Laying bricks on an arch requires careful planning and precision to achieve the desired shape and structural integrity. Here's a general process for laying bricks on an arch:

1. **Design the arch**: Determine the size, shape, and design of the arch based on the architectural plans and specifications for the project. Consider factors such as the radius of the arch, the number of bricks required, and any decorative elements.

2. **Prepare the formwork**: Construct a temporary formwork or template to support the bricks and maintain the desired curvature of the arch during construction. The formwork should be designed to match the shape and dimensions of the arch and provide a stable base for laying the bricks.

3. **Cut bricks to fit**: Use a brick saw or chisel to cut bricks to the appropriate size and shape for the arch. Bricks may need to be cut at an angle or tapered to fit the curvature of the arch.

4. **Prepare mortar**: Mix mortar to the desired consistency, following the manufacturer's instructions. Mortar should be workable but not too wet, with good adhesive properties for bonding the bricks together.

5. **Lay the first course**: Start by laying the first course of bricks along the bottom of the arch, positioning them in a bed of mortar and pressing them firmly into place. Use a level and string line to ensure that the bricks are laid evenly and at the correct height.

6. **Gradually build up the arch**: Continue laying courses of bricks, gradually building up the curvature of the arch as you work. Use smaller, tapered bricks or cut bricks as needed to maintain the shape of the arch and close any gaps between bricks.

7. **Install support bricks**: As you progress with laying the bricks, install temporary support bricks or wedges beneath the arch to prevent it from collapsing under its own weight. These supports can be removed once the mortar has set and the arch is self-supporting.

8. **Check for alignment and level**: Regularly check the alignment, level, and curvature of the arch as you lay bricks to ensure that it is symmetrical and structurally sound. Make any necessary adjustments to the position of the bricks or the curvature of the arch as needed.

9. **Allow mortar to cure**: Allow the mortar to cure for the recommended time before removing any temporary supports or formwork. Once the mortar has set, the arch should be self-supporting and structurally stable.

By following these steps and paying close attention to detail, you can successfully lay bricks on an arch and create a visually striking architectural feature for your project.