Hole Design

General Concepts For Breaking Of Boulders

Boulders

Underground Excavation

Underground-Excavation

Splitting of Large Boulders

Splitting-of-Large-Boulders

Breakage of Virgin Rock

The toe should be drilled at closer hole spacing andsuccessively broken from the front row.No drilling will cause poor breakage.

Breakage-of-Virgin-Rock

The front holes (up to the sixth row) may be simultaneously filled in.It is more effective for removal to fill in one hole and then each two rows (2, 3) after a delay of 6 – 20 hours.

Trenching

Trenching

Tunneling

Tunneling

Reinforced & General Concrete

Reinforced--&--General--Concrete

Thin Concrete

Thin-Concrete

Mass-Concrete-&-Pile-Foundation

Mass-Concrete-&-Pile-Foundation

Thick Wall

Thick-Wall

Pier / Bridge / Foundation

Mass-Concrete-&-Pile-Foundation

Zone Demolition

Zone-Demolition

Delayed Filling

Delayed-Filling