<< Click to Display Table of Contents >> Navigation:  User Manual > Truck & Shovel Simulation > Setting up a Truck Shovel Simulation > Assigning Roads and Accesses to Subsequences > Preparation for Assigning Roads

 

Prior to commencing the process of assigning Roads to Subsequences a set of Roads must be created capable of representing the  Complete Haul Road for every Subsequence/Dump combination in the Supersequence.

Once the road network is complete the following information is required for every Subsequence/Dump combination:

1.The parameters to be used for the Excavation Manifolds.

2.The Excavation Access Road.

3.The Main Haul Road.

4.The Dump Access Road.

5.The parameters to be used for the Dump Manifolds.

 

1 and 5 (Manifold parameters) do not generally vary with particular Subsequences and Dumps. Hence default settings can be established and automatically applied to every Subsequence

Frequently many Subsequences will share common Excavation Access and Main Haul Roads, with Dump Access changing depending on the dump to which the waste material is reporting. In such cases the  the Subsequences can be group selected and the common road elements applied, the Dump Accesses can then be individually applied to Subsequences.

In order to ensure that the process of Road assignment is quick and reliable the following principles should be applied:

 

Naming conventions. For any given Subsequence it is important that the appropriate Excavation Access Roads can be quickly identified. By adopting a common naming convention across Excavation Templates, Subsequences and Excavation Access Roads this requirement is easily met. The appropriate naming convention will vary depending on the mine layout. Generally however the names of all these three elements should indicate the following:

1.Pit

2.Strip

3.Pass

4.Region or location

 

Subsequences will generally include the first three as a matter of course. In addition Subsequences should also include there Block range and this will indicate the location (e.g. the end of the Strip is located)

Excavation Access Road names will generally reflect the Strip and Location (e.g. Strip 5 North high wall ramp)

Main All Roads  usually represent an existing road in the pit and the name will generally be adapted from this.

Dump Access Roads are typically named after the dump they service, if a dump has more than one access ramp then the Access Roads are generally named after the dump plus location.

The interface for assigning roads displays Subsequences and their Dump  hierarchies to the user during Road Assignment. If an appropriate naming convention has been used it should be obvious by inspection of the Subsequence and Dump names which road elements should be assigned.

Subsequence grouping. Frequently many Subsequences share the same Dump Hierarchy. In such cases it is usually the case that they will also share a common set of Road Components. Recognising this and group selecting Subsequences for road assignment can greatly reduce the time required to assign roads.