Create Earthwork Sites

Use the Create Earthworks Site command to geographically define borrow sites, processing sites and waste sites so they can be used in the mass haul analysis to balance the earthworks.

Prerequisites:

Licensed Module: See the Subscription Plans page. For a license matrix by command, see the License page in the TBC Community. Also see View and manage licensed features.
Haul roads that connect the earthworks sites to the corridor or site.
Borrow sites require material defined in the Material and Site Improvements manager.
Processing sites require a material process defined in the Material and Site Improvements manager.

To access the command:

Select Create Earthworks Site in Site Mass Haul > Earthwork.

To create an Earthworks site:

In the Site type box, select the type of earthworks site.
- Borrow Site - locations that provide additional fill material when there is a deficit in earthen material. Borrow sites are only considered in the mass haul analysis if they are connected to the Site or Corridor via a haul road.
- Waste Site - areas where unusable material and excess material is dumped to reduce the cost of the mass haul or to remove it from the job site.
- Processing Site - uses material that is cut from the natural surface or borrowed and converts it into fill or earthen select material. For example, a rock-crushing site. Processing sites are only considered in a corridor mass haul analysis.
In the Name box, type the name of the earthworks site as you want it to appear in the Earthworks node of the Project Explorer.
In the Layer list, select the layer on which you want the earthworks site to reside or select <<New Layer>> to create a new layer for the earthworks site.
In the Location box, type the coordinates of the earthworks site or click the in the plan view to define the location of the site.
Follow the steps below for the type of earthworks site you want to create.

For Waste sites:

In the Cost box type the cost per cubic unit of volume (in its compacted state) to dump material. The cost to dump different material at one waste site is the same.
In the Capacity box, type the volume of material (in its compacted state) that can be dumped at the waste site.
Click Apply.

For Borrow Sites:

Click Define Site Materials. In the Material column, select materials available at the borrow site. Materials currently defined in the Material and Site Improvement Manager are included in the material list. You can select multiple materials at a site.
Note: If material remains undefined at the borrow site, the Borrow material defined for the site mass haul or the Fill material defined for the corridor is used. If this material is also undefined then shrinkage and bulkage is not applied for the volume of undefined borrow material.
In the Volume column, type the volume of material (in its compacted state) available at the borrow site. All material at the borrow site is usable.
In the Cost column type the cost to borrow each material.
Click OK.
Click Apply.
Note: To edit materials at a borrow site, select a borrow site in the Plan view or Project explorer, right click and select Edit from the menu. Define the materials available, the usable compacted volume and the cost of the material.

For Processing Sites:

Also see Understanding Processing Sites and Workflow for Processing Materials.

To define the material processes occurring at the processing sites, click Define Site Material Processes. A list of material processes currently defined in the Material and Site Improvements Manager appears. Check the material processes occurring at the processing site. You can select multiple processes at a site.
In the Cost column type the cost per unit of volume.
In the Cost Unit column select the method required to compute the cost of the processing
- Cost of Usable Input - select this to compute processing costs based on the volume of material used as input at the processing site.
- Cost of Usable Output - select this to compute processing cost based on the volume of usable material created at the processing site.
  Note: If the processing site produces unusable material and the Cost Unit is set to Cost of Usable Output there will not be any cost associated with the unusable volume produced.
Click OK. The volume of the processed material produced depends on the volume required and the amount of raw materials available.
Note:
- To edit the material processes occurring at a processing site, select a processing site in the Plan view or Project Explorer, right click and select Edit from the menu.
-Material can be hauled directly from a borrow site to a processing site or from a processing site to a waste site.
To later edit the process material, cost, or cost unit for the material process site, click Define Site Material Processes again.

To change settings for connecting earthwork sites to haul roads:

Select Project Settings in the Quick Access Toolbar.
Expand the Computations group and select Mass Haul.
In the Connection Tolerance settings, enter the Site Connection Tolerance. This is the distance used to determine if an earthworks site connects to a haul road.

Dependencies:

Sites are only considered in the mass haul if they are connected to a corridor or job site via a haul road. The Site Connection Tolerance set in the project settings determines if a site is linked to a haul road.
The Haul Road Connection Tolerance in the project settings determines if haul roads connect to other haul roads.
The Active property determines if an earthworks site will be considered in the mass haul analysis.
The Respect Capacities setting in the properties of the corridor mass haul analysis determines if the capacity at an earthworks site is ignored.
The Use default borrow/waste settingin the properties of the corridor mass haul analysis determines if borrow and waste sites are created automatically at the start and end of the alignment. Borrow and waste sites created using the Create Earthworks Sites command are ignored if this setting is set to Yes.