An ingot 80 x 10 x 300mm is cast into a cylinder 120mm diameter. Planimeter how to use planimeter in surveying and what. Averageendarea volume computations traditionally, earthwork or dredging quantities for purposes of design estimates and construction payment have been obtained from crosssectional surveys of the project area. There are formulae readily available for regular polygons like, triangle, rectangle, square and other polygons. April 2004 figure 1 the three main types of levels. Area program this program calculates the area of a closed figure from measured data. Midordinate method, average ordinate, trapezoidal rule and simpson rule. Data needed for calculation survey data and notes area calculated from field notes data converted into coordinates or plotted plan existing map or. Add twice the sum of remaining odd ordinates and four times the sum of remaining even ordinates. The average end area method of computing volumes is entirely valid only when the area of the. Multiply to this total sum by rd of the common distance between the ordinates which gives the required area. These surveys are of high precision and extend over large areas.
In this 1st video, we are going to calculate area and volume, we hope this will help you to understand more about engineering surveying. Students will be explained the types of equipment used for land surveying. Click on new button and select layer 1 and layer 2 data and click on save similarly, add multiple layers for area and volume calculation. The first volume covers in 24 chapters, the most common surveying operations. Earthworks areas and volumes of earthworks distribution analysis haql and mass diagram route surveying definition route surveying is a survey which supplies data necessary to determine the alignment, grades, and earthworks quantities necessary for the location and construction of engineering projects. Leave all of the options toggled off for now using the tree structure, look at the other options in the cross section dialog apply and identify a clear area in your design file. Surveying lec 20u8 contouring, area and volume by bharat kumar mahawar duration. It is the art of measuring horizontal and vertical distances between objects, of measuring angles between lines, of determining the direction of lines, and of establishing points by predetermined angular and linear measurements. Chooses appropriate units of measurement for area and volume and converts from one unit to another. Calculate area of land and volume for surveying in civil. In surveying, the most commonly used units define quantities of length or distance, area, volume, and horizontal or vertical angles. The main objective of the surveying is to compute the areas and volumes. In surveying, area means the area of a tract of land as projected upon horizontal plane not actual area of the tract area of a tract with straight irregular bounddaries 1.
Perimeter, area and volume of regular shapes worksheet 2 calculate the shaded area of the following shapes 1. We also will not be using the grid factor, so press dont use f2. From the plans, sections, and maps prepared by surveying, the area and volume of a particular plot of land can be calculated. Introduction calculation for areas and volumes for earthworks, cuttings, embankments etc. Separate chapters have been written on underground surveys and computer programs in surveying to incorporate the recent developments in this field.
Traffic volume study definition, methods and importance. Generally, it is very difficult to determine the area of irregular plot. It is defined as the procedure to determine mainly volume of traffic moving on the roads at a particular section during a particular time. The end areas shown on the sections were computed by a method described in the volume measurements section. Land survey, ramsay the volume of the dam wall and the amount of cut may be obtained from the contour lines by calculating the volume of ground within the working area down to a common level surface and then calculating the new volume from the formation contour lines, the difference being the change in volume due to the works.
A rivet has a hemispherical head 6mm radius and a stem of 6mm diameter and 15mm length. Calculation of areas and volumes using the trapezoidal rule 4. The sum of the areas of the three triangles is the area of the given field. If one endarea has a value of zero, the earthwork volume is then similar to the volume of a. Measurement length, area and volume home calculate. People credited with this unit standard are able to. The essential parts of planimeter and its working is. The first volume focuses on both the theoretical concepts and their practical applications. Simple surveying tasks 26 aligning from the midpoint 26 measuring slopes 27 measuring rightangles 28 applications programs 29 calculating areas 29 staking out 30 remote heights 31 tie distances 32 freestation surveys 33 the applications. At a later stage, surveying techniques are used in the dimensional control or setting out of the designed constructional elements and also in the monitoring of deformation movements.
Planimeter is an instrument used in surveying to compute the area of any given plan. Title calculate areas, contours, and volumes for survey. The volume of a prism is the product of the area of one base b multiplied by the perpendicular distance h between the two bases. Each topic introduced is thoroughly described, the theory is rigorously developed, and a large number. For many of these construction projects, the surveyor is required to set out the extent of excavation. Volume f10 revised march, 20 this formula is considered exact only if the end areas a 1 and a 2 are equal. Planimeter only needs plan drawn on the sheet to calculate area. When you select a location with the, you are giving it the lower left corner of the first section. Punmia, ashok kumar jain, arun kumar jain surveying vol. Toll plazas are now a day constructed for the collection of revenue from the road users.
