2024-12-16_REVISION - M1977410 (9)

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Appendix E-1 Figure 2 Beam Min . section Beam sections having Built up sections span modulus(in') 12"min. flange ,vidth and Cont. (ft) min. section modulus ,velds 10 67.5 HP 12x63 Cl5x33.9onup HP 12x74 MC 12 x 37 on up HP 12x84 W 8 x40 onup i'..11 HP 13 & HP14 W 10x33onup W 12 x 65 onup W 12 x26onup W 14x 90onup 11 79.2 HP 12x63 C 15 x 3-3.9 on up HP 12x74 MC 12 x 40 on up HP 12 x 84 W 8 x48onup i'..11 HP 13 & HP14 W 10 x 39 on .up W 12 x 65 on up W 12 x 35 on up W 1·4 x 90 onup 12 91 .9 HP 12x74 C 15 x40onup HP 12 x 84 MC 12 x50 HP 13x73 MC 13 x 50 on up HP 13 x87 W 8 x 58 onup HP 13 x 100 W 10x45onup i'..11 HP 14 W 12x35onup W 12 x 72 on up W 14x 90onup 13 106 HP 12x84 C 15 x 50 HP 13x87 "MC 18 x 42.7 on up. HP13xl00 W 10x49onup i'..11 HP 14 W 12 x45onup W 12 x 72 on up W 14x 90onup 14 120 HP 13 x 100 MC 18x42.7onup HP 14x89 W 10 x 54 on up HP14x102 W 12 x50onup HP14xll7 W 12 x 96 onup W 14x 90onup 16 136 HP13xl00 MC 18x51.9onup HP 14 x 102 W 10 x 66 on up HP14xll7 W 12 x 53 onup W 12 x 106 on up W 14x 90onup 18 164 HP 14x 102 S 18x54.7onup .HP14xll7 W 10 x 77 on up W 12 x 120 onup Wl4x6lonup W 14 x 103 on .up W 16x58onup W 18x50onup W21 x49onup 20 188 W 12 x 161 on .up S. 18 x 70 W 14 x 119 on up S20x65.4onup W 21 x 112 on up W 10 x 89 on up W 24 x 100 on up W 12 x 72 on up Wl4x6lonup W 16x58onup w· 18 x 55 on up W 21 x 55 on up 22 W 12 x 161 onup S20x65.4onup 212 S24x79.9onup Wl4xl36onup W 24 x 100 on up W 10 x 100 on up W 24 x lOOonup W 12 x 79onup W 14x 74onup Wl6x7lonup W 18 x 60onup W 21 x 55 on up W24 x55 onup 24 236 W 12 X 190 S20x65.4onup Wl4xl50onup Wl0xll2onup W 24 x 100 on up W 12 x 92 on up W 24 x 100 on up W 14x 78onup W 16 x 78 on up W 18 x64onup W21 x62onup W 24 x 61 on up Structural steel beam supports for precast c0ncrete panels. (Section modulus and shapes taken from AISC Manual of Steel Construction, 8th edition.) Beams shall be ASTM A36 all purpose steel. BEAM DESIGN TABLE Exca,·ate and lev·el beam seat per Detail A Panel~ Concrete Tie plate and tie bar ~ {See Detail C) / 1/ '\;:..------·/ -. // / Pour min. 3" concrete, set beam, pour min. 3" cov·er ov·er end, sides and.top ofbeam .Form of wood, metal or '- rock (may be left in place) /~ Anchor bolt and welded wire or steel plate, if required A DETAIL A BEAM SEAT Keyway .in. rock >-: Optional panel footings for ~ panel edge or end at locations \ 1 where rock does not hold a min. l' flat edge or as directed by PROJECT MANAGER Shaft. opening DETAIL B OPTIONAL PANEL FOOTINGS . Top View (full V weld around bar) 1" x 10" x 3" Tie Bar 8 "....,.,___1" Maximum Spacing Grade surficial ........---- materials back Section ,:iew showing I beam set in concrete, panels, and tie bar GENERAL NOTES DETAIL C SECTION AND TIE PLATE DETAIL ///////////////l ,II _III ///////II//II/ / • / 1 CAUTION: This project requires construction ,vork around and over / hazardous and unprotected mine shafts, stope, adits, and other / openings ,vhich may be open to the surface or hidden from vie,v by / trash, debris or thin and unstable layers of surficial materials or rock. 1 The CONTRACTOR shall be. responsible for thoroughly investigating ' the site conditions and scheduling his equipment, equipment / 1 operations, personnel and safety procedures to prevent accidents and I InJunes . fl : / I / I / I /·1 111111 ///::'/II/Il l 'llll//ll//f _f/ - -- - - -/ / / / / / / - - - - - 1. Standard Dra,wing No. 1 is intended to prov·ide installation details for ,precast reinforced concrete panels to close hazardous mine openings. Standard Drawing No. l shall be used in conjunction with site specific information in the. bid documents. 2 During excav·ation, the nature of the bearing s.urface for precast concrete panels may v·ary and show a different configuration than that shown on the drawings. The contractor shall notify the Project Manager of this situation and v·arious panel footing options or layout 1nodifications will be authorized if required. 3, Concrete for panel footings, shims and miscellaneous uses shall hav·e a minimum compressiv·e strength of 3,000 psi at 28 days. 4 . Steel beam and built up steel section supports for precast concrete panels are shown in Table A for the maximum allowable fill height of four feet for precast concrete panels. The opening to be cov·ered may v·ary up to 24 feet in span and. any length. Only those HP, W, and built up shapes meeting the section modulus requirements for v·arious spans, and hav·ing minimum ofa 12 inch wide flange, are shown. PRECAST CONCRETE PANEL CLOSURE Excavate and level sides Panel with grated ' access openmg Full pane ls (typ) Backfill limits (typ) ----........ 2' mi.J.1. (typ.) / Steel beam Hand trim edge if required i---Shaft opening 7 ~ Excav·ation Line 2 i' max. backfill encroachment ov·er panel or as specified Fill low foundation areas with compacted waste rock or concrete to form foundation. Use waste rock if possible, generally up to 1.5' max. Use lean mix concrete ov·er 1.5' or as directed by Project Manager. (See Detail B) PRECAST CONCRETE PANEL CLOSURE SECTION A -A' C'.OLORADO DTVTSTON C>"F MINERALS ,--,&-- GEOLOC;Y RECLA OIA TIOM,Mlt.JI NG SAFETY •SCI ENCE A' INACTIVE MINE RECLAMATION PROGRAM STANDARD DRAWII\IG No. F'RECAST CON CRETE PAN EL 1 CLOSURE Scale Varies December 200.3 Sheet No . 1 of 1 Drawn by: ALA Revi e wed b y JTH and JTG