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THIS DESIGN,IN ITS ENTIRETY,INCLUDING GROUND REINFORCEMENT PLANS, RI V I R CLASS IV GROUND SUPPORT <br /> DETAILS AND ENGINEERING CALCULATIONS FOR GROUND SUPPORT POOR GROUND U P TO 12 LWI D E <br /> CLASSIFICATIONS PROVIDED BY LANGSTON&ASSOCIATES TO CLIMAX AND <br /> HENDERSON DURING PHASE I TUNNELING OPERATIONS.REFINEMENTS TO <br /> THE GROUND SUPPORT PLANS AND DETAILS ARE REQUIREMENTS OF <br /> CLIMAX MOLYBDENUM CORPORATION. <br /> ROCK BOLT <br /> .,/i:'�\ice'�\i°�\ :'o%/°�\%/�'�\•%i�, <br /> MIN fill <br /> ` CONTRACTOR TO MINIMIZE 0 ❑ ❑ <br /> SYNTHETIC FIBER OVER-EXCAVATION OUTSIDE OF <br /> REINFORCED / NEAT LINE <br /> SHOTCRETE <br /> � . ..1 4FT w <br /> TUNNEL ' ❑ Q <br /> ! SPRING-LINE <br /> OFT <br /> _R6aF I 4 FT a <br /> 1.OFT O <br /> 14.0 FT Z <br /> O <br /> 4X4 W2.9XW2.9 1 ❑° ❑° F= <br /> WELDED WIRE ! 3.OFT U <br /> TUNNEL <br /> / I EXCAVATION REINFORCEMENT bil=ail= 8.OFT <br /> - \ <br /> I < NEAT-LINE <br /> 12.OFT b \I \I <br /> J ❑ ❑ ❑ <br /> TYPICAL TUNNEL 4.OFT c a <br /> AS-BUILT LINE TUNNEL SILL "�\//;'�\ <br /> LINE 1.OFT 12.0 FT <br /> \r---- —— PLAN VIEW OF BACK <br /> TUNNEL CROSS-SECTION VIEW <br /> RIB SUPPORT <br /> 1) INITIAL ROCK REINFORCEMENT <br /> -FOUR ROWS 7 FT ROCK REINFORCEMENT -7 FT,46mm SPLIT SET BOLTS ON A SYSTEMATIC 4 FT GRID WITH WELDED WIRE REINFORCEMENT <br /> UPPER ROW.- BOLTS INSTALLED 2 FT ABOVE 8 FT SPRING LINE DIRECTION OF ADVANCE— INSTALLED UPON INITIAL EXCAVATION. <br /> MID ROW. BOLTS INSTALLED 1 FT BELOW 8 FT SPRING LINE ❑° 23-4.0 FT— -E] i ❑° NOTE:24 TONNE COATED SWELLEX MAYBE SUBSTITUTED IN PATTERN <br /> LOWER ROW BOLTS INSTALLED 4 FT OFF SILL 2.0 FT <br /> _ — — — i1 2) INITIAL SURFACE SUPPORT <br /> BOTTOM ROW: BOLTS INSTALLED 1 FT OFF SILL TO SECURE WWM 1.0 FT -MINIMUM 3 IN SHOTCRETE APPLIED PRIOR TO FINAL ROCK REINFORCEMENT ON ENTIRE <br /> 0 \ ❑c I T EXCAVATION PERIMETER. <br /> PRE-SUPPORT ON ADVANCE MAY BE REQUIRED DEPENDING TUNNEL <br /> ON CONDITIONS SPRING-LINE 3.0 FT 3) FINAL ROCK REINFORCEMENT <br /> -INSTALL 7 FT,46mm GALVANIZED SPLIT SET BOLTS ON A SYSTEMATIC 4 FT GRID BETWEEN <br /> -INSTALL 12 FT E9 THREADBAR SPILING ON 12 IN CENTERS AROUND ❑° ❑c 8.0 FT SHOTCRETE LAYERS AS SHOWN. <br /> EXCAVATION PERIMETER NOTE:24 TONNE COATED SWELLEX MAY BE SUBSTITUTED IN PATTERN <br /> -6 FT MAXIMUM ROUND LENGTH ON ADVANCE THEN INSTALL ANOTHER 4.0 FT <br /> TUNNEL SILL 4) FINAL SURFACE SUPPORT <br /> ROUND OF SPICING. ❑o 0 -MINIMUM 3 IN SHOTCRETE APPLIED AFTER FINAL ROCK REINFORCEMENT ON ENTIRE <br /> 1.0 FT EXCAVATION PERIMETER. <br /> NOTE: 12 FT HOLLOW INJECTION ANCHOR SPILING ON 18 IN CENTERS MAY SCALE <br /> BE SUBSTITUTED IN PATTERN LONG SECTION VIEW OF RIBS 7 FT,46mm GALVANIZED SPLIT SET BOLT WITH PLATE z.s' o z.s' s' <br /> v< <br /> DESIGN=D VARIOUS REVISION <br /> WARNING Cw.nN CLIMAX MINE <br /> w Q <br /> 0 0.5 1 <br /> RLM <br /> AJH MAYFLOWER FLOOD BYPASS TUNNEL SYSTEM PROJECT NO 12235 <br /> ISSUED FOR CONSTRUCTION RLM 4/19 Mclimax Molybdenum IF THIS <br /> REVIEWED DL DFAWIVG <br /> w ISSUED FOR BID RLM 10118 NOT MEASURER DOES <br /> TYPICAL GROUND SUPPORT DETAILS MFT-C-12 <br /> A f/�y�- spry NOT MEASURE 1" CLIENT <br /> S 0 ISSUED FOR CLIENT REVIEW RLM 9/1B PROJECT CONSTRUCTION MANAGEMENT THEN DRAWING IS MM/RV <br /> ENGINEEERING,GEOLOGY,SURVEYING NOT TO SCALE DATE 415119 RMR CLASS IV GROUND SHEET OF <br /> � -REV DESCRIPTION OF REVISION BY DATE <br />