Question
PLEASE HELP!!!! Scenario: As a result of winning a new project, construction equipment will be needed for the project. As an assistant construction manager, you
PLEASE HELP!!!!
Scenario: As a result of winning a new project, construction equipment will be needed for the project. As an assistant construction manager, you have been asked to help investigate and select the right machine(s) for use for the project. Also, your manager, Sam Super, asks you to estimate the production rate of the machines, the total time, and the total cost, for the selected machine to complete a given job. You are required to write a concise report about what Sam asks. The detailed requirements that you need to complete are listed below in the requirements section.
Requirements: Write and submit your report that includes the following items (Items 1 to 7): 1. Project description: Create one nice paragraph that describes the project (i.e., make up a project and job). The description should contain information about project location, project duration, project type, job type, machine type required, job intention, etc. Here is an example from a previous student, A five-year-long, at minimum, a construction project in Ranger, Georgia is about to kick-off and our company was contracted to do a part of the construction. The project involves creating the future Salacoa Creek reservoir. Our contribution to the project is to clear vegetation and topsoil and then excavate a substantial amount of land with appropriate construction equipment. This reservoir will be used for flood control and water retention facility. To complete this job, our company has decided to use one bulldozer for the vegetation and topsoil removal and one large backhoe excavator for the land excavation. The capabilities of our machines will need to be able to handle the specific job requirements that are listed in the next section. 2. Specific job description: Describe what the job conditions are. The conditions that need to be listed are dependent on the machines and project type you select. For example, if you selected an excavator for highway construction, the following items would be needed: material type, fill factor, swelling factor or load factor, operator skill, amount of work, bucket capacity, etc. Here is an example from a previous student, Based on the site visit and investigation, we found that the following job conditions exist on site. These conditions are vital to be aware of, to estimate the production rate of our machine and the total time and cost required for this project. The specific job conditions are as follows: Material: Moist Loam with a fill factor of 1.05 Operational Efficiency: 50min/hr General Job Condition- Average Job operator: Excellent Job Skill Excavation Amount: approximately 4,740,000 (BCY) based on the dimension. width: 237 yards, length: 2000 yards, and depth: 10 yards Swelling: 24% Bank Density: 2,600 lb/cu.yd. Average Depth: 15 ft. Online TCM 3332 Page 2 of 3 Maximum digging depth: 22 ft. Bucket Capacity: 6 LCY Expect 300 workdays a year. 8-hour workdays 3. Specific Machine Information: Among numerous models available for a certain machine type, you need to select one specific model for the job described above. Go to cat.com or other similar websites and select the right machine model. And present the models specification. As you know, the CAT website provides detailed spec information on each model. You dont have to list every single spec item provided on the website, but some critical information for you and your manager to know. For example, engine horsepower, travel speed, total weight, shoe size and ground pressure (if track machine), blade type, blade size, etc. are important for dozers. 4. Production Rate Estimation: Once you determine your specific machine type and model, you will need to estimate the production rate of the machine. Provide your formula or logic to clearly explain your productivity estimation in detail. As we practiced, the productivity estimation varies depending on the type of machine. Refer to the previous modules regarding this. 5. Ownership and Operation (O&O) Cost Estimation: The hourly O&O cost needs to be estimated. Recall we practiced this estimation in Module 3. Use an O&O cost form attached for your equipment. Notes for the O&O cost: The delivery (purchase) price of your machine depends on your machine type, size, and model. You might want to find this information on the internet. It doesn't have to be accurate. As long as it's reasonable, it'll be okay. For the residual value, 35% would be okay for a 5-year usage. If you want to use it for over 5 years, then the number should decrease. The interest is variable. You can check it out easily online. Again, it doesn't have to be very accurate. How much is it these days? around 7%? or 8%? Insurance, storage, and property taxes can be assumed to be about 1% respectively which is common. For maintenance and repair costs, you may use the same number we used for HW: around $3.00 per hour. Others can be reasonably assumed as well. 6. Total time and cost estimation: The total time to complete the given job needs to be estimated (note: ensure that the total time needs to be longer than 30 days. In other words, your project should be big enough to take at least 30 days). This can be done with the production rate that you obtain from the previous step. The total cost estimation should be based on the hourly O&O cost and production rate of your equipment. Provide all the formulas or logic for your estimation in detail.
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