Divide area into three triangles ade, abd and bcd by joining ad and bd. Introduction to area and volume computation in surveying 2. Calculation of areas and volumes using the simpsons method 5. Area and volume free download as powerpoint presentation. A cylinder is a threedimensional geometric figure enclosed by a curvilinear surface and two parallel planes. Computation of volume by trapezoidal and prismoidal formula 3. A map represents the horizontal projection of the area surveyed and not the actual area.
It states that, sum of first and last ordinates has to be done. Methods for calculation of areas in surveying average. Recognises that the conversion factors for area of units are the squares of those for the corresponding linear units and for volume, units are the cubes of those for the corresponding linear units. The term traffic volume study can be termed as traffic flow survey or simply the traffic survey. The type of surveying that takes into account the true shape of the earth. Select the spreadsheet or pdf option as you need output. Classification based on the surface and the area surveyed i land survey land surveys are done for objects on the surface of the earth. To know and understand the basic concepts of area and volume calculation specific objectives. Part 645 national engineering handbook construction surveying and quantity computations chapter 5 5ii 210vineh, amend. This includes the equipment used for angle measurement, height measurement, distance measurement and area measurement. Press the menu key and p v f4 to get to the programs f1 option. If the depth of excavation at the centre lines of the two sections 50m apart are 1.
Appendix f volume wyoming department of transportation. Measurement magnitudes of measurements are typically given in terms of a specific unit. Area calculation by trapezoidal method is first done for each section. A cylinder whose cross section is an ellipse is referred to as an elliptic cylinder. The above formula gives the general case for volume computation, where a and a are the end areas of two adjacent stations, and l is the distance feet between the stations. Before any engineering work can be started we must prepare a plan or map of the area showing topographical details. Created by the best teachers and used by over 51,00,000 students. Generally, the lands will be of irregular shaped polygons. The two systems used for specifying units of measure are the english and metric systems. Chapter 5 construction surveying and quantity computations. Area calculation results are then considered for volume computation quantity takeoff. Civilax based to server in civil engineering provides etabs and sap2000 tutorials, civil engineering spreadsheets, civil engineering ebooks and many more civil engineering downloads. Engineering survey c 2005 2 area and volume objectives general objective. June 2012 introduction most people have an understanding that surveying is only restricted to field work on construction sites.
Arthur r benton and philip j taety, elements of plane surveying, mcgraw hill 2000. Syllabus area of a irregular figure by trapezoidal rule, midordinate rule, average ordinate rule, simpsons rule, various coordinate methods, planimeter. We will use the measurement option, therefore press yes f2. Explain the basic concept of area and volume method. However, it is only an approximation if the end areas are not equal. Free civil engineering tutorial learn surveying for beginner. So, by using planimeter we can easily calculate the area of any shape. This volume is one of the two which offer a comprehensive course in those parts of theory and practice of plane and geodetic surveying that are most commonly used by civil engineers. The type of surveying in which the mean surface of the earth is considered as a plane, or in which its spheroidal shape is neglected, with regard to. Title calculate areas, contours, and volumes for survey purposes level 3 credits 8 purpose this unit standard is for people working, or who intend to work, in the surveying profession as a survey technician. Introduction regular areas irregular areas volume mass haul diagram. Types of surveying on the basis of whether the curvature of the earth is taken into account or not,surveying can be divided into two main categories. When volumes are computed along a curved base survey line, some error will be introduced unless the center of gravity of the cross sectional area lies. What is the volume of earthwork between these two stations, in cubic yards, using the average end area method.
Generalized depiction of average end area, tin, and binned volume computation methods 153. The answer in cubic feet is divided by 27 to give the answer in cubic yards. Procedure in operating surveying equipment, interpreting the surveying data result and the method in calculating the measurement are also explained. Click on area or volume button to generate the reports in different worksheets. This document is highly rated by agricultural engineering students and has been viewed 1429 times. This is for depicting the hills, valleys, mountains, rivers, etc and manmade features roads, houses, settlements on the surface of the earth. Chapter 15 dredge measurement and payment volume computations. The parallel planes, or bases, may be circular or elliptical in shape. Surveying also includes the technique of establishing points by predetermined angular and linear measurements. In engineering surveying, either or both of the above formats may be utilized in the planning, design and construction of works, both on the surface and underground. Methods of calculation of areas in surveying simpsons. This textbook is one of the important book for civil engineering students.