Excavation bucket with internal material expulsion device and related method

An apparatus for use with an excavation machine to move ground material, the apparatus comprising:

• a bucket configured for mounting on the excavation machine and to collect ground material, wherein the bucket comprises:
• laterally spaced-apart sidewalls,
• a peripheral wall spanning laterally between the sidewalls and extending from a top to a bottom of the peripheral wall along a path from a top of the bucket to a rear thereof and then to a bottom of the bucket,
• wherein the sidewalls and peripheral wall collectively delimit an interior of the bucket for containing ground material and a front opening configured to enable passage of the ground material into the bucket, and
• a rear opening in the peripheral wall opposite to the front opening and configured to enable passage of the ground material, which is in the bucket, out therefrom;
• a material expulsion device in the bucket and configured to discharge the collected ground material through the rear opening of the bucket;
• and
• an external deflection member attached to the bucket at or adjacent the rear opening and configured to direct the discharged ground material.