std cell wall_precastgravity_surcharge_gr_10-02-16_precast gravity by zqa20601

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									      GUARDRAIL
       (SEE NOTE
 FOR GUARDRAIL)
                                                                                                                                                                                                GUARDRAIL
                                                                                                                                                                                                (SEE NOTE
                                                                      GRADE ELEVATION                                                                                                      FOR GUARDRAIL)

                                  FINISHED GRADE*
                                                                                       TOP OF WALL                                                                                                                                                                                                                    GRADE ELEVATION
                                                       1:                              (SEE NOTE FOR FENCE OR
                                     PAVEMENT            1                                                                                                                                                                                                                                                            TOP OF WALL
                                                             (H         6"             HAND RAIL ON TOP OF
       SEPARATION                                                                                                                                                                                                           FINISHED GRADE*
                                      SECTION                  :V                      WALL, IF APPLICABLE)                                                                                                                                                                                                           (SEE NOTE FOR FENCE OR
            FABRIC                                                )
                                                                                                                                                                                                                                                                                           1:                         HAND RAIL ON TOP OF
                                                                                                                                                                                                                                                                                             1
                                                                                                                                                                                                                                               PAVEMENT                                          (H                   WALL, IF APPLICABLE)
                                                                                            UNREINFORCED CAP PRECAST                                                                         SEPARATION                                                                                            :V
                                                                                                                                                                                                                                                   SECTION                                            )
                                                                                            CONCRETE UNIT                                                                                        FABRIC

                                                                                OVERHANG
       NO. 57 STONE                                                            1/2" - 1-1/2"
                                                                                                                                                                                                                                                                                                                          UNREINFORCED TOP PRECAST
                                                                                                                                                                                                                                                                                                                          CONCRETE UNIT




                                                                                                                                       DESIGN HEIGHT - VARIES
                                                                                                                                                                                             NO. 57 STONE




                                                                                                                                                                                                                                                                                                                                                                     DESIGN HEIGHT - VARIES
                                                                                                                                                                (SEE WALL ENVELOPE)




                                                                                                                                                                                                                                                                                                                                                                                              (SEE WALL ENVELOPE)
                                                                                            UNREINFORCED PRECAST                                                                                                                                                                                                          UNREINFORCED PRECAST
                                                                                            CONCRETE UNIT (TYP)                                                                                                                                                                                                           CONCRETE UNIT (TYP)

                                                                                            WALL FRONT FACE                                                                                                                                                                                                               WALL FRONT FACE

                                                                                            BENCH                                                                                                                                                                                                                         BENCH
    BACKFILL MATERIAL
                                                                                           4’ MIN                                                                                                                                                                                                                         4’ MIN
                                                                                                                                                                                          BACKFILL MATERIAL
                        18" MIN                                                                                                                                                                               18" MIN
                                                                                       SINGLE FACED                                                                                                                                                                                                                    SINGLE FACED
                                                                                       PRECAST CONCRETE                                                                                                                                                                                                                PRECAST CONCRETE
                                                                                       BARRIER,                                                                                                                                                                                                                        BARRIER,
                                                                                       IF APPLICABLE           FINISHED GRADE*                                                                                                                                                                                         IF APPLICABLE          FINISHED GRADE*
                                                     BOTTOM                                                    6:1 (H:V) OR FLATTER                                                                                                                                                  BOTTOM                                                   6:1 (H:V) OR FLATTER
                                                    OF WALL                                                                                                                                                                                                                        OF WALL


                                                                                                2%                                                                                                                                                                                                                            2%
                                                        TOP OF                                                                                                                                                                                                                            TOP OF
 4" DIA. PERFORATED                                                                                                                                                                    4" DIA. PERFORATED
                                                       FOOTING                                                                                                                                                                                                                           FOOTING




                                                                                                                                       EMBEDMENT




                                                                                                                                                                                                                                                                                                                                                                     EMBEDMENT
    SUBDRAIN PIPE,                                                                                                                                                                        SUBDRAIN PIPE,




                                                                                                                                                                2’ MIN




                                                                                                                                                                                                                                                                                                                                                                                              2’ MIN
       IF REQUIRED                                                                                                                                                                           IF REQUIRED
(SEE NOTE FOR PIPE)                                                                                                                                                                   (SEE NOTE FOR PIPE)

                                                                      6" MIN                                                                                                                                                                                                                              6" MIN
     CAST-IN-PLACE                                                                         12" MIN   FINISHED GRADE*                                                                       CAST-IN-PLACE                                                                                                                 12" MIN    FINISHED GRADE*
                                                                       (TYP)                                                                                                                                                                                                                              (TYP)
      UNREINFORCED                                                                                   2:1 (H:V) OR FLATTER                                                                   UNREINFORCED                                                                                                                            2:1 (H:V) OR FLATTER
 CONCRETE FOOTING                                                                                                                                                                      CONCRETE FOOTING


                                                FOUNDATION                                                                                                                                                                                                FOUNDATION
                                                 MATERIAL                                                                                                                                                                                                      MATERIAL




                              PRECAST GRAVITY WALL WITH                                                                                                                                                             PRECAST GRAVITY WALL WITH
                           CAP PRECAST UNIT TYPICAL SECTION                                                                                                                                                      TOP PRECAST UNIT TYPICAL SECTION
                                       *SEE ROADWAY PLANS FOR FINISHED GRADE DETAILS.                                                                                                                                                      *SEE ROADWAY PLANS FOR FINISHED GRADE DETAILS.




                                                                                                                NOTES

                                                                      FOR PRECAST GRAVITY RETAINING WALLS, SEE PRECAST GRAVITY RETAINING WALLS                                                                          THE MINIMUM EMBEDMENT ELEVATION FOR RETAINING WALL NO.                                                              INCLUDES EMBEDMENT FOR
                                                                      PROVISION.                                                                                                                                        SCOUR.


