Mine collapse with support in place..

[tweenprinc3ss]

Was doing some mining, when I saw some dust start falling from ceiling. I then immediately threw up a support right next to that spot, but the place still caved in. Do you have to place the support exactly under where the dust is falling??? Or once you dust is it too late?

[Judaism]

Do you have to place the support exactly under where the dust is falling?

Yes.

[tweenprinc3ss]

Thanks.

[tweenprinc3ss]

So, does building a support before the dust is falling, secure the area of influence the support offers?

[alloin]

So, does building a support before the dust is falling, secure the area of influence the support offers?

yes