Method and device for determining a previous state of stress...

E - Fixed Constructions – 21 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

E21C 39/00 (2006.01) E21D 9/00 (2006.01) E21F 17/18 (2006.01)

Patent

CA 2369020

The invention relates to a method for determining a previous state of stress in the area of a mountain range or soil. Said method comprises the following steps: applying a reference bit for a radial position, excavating a tunnel section, introducing a radially effective support in the area of the reference bit, determining the force acting upon said support and/or determining the dimensions of the support, and determining the previous state of stress using the detected force and/or dimensions of the support. The method for determining parts of a line that is characteristic of a mountain range comprises the following steps: introducing gradually variable, radially effective safety devices, allowing the support introduced to be deformed by geometrical changes, determining the force acting upon said support and determining the course and/or a parameter of the line characteristic of the mountain range on the basis of the detected force and/or the changed dimensions of the support. The values obtained are used in tunneling methods and systems.

L'invention concerne un procédé permettant de déterminer un état antérieur de contrainte dans la zone d'un massif montagneux ou d'un sol, qui comprend les étapes suivantes : appliquer un repère pour une position radiale, dégager une section du tunnel, introduire un étai à action radiale dans la zone du repère, détecter les forces exercées sur l'étai et/ou les dimensions dudit étai et déterminer l'état antérieur de contrainte sur la base de la force et/ou des dimensions détectées. L'invention concerne également un procédé permettant de déterminer la courbe caractéristique d'un massif montagneux, qui comprend les étapes suivantes : introduire des systèmes de sécurité à action radiale à variation progressive, permettre à l'étai introduit de se déformer sous l'effet des changements géométriques de l'étai introduit, détecter la force s'exerçant alors sur l'étai et déterminer une courbe et/ou un paramètre de la courbe caractéristique du massif montagneux sur la base de la force détectée et/ou de la modification des dimensions de l'étai. Les valeurs obtenues s'utilisent dans des procédés et des systèmes de construction de tunnels.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Method and device for determining a previous state of stress... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and device for determining a previous state of stress..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for determining a previous state of stress... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2053889

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