Reference no: EM133609733

Prepare detailed geotechnical design

ASSESSMENT - PROJECT

Task Summary:

This project requires that you prepare detailed designs of geotechnical works in civil construction, including evaluating design options, preparing, and finalising designs and advising on design implementation for the simulated organisation provided in the simulation pack.

Resources Required:
• Learner learning resources and other information for reference
• Computer with Microsoft Office and internet access
• Access go ATCWA's simulated workplace
• Simulation pack
• Templates (included in the task sheet)
• Role-play participants

Ensure that you:
• Submit completed project with completed assessment coversheet and the agreement
• Submit this assessment on or before the due date
• Adhere to ATCWA's submission guidelines mentioned above
• Submit work which is original and, where necessary, properly referenced
• Avoid sharing your answers with your colleagues

Project

This project requires you to prepare detailed designs of geotechnical works, including evaluating design options, preparing, and finalising designs and advising on design implementation. This includes:
• Locating and applying relevant legislation, documentation, policies and procedures.
• Implementing the requirements, procedures, and techniques for the safe, effective and efficient completion of detailed geotechnical works design.
• Working effectively with others to undertake and complete detailed geotechnical works design that meets all the required outcomes:
• Demonstrating completion of detailed geotechnical designs that safely, effectively, and efficiently meets all of the required outcomes.

To do so, you will be required to complete the following activities:
• Activity 1: Plan detailed design of geotechnical works
• Activity 2: Carry out detailed design of geotechnical works.
• Activity 3: Finalise design processes for geotechnical works.
• Activity 4: Support and review design implementation of geotechnical works

Before begin this assessment, carefully read through the simulation pack provided to you separately.
While preparing detailed designs of geotechnical works in civil construction, you will be required to:
• Access and interpret plans, drawings, specifications, and design briefs.
o Review the project plans, design briefs, and specifications to understand the alignment and profile of the proposed road.
o Examine the drawings to identify critical sections with slope stability concerns.
• Access and interpret Australian and other appropriate standards.
o Research and review relevant Australian standards, such as AS 4678 (Earth Retaining Structures) and AS 3798 (Guidelines on Earthworks for Commercial and Residential Developments).
o Consult additional international guidelines or standards applicable to slope stability analysis and design, if required.
• Access and interpret engineering survey and geotechnical information.
o Collect and analyse site-specific geotechnical data, such as soil and rock profiles, groundwater levels, and soil properties from borehole logs and in-situ tests.
o Review any previous geotechnical investigation reports and slope stability analyses conducted in the area.
• Access and interpret hydrological, meteorological, cultural, and heritage data.
o Obtain data on local rainfall patterns, surface water flows, and drainage conditions to understand their impact on slope stability.
o Review any available cultural and heritage information to ensure that the proposed design does not negatively impact any significant sites.
• Access and interpret geotechnical works construction materials test results.
o Review laboratory test results for the collected soil and rock samples to determine their engineering properties, such as shear strength, compressibility, and permeability.
• Access and interpret geotechnical works selection data.
o Evaluate and compare different slope stabilization techniques, such as retaining walls, soil nails, ground anchors, and geosynthetics, based on their suitability for the site conditions and project requirements.
• Apply computer aided drafting design (CADD) and drafting technology.
o Use CADD software to prepare detailed design drawings of the proposed slope stabilization measures, including plan views, cross-sections, and details of reinforcement and drainage systems.
• Apply engineering graphical presentation techniques.
o Create clear and concise visualisations, such as graphs, charts, and tables, to present the results of the slope stability analysis and design, including factors of safety, deformation estimates, and comparisons of alternative solutions.
Access the following documents:
• Plans
• Drawings
• Specifications
• Design briefs
• Australian and other appropriate standards
• Engineering surveys and geotechnical information
• Hydrological, meteorological, cultural and heritage data
• Geotechnical works construction materials test results
• Geotechnical works selection data
When preparing geotechnical designs, you must:
• Calculate areas, volumes, densities, mass, percentages, and grades
o Calculate the areas and volumes of the cut and fill sections, as well as the required quantities of construction materials (e.g., soil, rock, concrete, geosynthetics).
o Determine the mass and densities of the materials to be used in the design.
o Calculate the slope angles, grades, and any required reinforcement spacing or lengths.
• Maintain design and cost records.
o Document all design calculations, assumptions, and decisions throughout the process, ensuring that they are traceable and easily understandable.
o Keep track of cost estimates and budget considerations for each design option.
• Determine geotechnical works loadings.
o Identify and quantify the loadings that the slope stabilization measures must resist, such as dead loads, live loads, and hydrostatic pressures.
o Consider potential seismic and wind loads, if applicable.
• Select geotechnical works options.
o Based on the site conditions, project requirements, and comparative analysis, select the most suitable slope stabilization technique(s).
• Size geotechnical works components
o Determine the dimensions and specifications for the selected slope stabilization components, such as retaining wall thickness, soil nail lengths and spacing, or ground anchor depths and capacities.
• Select and apply appropriate construction techniques.
o Identify the most suitable construction methods and techniques for implementing the chosen slope stabilization measures, taking into account site access, equipment requirements, and environmental considerations.
• Develop and apply design plans.
o Prepare detailed design plans for the slope stabilization, including construction drawings, specifications, and bill of materials.
• Interpret and analyse data to recommend options.
o Evaluate the design options by analysing the data collected and the calculations performed. Recommend the most viable option based on factors such as cost, constructability, and long-term performance.
• Complete a detailed design of geotechnical works
o Finalise the design, ensuring that all calculations, assumptions, and specifications are clearly documented and adhere to the relevant standards and guidelines.
• Prepare a cost estimate.
o Prepare a detailed cost estimate for the selected slope stabilization measures, including material, labor, and equipment costs, as well as any contingencies.
• Participate in the review of the design.
o Present the design to peers, supervisors, or other stakeholders for review and feedback. Address any concerns or suggestions and revise the design as necessary.
• Obtain design approval.
o Submit the final design to the appropriate authorities or client for approval, ensuring that all required documentation is included.
• Complete and submit design costs.
o Finalize and submit the cost estimate for the approved design, clearly documenting all associated costs and contingencies.
• Review application and recommend changes
o Monitor the construction process and review the application of the design in the field. Recommend any changes or modifications necessary to address unforeseen site conditions or other issues that may arise during construction.

