Theoretical relation between water flow rate in a vertical fracture and rock temperature in the surrounding massif

Physics – Geophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

A steady-state analytical solution is given describing the temperature distribution in a homogeneous massif perturbed by cold water flow through a discrete vertical fracture. A relation is derived to express the flow rate in the fracture as a function of the temperature measured in the surrounding rock. These mathematical results can be useful for tunnel drilling as it approaches a vertical cold water bearing structure that induces a thermal anomaly in the surrounding massif. During the tunnel drilling, by monitoring this anomaly along the tunnel axis one can quantify the flow rate in the discontinuity ahead before intersecting the fracture. The cases of the Simplon, Mont Blanc and Gotthard tunnels (Alps) are handled with this approach which shows very good agreement between observed temperatures and the theoretical trend. The flow rates before drilling of the tunnel predicted with the theoretical solution are similar in the Mont Blanc and Simplon cases, as well as the flow rates observed during the drilling. However, the absence of information on hydraulic gradients (before and during drilling) and on fracture specific storage prevents direct predictions of discharge rates in the tunnel.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Theoretical relation between water flow rate in a vertical fracture and rock temperature in the surrounding massif does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Theoretical relation between water flow rate in a vertical fracture and rock temperature in the surrounding massif, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theoretical relation between water flow rate in a vertical fracture and rock temperature in the surrounding massif will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-324103

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.