Tag: borer

A raise borer is a machine used in underground mining, to excavate a circular hole between two levels of a mine without the use of explosives.
The raise borer is set up on the upper level of the two levels to be connected, on an evenly laid platform (typically a concrete pad).

Rain Gardens for Erosion Control Projects

Rain Gardens for Erosion Control Projects

Before we had the rain gardens in, everything was draining straight into the gray infrastructure in the way of storm sewers and getting taken rapidly into Trail Creek, which is a heavily used natural resource and recreational area for a lot of people. This was a great opportunity to help

Safety: Excavation and Trenching Dangers

Safety: Excavation and Trenching Dangers

Workplace safety solution professionals: How many times do we see excavation and sewer workers working unprotected in trenches? Trenches are literally filled with a variety of potential safety and environmental hazards. Cave-ins are perhaps the most feared trenching hazard as one cubic yard of soil can weigh as much as a car. Asphyxiation due to

NEWS From the AGC of America: Business, Labor, Transportation & Travel Groups Call on Presidential Candidates to Include Long-Term Funding Measures in Infrastructure Plans

NEWS From the AGC of America: Business, Labor, Transportation & Travel Groups Call on Presidential Candidates to Include Long-Term Funding Measures in Infrastructure Plans

Thirty-four of the nation’s leading business, labor, transportation and travel groups called on both major party presidential candidates to include long-term, sustainable funding measures as part of their infrastructure plans and are offering to help get those plans enacted in letters sent to both campaigns this week. The various groups

How Much Is a Tree Worth?

How Much Is a Tree Worth?

A new study has once again confirmed that trees provide great value in urban settings—and also that we don’t value them enough.

Researchers from the US Forest Service and the University of California at Davis have calculated that the annual cost to keep a city tree alive is $19. For every

Stopping Sediment

Stopping Sediment

A homeowner in Boise, ID, had recently purchased his house and wanted an entirely new look for his property. “The site was very sloped, sitting on top of a hill. So there was a lot of steep terrain involved. It was a complete remodel,” says Aaron Lowe, owner of Boden

Assisted Evolution: How Far Should We Intervene?

Assisted Evolution: How Far Should We Intervene?

We’re all probably familiar to some extent with the problems corals are experiencing in the world’s oceans. Bleaching events, in which coral polyps expel the symbiotic algae living within them, are occurring in many places including Australia’s Great Barrier Reef. Some reefs are disappearing entirely. That’s bad for the coral,

Erosion Control for Highway Construction Projects

Erosion Control for Highway Construction Projects

Linear projects have their own particular challenges when it comes to erosion control. Centralized sediment basins are usually lacking. There is the need to protect existing inlets and catch basins along the roadways and the need to work around traffic, sometimes during peak hours and at night.

Although both linear and

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