Transcript Building Waste Dumps in MineSight

Building Waste Dumps in
MineSight
©Mar 2008 Dr. B. C. Paul
Note – These slides contain screen shots and demonstrate procedures for the
program MineSight by Mintec Inc. Similar procedure outlines can be found in
some Mintec course material or presentations.
I’m going to build a waste dump in
this canyon area
To Do This I Will Do the Following
• I will create an edit grid so I can put in
horizontal planer surfaces
• I will create a polygon (close pline) at the
top surface of the proposed dump
• I will use the extrude-expand tool to
project the slope down from the polygon
• I will clip my extruded polygon with the
surface intersect tool and make it a part of
my new surface
In the Data Manager Create a New
Grid Set
Name that Grid Set and Click Ok
Set the Grid Set for Plan View and
Accept Defaults Based on Our Project
Area
I Can’t See Anything so I am going
to close my new grid set
I can still
Attach it to the
viewer
I’m Going to Explore for Where I
Want My Dump Top
I turned off the
Surface view so
I could see just
My contours
Then I querried
The contour line
I was interested in
To get its elevation
Now I Will Attach a Grid Set to My
Viewer
First I click on the
Green box to
Attach the
Gridset
It then asks me
Which gridset
I left click to
Highlight my
Choice and
Click ok.
Now I Pick My Chosen Elevation
from the Gridsets
Click on the
Little blue
Lined chart
Up Comes Your Choice of Planes
(Left Click to Highlight Your Favorite)
Now I Will Set Up the Place to
Store My Dump
For my
Organizational
Plan I will create
A folder that will
Have my dump
Stuff in it
(You might
Choose to
Organize
Differently)
I’m Naming My Dump Folder
Next I Will Create My Dump Object
I Will Name My Initial Dump Object
I Will Then Put it into Edit Mode
(So I can put my initial dumps shape into it)
I am about to enter the points around
the edge of the dump surface
I will tell the
Computer to
Snap my points
To the plane
Of the edit
grid
I Will Now Start Creating a Polygon for
the top level surface of my dump
Click to Trace Out the Polygon
(That will represent the top level surface of my
dump)
Note that my
Polygon extends
Beyond the
Topography
(That’s ok
Because I’m
Going to cut
The surface
Anyway)
For My Organization I Will Create A Dump
Slope Geometry Object and Put it in Edit
Mode
Now We Will Select This Polyline to
extrude into a dump shape
Left Click My Line to Pick Right
Click to Finish
Note the line is
A pretty red
color
Now Pick Polyline Extrude
Oh what a
Mystery – you
Have to pick
A line to make
Extrude active
But then it asks
You to pick it
Again.
Start Working With the Extrude
Window
We will give it a
Slope and distance
To expand
(select this option
From the pull-down
Menu)
Set the Dip Direction in Which to
Expand (ie- straight down)
Note the arrow
Pointing the
Direction of the
Perspective
expansion
Set The Slope
I chose to enter
My slope as
A ratio
In this case 3
Units over for
Every unit down
Tell it I Want to Create A Dump
Surface
Extrude will
Create a
Second polyline
250 meters
Lower and out
750 meters –
I will create a
Slope surface
By connecting
Those lines
I also want it
To create a
Top surface for
Me.
Now I Will Preview My Dump
I’ll Look Around and Admire My
Handiwork
Ok – enough
AdmirationClick apply
The Task Completes
I Like This View a Little Better
I turned topo off
The surface
On
Made my dump
Solid instead of
Triangles
And set the
Dump color to
Blue
(no you don’t
Have to copy my
Picture)
Actually I don’t think we’d fill in a couple of places
So I would probably go back and adjust my
Dump lines – if I were doing a design
Next I Would Like to Get the
Volume of My Waste Dump
• So I can see how much capacity I have at
a given time
The Following is a Temporary
procedure until a Minesight Surface
Problem is Solved
• Create an object to store contour lines for your
dump surface
• Have Minesight create contours for your dump
surface
• Have only the following layers on
– The topo lines of your pre-dump surface
– The topo lines for your dump
• Link a horizontal edit grid to your viewer
– (you did it before in this procedure)
– Set volume clipping so that you only see the contours
for one elevation at a time
Continuing the Temporary
Procedure
• Create an object for intersecting layers
• Create a polygon on each elevation
tracing around the dump contour back to
the original land contour
– Obtain the area of the polygon (Query should
do this once you have a close polygon)
Dump contour
Trace a polygon
In here
Original topo
Continuing the Temporary
Procedure
• You will have polygon areas for multiple
elevations (every 20 meters)
– Where the dump goes below the old surface
obviously you will have no polygon
• Take each polygon area and multiply the area by
20 meters to get a volume in cubic meters
• Add the volumes up for the total volume
• The technique just described is called average
end area
• (Minesight will do this automatically with one
command once the surfaces problem is solved)
I’m Going to Create An Object for
my new Surface with the dump
Fire Up My Intersect Surfaces Tool
I Will Select Surfaces to Intersect
I can select either
By picking in the
Viewer
On by picking from
A menu
The little blue
“worm” is the
Window pick –
Click it
Then click on my
General surface
Then right click
To complete my
selection
Now I Will Select the Dump as my
secondary surface in the same way