Stuck core Bit in concrete 3

[BECT]

Hello,

We were in the process of coring 64mm dia. hole for Williams anchors. Our core bit stuck when it was 57" into the concrete. I am planning to do additional 75mm hole on top of it and take this core bit out and then grout it back . Once the grout is set , I will drill hole again 64mm hole. Has anybody encountered similar problem.

Another idea is to put pipe in the bit and weld all around and then pull it with jack.

see attached picture. Let me know your thoughts

Thanks

 

[BECT]

Ingenuity,

I am installing 11m high steel tower on the spillway piers of the Dam in Ontario. Yes you are correct these are William spin lock anchors to be installed in 10 ft thick pier. we have 4 towers on 4 piers. these towers will support the bridge at the top and the bridge is supporting the hoist to lift my vertical gates from the spillway sluice. I will send you the pic of the installed tower when my crew is done with that.

Regards

 

[Ingenuity]

I will send you the pic of the installed tower when my crew is done with that.

Excellent. We all like to see photographs of real construction stuff here.

 

[Rabbit12]

BECT thanks for coming back and following up. I know I appreciate it.