                                                                      FOR GUARDRAIL, SEE ROADWAY PLANS AND SECTION 862 OF THE STANDARD SPECIFICATIONS.                                                                  DESIGN RETAINING WALL NO.                                                         FOR A LIVE LOAD (TRAFFIC) SURCHARGE.


                                                                      FOR SINGLE FACED PRECAST CONCRETE BARRIER, SEE ROADWAY PLANS AND SECTION 857 OF                                                                   DESIGN RETAINING WALL NO.                                                         FOR THE POINT, LINE or STRIP SURCHARGE LOAD SHOWN.
                                                                      THE STANDARD SPECIFICATIONS.
                                                                                                                                                                                                                        DESIGN RETAINING WALL NO.                                                         FOR A PIPE EXTENDING THROUGH THE WALL AS SHOWN.
                                                                      A CONCRETE BARRIER RAIL WITH A MOMENT SLAB IS REQUIRED ABOVE RETAINING WALL NO. .                                                                 VERIFY PIPE LOCATION AND ELEVATION BEFORE BEGINNING PRECAST GRAVITY WALL DESIGN OR
                                                                      SEE PLANS AND PRECAST GRAVITY RETAINING WALLS PROVISION FOR DETAILS OF A CONCRETE                                                                 CONSTRUCTION.
                                                                      BARRIER RAIL WITH A MOMENT SLAB.
                                                                                                                                                                                                                        ADJUST PAVED DITCH WIDTH OR BACK SLOPE FOR VARYING GRADE ELEVATIONS ALONG TOP OF
                                                                      A FENCE OR HAND RAIL IS REQUIRED ON TOP OF RETAINING WALL NO. . SEE ROADWAY                                                                       RETAINING WALL NO.                                               AND SUBMIT A CAST-IN-PLACE CONCRETE DITCH DETAIL FOR REVIEW
                                                                      PLANS FOR FENCE OR HAND RAIL ATTACHMENT DETAILS.                                                                                                  WHEN TOP OF WALL STEPS DOWN.


                                                                      USE PRECAST CONCRETE UNITS WITH A                      FACE FOR RETAINING WALL NO. .                                                              DO NOT PLACE CONCRETE FOR FOOTINGS FOR RETAINING WALL NO.                                                               UNTIL OBTAINING
                                                                                                                                                                                                                        APPROVAL OF THE EXCAVATION DEPTH AND FOUNDATION MATERIAL.
                                                                      USE PRECAST CONCRETE UNITS WITH A                      COLOR FOR RETAINING WALL NO. .
                                                                                                                                                                                                                        "TEMPORARY SHORING" IS or MAY BE REQUIRED FOR RETAINING WALL NO.                                                              IN ACCORDANCE
                                                                      A SUBDRAIN PIPE IS or IS NOT REQUIRED FOR RETAINING WALL NO. .                                                                                    WITH THE TEMPORARY SHORING PROVISION. SEE ROADWAY, STRUCTURE or TRAFFIC CONTROL
                                                                                                                                                                                                                        PLANS.
                                                                      BEFORE BEGINNING PRECAST GRAVITY WALL DESIGN FOR RETAINING WALL NO. , SURVEY
                                                                      EXISTING GROUND ELEVATIONS SHOWN ON THE WALL PROFILE VIEW (WALL ENVELOPE) AND                                                                     AT THE CONTRACTOR’S OPTION, "TEMPORARY SHORING FOR WALL CONSTRUCTION" MAY BE USED
                                                                      SUBMIT A REVISED WALL ENVELOPE FOR REVIEW. DO NOT START WALL DESIGN OR                                                                            TO CONSTRUCT RETAINING WALL NO. . SEE PRECAST GRAVITY RETAINING WALLS PROVISION
                                                                      CONSTRUCTION UNTIL THIS ENVELOPE IS ACCEPTED.                                                                                                     FOR TEMPORARY SHORING FOR WALL CONSTRUCTION.


                                                                      DESIGN RETAINING WALL NO.         FOR WALL HEIGHTS EQUAL TO THE DESIGN HEIGHT PLUS DEPTH
                                                                      TO TOP OF FOOTING (DIFFERENCE BETWEEN GRADE ELEVATION AND TOP OF FOOTING
                                                                      ELEVATION).


                                                                      DESIGN RETAINING WALL NO.        FOR THE FOLLOWING:
                                                                      1) MINIMUM SERVICE LIFE = 75 or 100 YEARS
                                                                      2) ALLOWABLE BEARING CAPACITY =             PSF
                                                                                                                                                                                                                                                                                                                                                      PRELIMINARY PLANS
                                                                      3) MINIMUM EMBEDMENT ELEVATION =                  FT                                                                                                                                                                                                                                  DO NOT USE FOR CONSTRUCTION
                                                                      4) IN-SITU ASSUMED MATERIAL PARAMETERS:


                                                                        MATERIAL TYPE            UNIT WEIGHT       FRICTION     COHESION (c)
                                                                                        (gamma)            ANGLE (phi)                PSF
                                                                                                                                                                                                                                           O
                                                                                                                                                                                                                                               F
                                                                                                                                                                                                                                                   N O RTH
                                                                                                                                                                                                                                                               C
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                                                                                                                                                                                                                                                                                                           GEOTECHNICAL                            STD CELL Wall_PrecastGravity_Surcharge_GR
                                                                                               PCF           DEGREES                                                                                                                                                   R




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                                                                                                                                                                                                                                                                                                  ENGINEERING UNIT                                         PRECAST GRAVITY WALL




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                                                                                                                                                                                                                                                                                                                                                                                                                    DATE: 2-16-10

								
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