Complete the underground layout design in the file layout330.str a Crosscuts are missing so you’ll need to add them.

i. From the Navigator, click and drag the file layout330.str into the viewport to open it.

ii. First display the point markers so you can see where the crosscut centrelines are to be placed. From the tool bar choose the button to display the point markers.

iii. Apply the subsequent form:

iv. Now, change the snap mode from “No Snap” to “Point”. To do this go the Snap Mode selection box in the toolbar:

Snap mode selection box

v. From the Edit menu, choose Segment, Copy.

vi. A prompting message will appear asking you to “Select and drag the segment to be copied.”

vii. Select one of the two existing cross cuts. When selecting in Surpac, it is important to know that your selection will be based on proximity of the cursor to the items you’re selecting. In this case you will want to select the south-eastern most point on the cross cut centreline:

viii. While holding down the left mouse button, drag the selected segment to one of the other point markers then let go.

ix. Fill the subsequent form as follows:

x. The result should be as in the following diagram. Notice that the prompting text reappears for you to keep selecting.

ii. With Snap Mode set to “Point” (see step 6.I.d.), choose from the

Edit menu, Point, Move.

iii. Select the first point in the ramp, and drag it to a point on the 290 level floor, as in the following diagram:

Drag to this point on 290 level

Click the first ramp point

iv. Now you must regrade the entire ramp centreline. From the Edit menu, choose Segment, Change gradient.

v. A prompting message will appear asking you to “Select the centreline start point”. Choose the point moved in step c.

vi. A prompting message will appear asking you to “Select the centreline end point”. Choose the last point in the ramp where it connects to the haulage drift centreline as in the following diagram:

“Select the centreline

end point” _{“Select the}

centreline start point”

vii. Apply the subsequent form:

c. Create an outline of the entire layout 10m wide.

i. Make sure the layer where the layout centrelines reside is currently active. Check the layer chooser in the first toolbar to make sure the layer in which your pit resides is the active layer:

Layer chooser

ii. From the Mine Design menu, choose Underground, Room & pillar

from centrelines.

iii. Fill the subsequent form as follows:

d. Copy the floor outline up 10m to the back

i. From the Edit menu, choose Copy segment constrained by,

Bearing & distance.

ii. A prompting message will appear asking you to “Select the segment to copy by bearing, dip, and distance.

iii. Select the newly created outer wall of the layout.

iv. Fill the subsequent form as follows:

e. Construct a solid from the floor and back outlines.

i. From the Solids menu, choose Triangulate, Between segments.

iii. A prompting message will appear asking you to “Select a point on the first segment to be triangulated”.

iv. Select a point on the outer wall segment of the floor.

v. A prompting message will appear asking you to “Select a point on the next segment to be triangulated”.

vi. Select a point on the outer wall segment of the back.

vii. From the Solids menu, choose Triangulate, Inside a segment.

viii. Click the button to save the solid.

ix. Fill the subsequent form as follows:

xiv. Select a point on the outer wall segment of the back.

f. Design 2 other access ramps from different levels of the mine and construct solids of them:

i. From 180 level to the SW end of the design.

a. From the Mine Design menu, choose Underground, Generate

shortest path.

b. A prompting message will appear asking you to “Select the start

point”.

c. Choose the indicated point in the following diagram on the 180

level.

d. A prompting message will appear asking you to “Select the goal

point”.

e. Choose the indicated point in the following diagram on the

Start point Goal point

g. From the Solids menu, choose Triangulate, Using centreline &

profile.

h. Fill the subsequent form as follows:

i. A prompting message will appear asking you to “Select the centreline string”. Select the ramp string.

ii. From 150 level to the NE end of the design.

a. From the Mine Design menu, choose Underground, Generate

shortest path.

b. A prompting message will appear asking you to “Select the start

point”.

c. Choose the indicated point in the following diagram on the 150

d. A prompting message will appear asking you to “Select the goal

point”.

e. Choose the indicated point in the following diagram on the

design.

Goal point

Start point

f. Fill the subsequent form as follows:

g. Fill the subsequent form as follows:

h. From the Solids menu, choose Triangulate, Using centreline &

profile.

j. A prompting message will appear asking you to “Select the centreline string”. Select the ramp string.