Description

The squeezing of tunnels is a common phenomenon in poor rock masses under high in situ stress conditions. The critical strain parameter is an indicator that allows the degree of squeezing potential to be quantified. It is defined as the strain level on the tunnel periphery beyond which instability and squeezing problems are likely to occur. If not anticipated, these could add huge time delays and surprise costs to the project—not to mention the threat of complete collapse if undetected. 

However, there are some highly effective systems designed to ameliorate these situations. Support systems like TH Profiles and Honeycomb Type Stress Controllers are the most popular, and we’re highly experienced in each Roof Support Systems.

Risk Faced

  • Sudden Collapses
  • Rock burst
  • Human Safety
  • Uncertain Rock Fall Due To Unconfined Strata
risk image
challenges image

Challenges

  • Thrust Zones
  • Shear Zones
  • In-situ Stresses
  • Seismicity
  • Sliding Rock Mass
  • Uncertain Rock Movements
  • Unconsolidated Rock Mass
  • Saturated Zones
  • Highly Weathered Rock Mass

Product Matrix

BUY this solution









Expert Spotlight

"Our underground experts like the fact that there’s nothing straightforward about building a tunnel."

"With respect to Quality, we have a no-nonsense approach.  We expect a job to be done right the first time. We feel that earning trust by doing what we say we’ll do is the only way to conduct business."

"We know that our focus on Partnering and insistence on teamwork pays off."

"Our open communication at the field activity level has been noted by all types of construction
personnel."

"Throughout our 10 years in this industry, GCPL has worked on many complicated, sophisticated,
and cutting edge projects. Each of those projects led us to find innovative solutions to unique
problems."

"We know that not all project requirements are black and white, and occasionally that “special” project will require a contractor to think outside the box."

sanjay quotes

Mr. Sanjay Aeron

Managing Director