If a new road or a drainage pipe is being added next to the street where you live, then some intricate and sophisticated techniques may be needed to excavate the area. Specifically, a technique called blasting may be required to create trench areas. When it comes to trenches, blasting is completed with the use of explosives. It can be extremely nerve-wracking for some people when they understand that explosives will go off near their homes. However, there are some precautions that will be taken to make sure that safety is always the primary concern of the excavation crew.
A Blast Plan Is Created
One of the first things that a professional excavator will do is create a blast plan. This plan is a written one that is fully inline and compliant with the regulations and requirements outlined by the Department of Transportation. The state will dictate the plan, but some United States Department of Transportation guidelines will need to be followed as well. In general, the plan will need to include the destination or area where the blasting will occur as well as the methods used to complete the blasting.
There will also be a health and safety requirements part of the plan that includes the type of signals that will be used. The signals are audible ones that tell others in the area that blasting will take place in the region. Individuals in the area will be informed that the blasting will occur in advance. This must be outlined in the plan too, and so does a list of machinery and gauges that will be used to keep track of the blasting and how it affects the surrounding area.
The safety plan even requires a full explanation of the model and manufacturer of the monitoring equipment as well as the records that indicate when the device was last serviced or maintained.
Test Blasting Will Occur
There are a variety of things that need to be done in an advance of blasting to make sure that rocks and debris do not become dangerous projectiles. The rock content of the area will need to be analyzed and so will the soil. This will help to determine the necessary strength of the explosives that are required to break up the rock while containing it at the same time.
To help contain the rocks, fabric or soil will need to be piled over the blast area. The correct material, as well as the depth of it, will need to be considered. Once these things are taken into account, test blasts will occur that are smaller controlled blasts. The vibrations, debris, the breakup of the rocks, and the gasses released from the ground will be looked at afterward. The type and number of the explosives, as well as the Ignitors and safety equipment, will be thoroughly examined from the original plan and changes will be made according to the data.