Design Guidelines for Test Level 3 through Test Level 5 Roadside Barrier Systems Placed on Mechanically Stabilized Earth Retaining Walls (2022) / Chapter Skim
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Pages 345-353
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From page 345... ...
345 APPENDIX F CONSTRUCTION SEQUENCE OF THE TL-5 MSE WALL TEST INSTALLATION Sequences of pictures of the construction of the TL-5 MSE wall test installation are shown from Figure F.33 through Figure F.39. The precast concrete panels and the precast concrete barriers were fabricated and donated by RECO in conjunction with the reinforcing strips and accessories.
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346 Figure F.227 shows when the concrete of the leveling pedestal is being poured. The bottom wall panels are resting on the 12 in.
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347 a 2,176 lb.
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348 Figure F.39 ND test to determine the in-situ dry unit weight and water content Figure F.232 Placement of the second row of panels Figure F.233 shows the location of the strain gages in the strips section B3_E_1st. The first, second and third strain gage were located at 7 in.
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From page 349... ...
349 Figure F.233 Location of strain gages in the strip Figure F.234 Placement of the last layer of backfill material Figure F.235 shows the unreinforced leveling pad on top of the wall panels and the un-, reinforced pedestal where barriers 7, 8 and 9 are going to rest. Figure F.236 shows the location of the tape switch which will indicate if there is contact between the coping section of the barriers and the wall panels.
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350 Figure F.235 Unreinforced leveling pad and pedestal Figure F.236 Tape switch located at the IP Figure F.237 shows the installation of the 15 ft (4.57 m) long precast concrete barrier.
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351 Figure F.237 Installation of the TL-5 precast concrete barriers Figure F.238 Reinforcement and shear dowels at the moment slab joint Figure F.239 shows when the concrete of the moment slab is being poured. The final compressive strength of moment slab concrete was 4000 psi (27.5 MPa)
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From page 352... ...
352 Figure F.239 Construction of the moment slab sections Figure F.240 Placement of road base material above the moment slab Figure F.241 shows the compaction process of the road base material. The backfill was compacted in loose lifts of up to 10 in.
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From page 353... ...
353 Figure F.241 Compaction process of the road base material Figure F.242 BCD Modulus test in the road base material
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