METHOD FOR AUTOMATIC GENERATION OF A DRILL PATTERN

PROCEDE PERMETTANT DE GENERER AUTOMATIQUEMENT UN PLAN DE TIRS DE FORAGE

English Abstract

Method for automatic generation of a drill pattern for drilling and blasting
of a predetermined rock volume. According to the method rules for distance
between drill holes and direction for drill holes are loaded into a control
system on a rock drilling rig (1). The feed beam position of the rock drilling
rig is shown on a screen (3).The operator marks the drill front limitation
through pointing out these with the feed beam (2).After that depthof the round
and the rear surface of the round are stored in the control system. With rules
and limitations of the round stored in the control system the drill pattern is
generated by automatic calculation.

French Abstract

La présente invention concerne un procédé permettant de générer automatiquement un plan de tirs de forage en vue de forer et de faire exploser un volume de roche prédéterminé. Selon ce procédé, on charge des règles de distances à respecter entre des trous de forage et de direction des trous de forage dans un système de commande placé sur le dispositif (1) de forage de roche. La position du levier de battage du dispositif de forage de roche est montrée sur un écran (3). L'opérateur marque la limite avant du forage en pointant cette dernière avec le levier de battage (2). Ensuite, on stocke la profondeur et la surface arrière de l'enlevure dans le système de commande. Avec les règles et les limites de l'enlevure stockées dans le système de commande, le plan de tirs de forage est généré par un calcul automatique.

Claims

3

CLAIMS:


1. A method for automatic generation of a drill
pattern for drilling and blasting of a predetermined rock
volume with a rock drilling rig provided with at least one
feed beam, the method comprising:

loading rules for distance between bore holes and
direction for bore holes created in a planning process into
a control system on the rock drilling rig;

showing feed beam position on a screen on the rock
drilling rig;

moving the feed beam to desired positions to point
out or adjust the drill front limitations;

storing the pointed out or adjusted positions in
the control system of the rock drilling rig;

giving a depth of a round in the control system;
giving a desired location for a rear surface of
the round in the control system; and

generating a drill pattern containing positions
and directions for a plurality of holes through automatic
calculation from the stored rules and indicated limitations
of the round.


2. A rock drilling rig comprising:

a feed beam, moveable to desired positions to
point out or adjust limitations of a drill front;

a screen associated with a control system having
means for showing the position of the feed beam on the
screen;



4

the control system having

means for receiving and storing

rules for distance between bore holes and
direction for bore holes created in a planning process;
pointed out or adjusted positions;

a depth of a round;

a desired location for a rear surface of the
round;

means for automatic calculation of positions and
directions of the holes of the round outgoing from the
information stored by said receiving and storing means.

Description

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Method for automatic generation of a drill pattern

The present invention relates to a method for
automatic generation of a drill pattern for drilling and
blasting of a predetermined rock volume with a rock drilling
rig with at least one feed beam.

In a previously known method the drill pattern is
calculated in a planning process separated from the rock
drilling rig. After that the position of the individual
drill holes are given to the driller who after that aligns
the rock drilling machines for drilling. Alternatively data
for the individual drill holes can be stored in a control
system for subsequent drilling.

According to one broad aspect of the present
invention, there is provided a method for automatic
generation of a drill pattern for drilling and blasting of a
predetermined rock volume with a rock drilling rig provided
with at least one feed beam, the method comprising: loading
rules for distance between bore holes and direction for bore
holes created in a planning process into a control system on
the rock drilling rig; showing feed beam position on a
screen on the rock drilling rig; moving the feed beam to
desired positions to point out or adjust the drill front
limitations; storing the pointed out or adjusted positions
in the control system of the rock drilling rig; giving a
depth of a round in the control system; giving a desired
location for a rear surface of the round in the control
system; and generating a drill pattern containing positions
and directions for a plurality of holes through automatic
calculation from the stored rules and indicated limitations
of the round.

According to another broad aspect of the present
invention, there is provided a rock drilling rig comprising:


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a feed beam, moveable to desired positions to point out or
adjust limitations of a drill front; a screen associated
with a control system having means for showing the position
of the feed beam on the screen; the control system having
means for receiving and storing rules for distance between
bore holes and direction for bore holes created in a
planning process; pointed out or adjusted positions; a depth
of a round; a desired location for a rear surface of the
round; means for automatic calculation of positions and
directions of the holes of the round outgoing from the
information stored by said receiving and storing means.


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lb
The present invention. aims at automatically; -
generating a drill pattern outgoing from rules for placement of drill holes
and direction of
drill holes and interactive indication of the limits for a whole round. One
advantage with
this method is that one does not have to handle data for the individual drill
holes.

An embodiment of the invention is described below with reference to the
accompanying
drawing in which fig 1 shows a stylized rock drilling rig and a tunnel front
on a screen. Fig
2 shows a generated drill pattern on the screen.

At generation of the drill pattern one starts from rules for placement of
drill holes relative
to each other within a group of holes, distance to other hole groups and
different look-out
angles to be used for the different hole groups. These rules are created in a
planning
process outside the rock drilling rig 1. These rules are loaded into the
control system of the
rock drilling rig 1. It can also occur that a planned volume for drilling and
blasting is
transferred to the rock drilling rig 1. On the screen 3 of the rock drilling
rig 1 a schematised
picture of the rock drilling rig I is shown with drill booms provided with
feed beams 2 for
rock drilling machines marked. On screen 3 a rock volume 4 is shown both from
above and
from the front. By moving the feed beams 2 the driller points out the
different comers on
the drill front 5 and stores these values in the memory of the control system.
Through this
the limits of the drill front have been pointed out and adjusted. After this
the depth of the
round to be dulled and blasted is given. Then it is indicated how the rear
surface of the


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round is to be adjusted relative to the drill front. When this has been done
the control
system of the rock drilling rig contains information about the limits in the
room of the
round and the rules for the placement of the drill holes including the
direction for the
drilling. Outgoing from this information the drill pattern is automatically
generated through
automatic calculation outgoing from the stored rules and the limitations of
the round. In fig
2 the completed drill pattern is shown. If the coordinate system of the rock
drilling rig
before generation of the drill pattern was connected to the coordinate system
of the rock
body the connection is kept, if not automatic connection of the coordinate
systems occurs
outgoing from the corners of the round pointed out.

Representative Drawing