CIRCLY Software - Australian Pavement Design System - Engineering Assignment Help

Assignment Task :

Objectives This assessment item relates to the unit learning outcomes 3, 4, 5 and 6. It develops students' ability to understand Australian pavement design system, materials and tests and design of alternative pavement configurations (flexible pavements, rigid pavements and structural overlays) using current Australian Guidelines and Design Practices. Use of CIRCLY software (pavement design software) is highly recommended when required. 

Geometric design, earth moving and subgrade evaluation of a new two-lane two-way road has been recently completed and now it is time for design of pavement in Victoria. The following are the project specific information supplied by the client (Road Authority in Victoria): 

• Two-way total AADT = [3000+ (the last four digits of your student ID ÷10)], rounded to nearest 10. 

• Pavement design period 30 years. 

• Project reliability 95%. 

• Directional distribution 60/40 

• Subgrade CBR value = 3% (if the last four digits of your student ID is < 3000), 5% (if the last four digits of your student ID is ≥ 3000 but < 6000) and 7% (if the last four digits of your student ID is ≥ 6000) 

• Heavy vehicles = 8% (if the last four digits of your student ID is < 3000), 9% (if the last four digits of your student ID is ≥ 3000 but <6000) and 10% (if the last four digits of your student ID is ≥6000) 

• Annual heavy vehicle growth is 1% throughout the design period 

• Traffic load distribution: TLD T12020 

• Volume of bitumen in Asphalt = 11%. 

• Other required information can be assumed within Australian Standard (Austroads Guides) 

Design Task 1: Pavement Design Input Parameters  

• Summarise and calculate (if required) ALL input parameters for both flexible and rigid pavement design  

Design Task 2: Flexible pavement design (10 marks) Design the following flexible pavement alternatives using empirical or empirical-mechanistic procedures (as applicable, appropriate or preferred!). You need to draw final design drawings for all cases (not to scale is acceptable but indicate all required dimensions and units of measurements). You must discuss/interpret everything you calculate or present. 

• Flexible 1: Unbound granular pavement with thin bituminous surfacing 

• Flexible 2: Full depth asphalt (E=3000MPa), surface layer asphalt (E=2200MPa)

• Flexible 3: Asphalt (E=3500MPa) with granular base (E=500MPa) 

• Flexible 4: Asphalt (E=2500MPa), granular subbase (E=550MPa) and cemented subbase (E=4000MPa) 

Design Task 3: Rigid Pavement design (8 Marks) Design the following rigid pavement alternatives using analytical or graphical methods (as applicable or appropriate or preferred!). You need to draw final design drawings for all cases (not to scale is acceptable but indicate all required dimensions and units of measurements). You must discuss/interpret everything you calculate or present. 

• Rigid 1: PCP pavement without concrete shoulder  

• Rigid 2: CRCP pavement with concrete shoulder 

Design Task 4: Design of Granular Overlay on Granular Pavement (2 Marks) A homogeneous section of a spray-sealed granular pavement was tested with a Deflectograph. The Measured Characteristic Deflection = 0.90mm. As the project was located in a temperate climate and the deflections were measured in April. Assume the same design traffic DESA as in previous tasks. 

• Granular Overlay: Design granular overlay using Empirical Procedure. You need to draw final design drawings (not to scale is acceptable but indicate all required dimensions and units of measurements). You must discuss/interpret everything you calculate  

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