontal passage leading into a mine (only open at one end)

Added to glossary by Jack Doughty
Feb 7, 2015 15:19
9 yrs ago
3 viewers *
English term

drift

English Tech/Engineering Construction / Civil Engineering
I dont know how to understand the "drifts" and so the phrase "in a series of drifts" in the below sentence. Please help me clarify it. Thank you.

"In the SEM, tunnel excavation and support is typically performed in a series of drifts, depending on the anticipated ground conditions, which are sequenced to develop successively larger openings."
Change log

Feb 12, 2015 06:49: Jack Doughty Created KOG entry

Responses

+5
14 mins
Selected

a horizontal passage leading into a mine

It is a mining term, used in this sense here.
Peer comment(s):

agree Tony M
7 mins
Thank you.
agree Alaa AHMED
1 hr
Thank you.
agree Yorkshireman : Exactly, aka an adit. As they were open to daylight at ground level, the old miners also called them dayholes
6 hrs
Thank you.
agree Jennifer Levey
8 hrs
Thank you.
agree B D Finch
1 day 22 hrs
Thank you.
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4 KudoZ points awarded for this answer. Comment: "Thank you for your help! I also guess this meaning but I am not confident. I also share that after checking with the client, they say drift is a tunnel open at one end only."
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