Deploy Innovation
ADKO strives to develop innovative solutions aimed at shortening project delivery, enhancing safety, and minimizing environmental impacts, which will all lead to faster construction and lower costs. ADKO is very experienced in producing innovative solutions for roads.
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[su_tab title=”Tire Derived Aggregate (TDA)” disabled=”no” anchor=”” url=”” target=”blank” class=””]
Tire Derived Aggregate (TDA)
ADKO Engineering used TDA for the design and construction of the Devlin Segment E Project. Segment E project is approximately 1,100 feet in length.
A. Lightweight fill
I. Tire shreds have a low unit weight of 40 to 60 pcf; the low end of the range is for a thin tire shred fill with no soil cover; the high end of the range is for a thick tire shred fill with a thick soil cover —- for comparison, the typical unit weight of gravel is 125 pcf
2. Tire shreds as lightweight fill for embankment construction are needed for two reasons
a) Slope stability or landslide problems
( 1) These could be caused by weak foundation soils, such as soft clays, or weak bedrock
(2) Tire shreds are used to increase the stability of an embankment constructed on soft marine clay is shown in Fig. II-1
b) Excessive settlement caused by weight of embankment
( 1) This most often occurs when there is a large thickness of underlying soft clay
(2) Tire shreds reduce weight of embankment, thereby reducing settlement
B. Retaining wall and bridge abutment backfill
- For conventional walls, tire shreds have two benefits: reduced pressure on the wall and reduced settlement if the wall is founded on compressible soil; typical application is shown in Fig. II-4
a) Reduced pressures mean cheaper wall
b) Lightweight fill means less settlement due to underlying compressible soils; less cracking of wall; found wall on spread footing rather than pile foundation
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[su_tab title=”CSI Bridge Modeling” disabled=”no” anchor=”” url=”” target=”blank” class=””]
CSI Bridge Modeling
An independent check structural analysis of the OC405 widening and replacement structures was performed using several software packages to design box girders, bent caps, columns, footings, and piles. The eight structures were analyzed under seismic loading using commercial Finite Element Methods (FEM) software called CSi Bridge Version 20.1.0.
3-D model was developed for the longitudinal and transverse response spectra elastic dynamic and push over non-linear analyses. Abutments were modeled using shell element. Nonlinear soil springs were included in the model for connector’s CIDH and abutments steel pipe piles to include the effect of soil structure interaction and determine piles capacities and demands.
Ductility and strength analyses were performed for columns.
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[su_tab title=”Timber Rail for Bridges” disabled=”no” anchor=”” url=”” target=”blank” class=””]
Timber Rail for Bridges
ADKO Engineering used Timber Rail for the design and construction of Oakville Cross Road Bridge Project .
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[su_tab title=”Track Slab on Clay” disabled=”no” anchor=”” url=”” target=”blank” class=””]
Track Slab on Clay
ADKO Engineering used an efficient track slab section for the Houston Light Rail Corridor track slab.
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