Job responsibilities:

As part of your job role, you will have the following responsibilities:

• Gather, interpret, clarify, and confirm work specifications.
• Access, interpret, and apply documentation required for detailed geotechnical works designs, as well as ensure that work activity is compliant.
• Create a design plan based on the resourcing and design requirements.
• Gather, interpret, and analyse required data, and identify geotechnical works design options based on job requirements.
• Interpret and analyse geotechnical works design options and recommend design options based on job requirements.
• Create and complete detailed geotechnical works designs in accordance with job specifications.
• Create a cost estimate for implementing the geotechnical works design.
• Take part in the review of geotechnical works design with the necessary stakeholders.
• Complete required documentation for geotechnical works design in accordance with workplace requirements.
• Communicate and coordinate with design personnel in accordance with workplace requirements and within the scope of one's own role.
• Obtain design approval from the appropriate authorities.
• Ensure that design records are filed in accordance with workplace requirements.
• Complete the design cost and reporting requirements and deliver them to the appropriate stakeholders.
• Participate in design process performance review in accordance with workplace requirements.
• Examine client feedback and contribute to design verification in accordance with workplace specifications.
• Close out systems in accordance with workplace requirements.
• As needed, provide clarification and advice to personnel implementing design to meet job requirements.
• Examine design implementation and make changes as needed to meet job requirements.
• As needed to meet job requirements, contribute to the design validation process.

Activity 1: Plan detailed design of geotechnical works
This activity requires you to plan the detailed design of geotechnical works.
To complete this activity, you are required to:
• Complete the steps given in ‘Checklist 1' provided.
• Complete any template/s associated with each step, if any.
• Submit the required documentation as discussed in the steps to the trainer/assessor or supervisor.
While completing each step, you must place a tick mark against each step given in the checklist.
Your trainer/assessor (Supervisor) will observe you performing this activity and complete the observation report after the completion of the activity.

Steps
Step 1: Access, interpret and apply geotechnical works design documentation and ensure the work activity is compliant.

