Split with Surfaces
Use the Split: Surfaces tool to split surfaces and solids using surfaces.
- 
                From the Geometry ribbon, click the  tool.
                
Figure 1. 
 - Select Surfaces or Solids from the Target selector on the guide bar.
 - Select geometry.
 - Optional: 
                On the guide bar, click 
 to define split
                    options.
             - On the guide bar, select Surfaces.
 - In the modeling window, select the surface(s) used to split.
 - Optional: 
                Review the split sections.
                Restriction: Only available when splitting solids.
 - Click Split on the guide bar.
 
