Final answer:
Adequate stemming in wet conditions where slurry or emulsion is used requires waterproof materials, tight packing, and time for the material to settle. It's also important to adjust blast design to ensure proper containment and prevent issues like blockages and flooding resulting from debris flows.
Step-by-step explanation:
When loading a hole that is extremely wet to the point where slurry or emulsion is required, specific precautions are necessary to ensure that adequate stemming is achieved. These precautions include using waterproof stemming materials, ensuring that the slurry or emulsion is packed tightly to prevent water infiltration, and providing ample time for the slurry or emulsion to settle and harden before initiating the blast. Additionally, careful examination and adjustment of the blast design may be needed to account for the wet conditions and the type of materials used for stemming.
In environments where slope material can become saturated, leading to debris or mud flows, it's crucial to recognize the additional challenges presented by such conditions. Debris flows can carry significant loads including trees and structures, potentially leading to blockages and flooding. Comprehending these dangers emphasizes the importance of proper load and stemming practices to ensure safety and effectiveness in wet blasting scenarios.