In this diagram, you can often see grade points, overhaul and free haul regions and balance points. These diagrams are crafted using a mass haul view and a mass haul line. The mass haul view refers to the grid where the mass haul line is placed. The mass haul line refers to the overhaul and free haul volumes in fill and cut conditions that run along an alignment.
A project is in a cut region if the mass haul line rises. In contrast, if the mass haul line drops, the project is in a fill region. Grade points are stations on a mass haul diagram that shows when a project design shifts from cut to fill. A grade point will reveal the lowest or highest point in a region of a mass haul. The opposite occurs when the grade point is at the lowest point of a mass haul region. At this lowest point, the profile goes from a fill condition to a cut condition.
To measure free haul using grade points, you draw a horizontal line that is long enough to cover the span of the particular free haul distance. On a mass haul diagram, balance points refer to the stations where the fill volumes and the net cut are equal.
More specifically, the balance points are stations where the net volume equals zero on the line. To measure free haul with balance points, begin by duplicating the mass haul line and move horizontally. The distance it moves will be based on the free haul distance. Mass haul diagrams are primarily used to provide a more accurate representation of the materials being moved. They give viewers key information about free haul, average haul and overhaul.
For instance, you can calculate the free haul between specified balance points. Besides just finding the free haul between two points, you can find the free haul of the whole project. They also have the very practical use of telling professionals and contractors the way project material needs to be transported.
The diagram can showcase how much dirt a project needs to move. As the chart indicates, a degree day value is determined for each day of the month. But you will never see both heating and cooling degree day values for the same day. As long as the heating degree days and the cooling degree days are calculated independently, they represent an excellent measure of weather severity.
And consider two days:. The faulty aggregation process has smoothed out the disparate weather data and rendered it meaningless! In actuality, the energy required to maintain building temperatures in Denver on those two days was much greater than in San Diego. Only the degree day concept enables us to accurately assess the difference in weather severity.
The same principal holds true when considering aggregate annual temperature data. So is Dallas, TX. But in Dallas, people spend much more money on air conditioning in the summer and heating in the winter. By correctly determining your building's balance point and degree days, you can begin analyzing weather's impact on your energy usage. Search for free courses, interactives, videos and more!
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Level 3: Advanced. Course rewards. Free statement of participation on completion of these courses. Create your free OpenLearn profile. Course content Course content. Energy in buildings Start this free course now. In this lesson students will focus on how to find measures of center and spread when data are organized in a frequency table. All rights reserved. TI websites use cookies to optimize site functionality and improve your experience. To find out more or to change your preferences, see our cookie policy page.
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Learn about the math and science behind what students are into, from art to fashion and more. We are here to help with distance learning resources for schools and districts. See our latest posts. Grade Level 6,7. In this lesson, students focus on how the mean can be described as the balance point for the distribution of a set of data.
Planning and Resources Objectives Students should identify the mean as the balance point of a distribution.
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