[1.20.4] Custom Mineshaft dungeon, Railways drops from the drive way

Good days
im working on this Costume underground dungeon the plan is creating a mineshaft tunel whit fully functional railway and rail switchs going deep down into the ground 

 

My hypothesis its than than the rails get created before the supporting stone blocks 
 i was setting blocks whit  Level.setBlock(pos,blkstate,2)  in mode 2 i change it to 10 but the problem persist 

in the doorblock class it uses 3 as flag  

level.setBlock(p_52750_.above(), p_52751_.setValue(HALF, DoubleBlockHalf.UPPER), 3);

i set 3 as flag the problem continues (i du not know what 3 means)

this numbers are basically a mistery
===> i need the number mode to set a block into the world whithout doing any checks or triggering neighbors blocks 

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The nbt class has an Enum to make more redable the code 
is in "import net.minecraft.nbt.Tag;"

nbtpos = entitydata.getList("blockPos", Tag.TAG_INT);// blockdata contains pos;

if theres something like this for the setBlockMode that would be nice