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Chateaus-CS080616
,r-- TRENCH SAFETY PLAN UTILITY LINES THE CHATEAUS OF COPPEll (IN AND AROUND BETHEL & DENTON TAP ROAD S) COPPEll, TEXAS FOR CTMGT - COPPElL, L.L.C. Note: Soil information indicates that a stiff clay (Type uB" soil) will be found on the project site. The following applies: r--- H = 3/4 in stiff clay (Type uB" soil or better). H = 1 or greater in Type lie" soil - Trench Sat Aan UtlIi1y lines The Chateaus of Coppetl Coppelt. Texas GENERAL NOTES ,...... . 1. For all excavations of trenches, which will exceed a depth of five feet, the Contractors trench safety procedures shall meet the current standards established by OSHA on excavations, trenching, shoring, and confined spaces, all of which are incorporated herein by reference. 2. If details shown are not feasible due to unanticipated conditions, the Contractor shall notify the Trench Safety Engineer for re-evaluation. 3. These drawings assume all excavated areas remain free of water seepage or intrusion. Excavations shall be inspected after every storm or other hazard-increasing occurrence to assure the continued safety of the trench. The Contractor shall seek guidance from the Trench Safety Engineer where needed. 4. When installing a support system, shoring will be applied by starting at the top of the trench excavation and working downward. All cross beams, trench jacks, etc., will be placed in a true horizontal position. Support system removal shall begin at the bottom and proceed upward, performed from outside the trench. ~ 5. Materials used for sheeting, sheet piling, bracing, shoring, etc., shall be in good serviceable condition. Timbers used shall be sound and free from large or loose knots and shall be designed and installed so to be effective to the bottom of the excavation. 6. Alternate design for use of steeper slopes of the use of supporting systems, i.e., piling, cribbing, shoring, etc., may be submitted by the Contractor for evaluation by the Trench Safety Engineer. 7. Slopes shown shall be the maximum unless changed by the Trench Safety Engineer due to changing soil conditions. Slopes shown are for a short-term period. If excavations are open for more than 24 hours, the Trench Safety Engineer shall be contacted for evaluation. 8. Cohesive soils are classified by their unconfined compressive strength, as follows: (psf = pounds per square foot; tons/sq ft = tons per square foot) Type "A"... more than 3,000 pst (1.5 tons/sq ft) Type liB"... more than 1,000 pst (0.5 tons/sq ft) and less than 3,000 psf (1.5 tons/sq ft) Type "C" ...Iess than 1,000 psf (0.5 tons/sq ft) that is not flowing or submerged. ,r--- Trench Sa Plan UtIlity lines The Chateaus of Coppall Coppell,Texas :201:5 ,,-.. Note: Either benched or sloped is acceptable 1 O' max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ~ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-. . . . . . . . . . . . .. . ... . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .. . . . . . . .. . . . . . . . . . . . . . . . . - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ::::::::::::::::::::::::::::::::::::::::: ", : -:-: .:-: -:-:-:-: -:.:-: -: -: .:-: -:.: -: .:-: " . . . . . . . . . . . . . . . . . . . . ':':':':':-:':':':':-:':':':':C ~:;:~:>:>:;:>:'~.'~~. \ :.:-:-:-:-:-:.:-:-:- " . . . . . . . - . . . . . - . . . . . . W As Required . - . . - . . - . . . . . . . . . - . . - . - . . . . . . - . . . . . . . . . . . . . . . ..... . . . . . . - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - . . . . . .. . . . .. .. . .. . .. . . . - . . - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - . . . . . . . . . . .... .. . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ".-. lYPICAL O~N CUT CROSS SECTION N.T.S. Trench sat Plan Utility Lines The Chateaus of Coppell Coppell.Texas :301:5 .r-"' Spaced 6' to 0' o.c. in unweathered limestone. Spaced ~' o.c. in stiff clay (Type '-.r' soli) and weathered limestone. Spaced 4" o.c., in dry Type "e" soli sheeted with 314", 14-p1y Finland Birch, or 1-118" COX plywood, or approved equal. 'Stand.rd' ..,.....11< ....ring ~ t 4' min. 1 6' max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - . .. . . . . . . . . . . . . . . . . . . . . - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : : :: :: :: :: :: :::: :: :: :: :: :: :: :::::: :: As per manufacturer's :::::::::::: : ::::::::::: :::::::::: : :jdata and limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - . . . . . . . . . . . . . . . . . . . . - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - .....".,.....,.,...'..."f . . . . . . . . . . . . . -:-:-:-:-:-:.>:- . : -: -: -: -: -: . :- : -: 2 max. a. . . . . . . . . . . - . . . . I, As Required ,I ~ The aluminum hydraulic shoring lIMed below are just three examples of trade names of 'standard' hydraulic shoring which are acceptable. The examples are with a width maximun of 55" Speed Shore Hydraulic Shores~ model No. V-I-55 or V-5-55 , or V-3.5-55~ or equal. Shores may be stacked. GME Vertical Shores, model No. HVS-1.J455 or HVS-5.J455, or HVS..35-3455, or equal. Shores may be stacked. EFFIOENCV PRODUcnON, models No. IX3455-S or 5X3455-S, or 35X3455-S or e ual. Shores m be stacked. AIsoavallable are Speed Shore 'Heavy Duty' shores, which rails run in the 0', 12', and 16' range. ....-' ALTERNATE HVDRAUUC SHORING CROSS SECTION N.T.S. Trench Sat Plan UtIll1y Lines The Chateaus of Coppell Coppell,Texas .r- . . . . . . . . . . . . . . . . . . . . . . . . 10. max . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . " . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - . . . . . . . . . . . . . . . . . . . . . . . . . . . ., . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...........'... I . . . . . . . ....,.......... ... max. . . . . . .. III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ~ As Required ,I . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...--. CROSS-SECTION N.T.S. Trench Box/shield side wall capacity shall be equal or greater than 420 pst for Type IIBII soil and equal or greater than 600 psffor Type IICII soil. If there are any changes in soil conditions, the Trench Safety Engineer shall be contacted for evaluation. Any manufacturedlrated trench shield system, such as Manhole Rings, Modular Shields, Panel Shields, etc. are included in this category. Trench box capac~ given above, ref.rsto sldeW8ltcapaclty of bottom box, In Type "BII soli, when boxes are stacked. If contractor requires "closed ends" for trench box, one accaptabte method Is by placing 3/.4"", or greater (or equal) substitute) steel plate (width size may vary) against spreaders of trench box. Other methods may be used with approval of Trench Safety Engineer. --- AI. TERNATE TRENCH BOX CROSS SECTION N.T.S. Trench S Plan UtIlity Lines The Chateaus of Coppell Coppell, Texas :58f:5