• Access the following road design documentation:
o Plans
o Drawings
o Specifications
o Design briefs
o Australian and other appropriate standards
o Engineering surveys and geotechnical information
o Hydrological, meteorological, cultural and heritage data
o Geotechnical works construction materials test results
o Geotechnical works selection data
• Interpret and analyse the following data and record using Template 1.
o areas
o volumes
o mass
o percentages
o grades
o geotechnical works loadings
o size of components for geotechnical works
• Consult with the Supervisor and team members and ensure the work activity is compliant.

Step 2: Obtain, read, interpret, clarify, and confirm work requirements.

• Consult your supervisor and obtain work requirements for the design of geotechnical works.
• Read the work requirements.
• Consult relevant authorities and interpret work requirements.
• Clarify and confirm project work requirements and information with relevant authorities.

Step 3: Identify and confirm the geotechnical works project requirements and information.
Step 4: Prepare a design plan using Template 2, which makes the best use of the available resources and meets the design requirements. Include the following information in the design plan:
• Human resource requirements
• Design hardware and software
• Coordination requirements
• Scheduling
• Review requirements
• Design process communication and reporting requirements.

Activity 2: Prepare detailed designs of geotechnical works.
This activity requires you to prepare a detailed design of geotechnical works.
To complete this activity, you are required to:
• Complete the steps given in ‘Checklist 2' provided.
• Complete any template/s associated with each step, if any.
• Submit the required documentation as discussed in the steps to the trainer/assessor or supervisor.
Your trainer/assessor (Supervisor) will observe you performing this activity and complete the observation report after the completion of the activity.

Steps
Step 1: Gather, interpret, and analyse required data and identify geotechnical design options based on job requirements.

• Calculate and analyse the following aspects of the design for geotechnical works:
o areas
o volumes
o mass
o percentages
o grades
o geotechnical works loadings
o size of components for geotechnical works
• Analyse the design options for geotechnical works.
Further, based on the above-given analysis of data, you are then required to prepare a report using Template 3 to the management that includes the following:
• Two (2) viable options for the design of geotechnical works.
• Provide a recommendation on the preferred option and provide a reason for the selection of the preferred option.

Step 2: Complete the detailed design of the geotechnical works using computer-aided drafting design (CADD) and drafting technology.

• Access computer-aided drafting design (CADD) technology such as AutoCAD to complete the design of geotechnical works.
• Take into consideration the data analysed and recommendations provided in Step 1.
• Submit the finalised design to your supervisor.

Step 3: Prepare a cost estimate for executing the designed geotechnical works using Template 4. Include the following information:
• Fixed costs: This includes the cost of purchasing equipment, material and plants.
• Time-related cost: This includes the cost of wages, equipment, and building rents spent on a particular activity in a given duration.
• Quantity proportional cost: It includes the cost of the quantity of material. It is of two types such as:
o Direct costs of construction of geotechnical works: The costs and expenses accrued on a facility, capacity or item are known as direct costs. The expenses caused by workers, materials and equipment, etcetera, are the direct costs of construction projects.
o Indirect costs of construction of geotechnical works: These are not directly accounted for on a particular facility, product or function. These are either variable or fixed.
• The construction cost of geotechnical works.

Step 4: Participate in the review of the design of geotechnical works with the required stakeholders.

Step 5: Carry out a risk assessment of the following:
• the existing conditions
• the application of the design
• maintainability of the completed works
Determine three (3) risks, calculate their risk rating and determine risk controls for each risk identified.

Step 6: Complete a design report for the design of the geotechnical works based on the outcomes of Step 1 - Step 5 using Template 4.Include the following information:
• Cover page, including the following information:
o Project Name
o Design Report
o Report Status (Draft / Final)
o Local Authority Name (and Number)
o Project Number and Contract Number (if relevant)
o Date (Month / Year)
• Table of content
• Body of the report
o Evaluation of design options for geotechnical works
o Calculations for:
• areas
• volumes
• mass
• percentages
• grades
• geotechnical works loadings
• size of components for geotechnical works
o Design plans for geotechnical works
o Cost estimates
o Recommended sizing of components
o Recommended concrete strengths
Step 6: Complete a design report for the design of the geotechnical works based on the outcomes of Step 1 - Step 5 using Template 4.Include the following information:
• Cover page, including the following information:
o Project Name
o Design Report
o Report Status (Draft / Final)
o Local Authority Name (and Number)
o Project Number and Contract Number (if relevant)
o Date (Month / Year)
• Table of content
• Body of the report
o Evaluation of design options for geotechnical works
o Calculations for:
• areas
• volumes
• mass
• percentages
• grades
• geotechnical works loadings
• size of components for geotechnical works
o Design plans for geotechnical works
o Cost estimates
o Recommended sizing of components
o Recommended concrete strengths
o Recommended reinforcement sizing and location
Step 7: Communicate and coordinate with personnel involved in the design process according to workplace requirements and within the scope of their role.
• Conduct regular meetings to measure the progress of each workgroup involved in the design process.
• Submit the meeting minutes to the trainer/assessor.
Step 8: Gain design approval from a higher authority.
• Submit the design approved to the trainer/assessor.

