Describir: Soil mechanics, foundations and earth structures :

 _    _     _____     _____    _    _    _    _     ______   _____    
| || | ||  |  ___||  / ____|| | || | || | |  | ||  /_   _// |  __ \\  
| || | ||  | ||__   / //---`' | || | || | |/\| ||   -| ||-  | |  \ || 
| \\_/ ||  | ||__   \ \\___   | \\_/ || |  /\  ||   _| ||_  | |__/ || 
 \____//   |_____||  \_____||  \____//  |_// \_||  /_____// |_____//  
  `---`    `-----`    `----`    `---`   `-`   `-`  `-----`   -----`   
                                                                      
   ___    
  / _ \\  
 | / \ || 
 | \_/ || 
  \___//  
  `---`