A METHOD OF CONSTRUCTING INTROJECTED BACKFILLS

摘要

A support mechanism ABCD of height "h" is constructed when the back of this support is filled with backfills and densified to a level BB1. An introjection EE1B1B2 is constructed on the top of level BB1. Next support mechanism FGBA is then constructed for a height "h1" and backfilling is done on the top of introjection EE1B1B2 and densified to a level of GG1. On top of GG1, another introjection II1G1G2 is constructed. Then the support mechanism JKGF is built for a height of h2 and backfilling of the support JKGF at its back and on top of II1G1G2 is done and finally densified this backfill to a level KL so that the complete support system JKCD is constructed for a complete backfill height H with predetermined number of introjections.