Excavation Methods: Drilling Procedures

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What are the two types of drilling procedures classified by?

Equipment cost

Manual and mechanized (correct)

Drilling locations

Drilling parameters

What is the main advantage of bench drilling?

Provides a free face for material projection (correct)

Works well with manual drilling

Suitable for underground operations only

Allows for horizontal blastholes

What is the trend in drilling for drifting and tunnelling?

Towards smaller drilling equipment

Towards horizontal blastholes

Towards total mechanization (correct)

Towards manual drilling

What type of drilling is used in small operations?

Manual drilling Signup and view all the answers

What is the purpose of an initial cavity in drilling for drifting and tunnelling?

To direct the rest of the fragmented rock Signup and view all the answers

What is production drilling used for?

Fragmenting rock for further processing Signup and view all the answers

What term is used in mining operations to describe the labor of ore extraction?

Underground Drilling Signup and view all the answers

What method is used for drilling rocks with overburden?

Special drilling with casing Signup and view all the answers

What is the first phase in rock support operations?

Drilling Signup and view all the answers

Why is the long blasthole method still used today?

Because of lack of space in drifts Signup and view all the answers

What is necessary in many underground and civil engineering projects?

Opening raises Signup and view all the answers

Excavation Methods: Drilling Procedures

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Questions and Answers

What are the two types of drilling procedures classified by?

What is the main advantage of bench drilling?

What is the trend in drilling for drifting and tunnelling?

What type of drilling is used in small operations?

What is the purpose of an initial cavity in drilling for drifting and tunnelling?

What is production drilling used for?

What term is used in mining operations to describe the labor of ore extraction?

What method is used for drilling rocks with overburden?

What is the first phase in rock support operations?

Why is the long blasthole method still used today?

What is necessary in many underground and civil engineering projects?

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