Trench Rescue I presented by the… Office of the State Fire Marshall of Illinois

Course Content n Introduction n Trench Rescue Hazards n OSHA Regulations n Protective Systems n Shoring System Design n Rescue Shoring n Trench Rescue Operations

Rescue Shoring n Constructing a shoring system u Protect the installer F System must be constructed from top-down Exception-elements which can be installed without entering the trench (hydraulics)Exception-elements which can be installed without entering the trench (hydraulics) F Installer should remain as high in the protected area as possible Try to keep waist level with last level of protectionTry to keep waist level with last level of protection Use ropes, poles, etc. whenever possible instead of placing an installer in an unprotected areaUse ropes, poles, etc. whenever possible instead of placing an installer in an unprotected area F Whenever possible, the installer should install sets of crossbraces (one on either side) to maintain the greatest area of protection F Provide escape ladder(s) even prior to shoring

Rescue Shoring n Constructing a shoring system u Protect the installer F Construct system to specified design F Install elements reasonably straight Maximum of 15 degrees of errorMaximum of 15 degrees of error F Fill any voilds so pressure will be transmitted to trench walls F Check integrity of struts frequently u Build the system according to good design principles

No arch effect with a void space Filling the void space allows the arch effect to be restored

Construction Shoring Rescue Shoring

300 ‘

Cold Zone Warm Zone Hot Zone Incident Command Non-Rescue Personnel General Staging Rescue Staging Resources Active rescue personnel Rescue Officer Rescue Safety Officer