Tenders Are Invited For Construction Work For Highways - Execution Of Works On The Objective: Consolidation ...

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Construction Work For Highways - Execution Of Works On The Objective: Consolidation And Protection Of Slopes On Dn 7A Km 63+200-Km 86+601. The National Road Dn 7A, On The Studied Sector, With A Length Of 21,932 Km (According To The Projected Axis And Topographic Measurements), Is Classified In Technical Class Iv, And From The Point Of View Of The Importance Category, It Is Classified In Class C Of Normal Importance. The Degradations Observed Along The Entire Length Of The Studied Road Sector Are The Following: Tiles With A High Level Of Severity; Longitudinal Cracks And Cracks; Fillings And Extended Carpets; Most Of Them Were Over 5.00 Cm; Waves; Surface Exudates; Pinches; Ceding Of Abutments; Clogged Ditches; Partially Executed Floors That Do Not Show Major Degradation Or Defects That Do Not Allow The Continuation Of The Works. The Supporting Walls Are Degraded And Too Low In Height, With Materials Spilled Over The Crown, A Fact That Also Led To The Massive Clogging Of Ditches; Non-Functional Barbicans; Displacements Of Sections In The Joint Area; Local Failures As A Result Of Casing Overturning And Overturning; Embankment Break Etc. The Bridges Have Concrete With A Friable Appearance; Surface Defects Of The Visible Face; Corrosion Of Fittings; Rust Stains; Reducing The Section Of The Element; Infiltrations; Concrete Segregations; The Absence Of Caissons, Stairs And Walled Ditches At The Foot Of The Slopes; The Bed In The Area Of ​​The Bridges Is Undeveloped And With Deposits Of Material. The Floors Are Mostly Unfinished But (Partially Executed) With A Structure Made Of Prefabricated Elements For Which The Monolithic Tympanums And Wings Were Not Cast, The Fall Chambers Were Not Made, Etc. Planned Route: The Projected Solution Of The Planned Route Remained Unchanged With The Exception Of The Corrections To The Curves At Km 83+380 And Km 84+280, Which Were Necessary As A Result Of The Connection Of The New Designed Bridges. Longitudinal Profile:  Minimum Slope Of 0.1%; Maximum Slope Of 10.55%; Minimum Radius For Concave Connections Of 750 M And Minimum Radius For Convex Connections Of 350 M (Being Used In Two Locations). Transverse Profile: It Is Maintained With The Width Of The Platform Of 8.00 M, Of Which:  The Width Of The Carriageway: 2X3.00 M = 6.00 M  The Width Of The Approaches: 2 X 1.00 M Of Which Framing Lanes: 2 X 0 .25 M;  Transverse Slope: 2.50% For The Carriageway And 4.00% For The Approaches. The Road Structure - With The Adaptation Of The Thickness Of The Layers And The Mixtures To The Provisions Of The Normative Regarding Hot Asphalt Mixtures. Technical Conditions For Design, Preparation And Commissioning Of Asphalt Mixtures. Code And 605-2016. The Dimensioning Of The Road Structure Was Carried Out For The Perspective Period Of 25 Years And The Calculation Traffic Volume, Heavy 0.3 - 1 M.O.S. The Main Categories Of Works That Must Be Carried Out For The Execution Of The Objective Consolidation And Protection Of Slopes On Dn 7A Km 63+200-Km 86+601 Are: - Reinforcement Of The Existing Road Structure Using The Existing Dowry - New Road Structure - Widening Boxes As Well As On Areas For Complete Restoration Of The Road Structure - Drainage And

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