Provide a recommendation on the preferred option and provide a reason for the selection of the preferred option.
(200-300 words)

Activity 3: Finalise design processes for geotechnical works
This activity requires you to finalise the design processes of geotechnical works.
To complete this activity, you are required to:
• Complete the steps given in ‘Checklist 3' provided.
• Complete any template/s associated with each step, if any.
• Submit the required documentation as discussed in the steps to the trainer/assessor or supervisor.
Your trainer/assessor (Supervisor) will observe you performing this activity and complete the observation report after the completion of the activity.

Steps
Step 1: Confirm design records are filed according to workplace requirements.

Further:
• Submit the filed design records to the trainer/assessor.
Step 2: Complete and submit design cost and other reporting.

• Submit cost and other reporting to the trainer/assessor.
Step 3: Participate in a performance review of the design process according to workplace requirements.
• Determine the effectiveness of design processes implemented and document using Template 6.
• Recommend any changes required to the Supervisor and gather feedback and document using Template 6.
Step 4: Seek client feedback and contribute to verifying the design.
• Consult clients and seek feedback on design.
• Verify the design and make any recommended changes.
• Submit the revised design if any changes are made.
Step 5: Close out systems according to workplace requirements.

Activity 4: Support and review design implementation of geotechnical works
This activity requires you to support and review the design implementation of geotechnical works
To complete this activity, you are required to:
• Complete the steps given in the ‘Checklist 4' provided.
• Complete any template/s associated with each step, if any.
• Submit the required documentation as discussed in the steps to the trainer/assessor or supervisor.
Your trainer/assessor (Supervisor) will observe you performing this activity and complete the observation report after the completion of the activity.

Steps
Step 1:Provide clarification and advice to personnel implementing design as required to meet job requirements.

Instructions:
• Provide clarification and advice on the flowing to the personnel or authorities applying the design. Discuss and clarify the following with them:
o Design characteristics
o Key areas of consideration
o Outcomes of design reports
Step 2: Validate designs.
• Evaluate the design implementation and recommend changes as required to meet job requirements.
• Further, record the following based on design validation using Template 7.
o Assessment of design implementation
o Recommended changesTask - Geotechnical Works Design
You are required to undertake a civil construction design project as outlined below. Your Assessor will take the role of the client for the purposes of this assessment task.

Design Specifications
1. The Problem
You are a civil draftsperson working for the state department of Geotechnical Engineering. You have been assigned responsibility for the design of Geotechnical Design for a Multipurpose Project having Water retaing Structue on one side and Highway on the top. The width of river is 35 m.

Design Objective
Satisfy all of the specifications listed below, while keeping the total cost of the project as low as possible.

Site Configuration
1. The plastic limit of soil is 25%, the plasticity index is 8 %, Shrikage limit and shrinkage should be calculated with the suitable method as prescribed in Australian Codes.
2. Determine Water Content by Oven Drying Method or Pycnometer having following Data
3. Determine the specific Gravity of Soil fraction 4.75 mm by density bottle.
4. Determine Dry Density and Dry Unit Weight by suitable method as given in Australian Code of Practice.
5. Determine Shrinkage Factors of Soil.
6. Using the above calculated data, Suggest a suitable embankment/foundation for the project.
7. Determine the size of footing using the suitable method.
Loads
The highway must be capable of safely carrying the heavy vehicular loads and water from the water on the other side.

Attachment:- Prepare detailed geotechnical design.rar