... with horizontal holes . . . . . . . . . . . . 354 ( b ) Blasting with vertical holes . . . . . . . . . . . . . 355 Typical sites . . . . T h e Clisposal of coal from Quality Screens o.f op.enc.ast.ooa.l op.enc.mt.site.s .. .. .. .. .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . 356 . 357 *361...

... they exweritll be towards a free or open face, and thedistance from the charge to thefree face, measured opposite the charge, is termed the burden. The meaning of the depth and spacing between charges is self-evident. Table I shows averageburdens and spacings, correlated withdepth and diameter of shot-holes...

...F C LEA; J G WHITMAN © Thomas Telford and ICE 1937 FAILURES GIRDERS REPEATED STRESS TESTING MACHINERY TESTS METHODS MILD STEEL FRACTURE TENSILE SPECIMENS JOISTS BENDING FATIGUE RIVETS HOLES FLANGES STATIC CHROMADOR WELDED SAFETY FACTORS ROLLED BEARINGS AMPLITUDE...

... DRILLING HOLES CONSTRUCTION FAILURES FOUNDATIONS WATERLOO THAMES LONDON UK 472 BUCKTON AND FEREDAY ON The following Paper was submitted for discussion, and, on the motion of the President, the thanksof The Institution were accorded to the Authors. Paper No. 5072. The Demolition...