John Cooper. One mix of cement taken in, 2 buckets. Continued on supporting the boulder on the right-hand side. Will need lots more, as well as the wall on the left-hand side. Just finishing off as the next team arrived. 2 hours. John.
Mike Moxon, Adrian Miles and Trevor Hughes joined John (mortaring up the right hand side at the end). Adrian drilled 3 long holes - Kushy’s red dots - which, with 40g, will suffice to demolish the boulder and these were capped with tagged spiles to keep out debris. Mike and Trevor built a rock retaining wall back up passage, below the link to the higher passages, to store future spoil. As John said on site, a lot more pointing up needs to be done before the next charges can be fired. Of note: one of the shot holes penetrated right through the boulder, the other two not so. It will be an easy removal in due course. 1 1/2 hours for us. Trevor.
Yellow -draught, Red - next holes, Green - cement. Photo MK. |
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