Chapter 4-PREVENTIVE AND CORRECTIVE DAMAGE CONTROL 



follow is this: in case of doubt, it is always 

 better to shore than to gamble on the strength 

 of an important deck, bulkhead, hatch, or other 

 member. 



Some examples of shoring are illustrated in 

 figure 4-7. 



RESTORATION OF 

 VITAL SERVICES 



Thus far we have considered practical dam- 

 age control operations from the point of view of 

 combatting fires, getting rid of flooding water. 



STRONGBflCK 



THIS IS THE SIMPLEST AND 

 STRONGEST SHORING STRUG 

 TURE. 



THE BASIC STRUCTURE IS ^ 



REPEATED AS OFTEN AS NECESSARY. 



THE USUAL METHOD OF IN- 

 STALLING SHORES IS BY A 

 TRIANGULATION SYSTEM. 



THIS IS BAD 



THIS SHORE IS UNDER 



CROSS-AXIAL PRESSURE 



AND MAY SNAP! 



WHEN OBSTRUCTIONS PREVENT USE 

 OF THE TRIANGULATION SYSTEM 

 THIS METHOD MAY BE USED. 



OBSTRUCTION 



ADDITIONAL STRENGTH IS AFFORDED BY SHORES B 



AND C. HORIZONTAL SHORE B IS SUPPORTED BY d" 



AND A, AND IS BRACED AGAINST A UNIT OF MACHINERY BY 



MEANS OF E. 



17.10 



Figure 4-7. — Examples of shoring. 

 73 



