أرسل هذا في رسالة قصيرة: PREDICTION OF CONVERGENCE VALUES IN SHALLOW TUNNELS WITH VARIOUS SUPPORT SYSTEMS FOR VERY GOOD ROCK MASS CLASS (RMR= 80 - 100)

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 `____ `  | || | ||  |  ' ||  / //\ \\  `____ `  
 /___//   | \\_/ ||  | .  || |  ___  || /___//   
 `__ `     \____//   |_|\_|| |_||  |_|| `__ `    
 /_//       `---`    `-` -`  `-`   `-`  /_//     
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