Engineering and Scientific Research at WES, October 1973.
Abstract
The mounding technique is an approach to blasting intermediate in concept between conventional blasting and cratering. A production blast in conventional blasting is composed of a large number of relatively small-diameter blast holes, whereas in cratering a few very large explosive charges are detonated below the ground surface. A cratering blast breaks the overlying rock and also ejects it to form a crater. The mounding concept uses a few relatively large charges, similar to cratering charges, but the charges are buried so deeply that the rock is not ejected, but only forms a mound of rubble. The rubble is then removed by conventional hauling methods. The concept of using mounding charges to excavate rock is being studied because it may offer significant savings in drilling and blasting costs in comparison with conventional blasting.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1973
- Accession Number
- ADA044361