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Barriers: Overview
A "barrier" is a line segment (with one end on the slope surface) that can be placed anywhere along the surface of the slope in order to stop falling rocks or absorb some of their energy as they travel down the slope. The number of barriers users can place on a RocFall slope is not restricted. Barriers, however, cannot cross other barriers and cannot cross slope segments.
You can add any number of user-defined barriers (dark green line segments) at any angle or location on slope
Add Barrier option under Barriers menu
Barriers can be added graphically or by entering exact coordinates in the prompt line.
Adding a barrier by entering coordinates in the prompt line
Barrier properties can be modified with the Barrier Editor dialog
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Barriers: Response of Barriers
Barrier properties can be modified with the Barrier Editor dialog. By changing the barrier from "perfectly inelastic" to "perfectly elastic" changes the response of barriers to rock impact.
Barrier Editor dialog
Response of barrier to rock impact when the barrier is perfectly inelastic (rocks stick to the barrier, Rn = Rt = 0.0)
Response of barrier to rock impact when the barrier is perfectly elastic (rocks bounce off the barrier, Rn = Rt = 1.0)
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Barriers: Breakable Barriers
Barriers in RocFall can be assigned a capacity in terms of the energy required to break through the barrier. Any rocks that contact the barrier with a kinetic energy exceeding the barrier capacity will pass through the barrier, with a reduced velocity.
Enter a value for capacity in the Barrier Editor Dialog
Rocks with kinetic energy exceeding the barrier capacity pass through the barrier
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