1. Install a border, to prevent the bricks from walking. 2. Once the tension in the cord exceeds the frictional force preventing the brick from sliding along the table, the brick slips. 3. Put a border around the patio to prevent the bricks from spreading out. 4. The main library is covered in plastic to prevent bricks from falling on pedestrians. 5. These items as a border will look good and do a better job at preventing the bricks from spreading than steel edging. 6. To prevent uneven bricks, stretch a taut string along the length of the patio from border to border, at the level of the tops of the bricks. 7. A building near the historic district Pioneer Square was enclosed with scaffolding to prevent bricks from falling on passers-by. 8. The commission was told that the company had been warned a month before the accident that brick guards should be used to prevent the bricks from falling. |