crosssection leveling. a field procedure for obtaining relatively short profile views of the ground, perpendicular to the main route centerline. cubit. an ancient unit for distance measurement, equal to the length of a human forearm . curb return. the circular arc formed by a curb at a street intersection. cut and fill. in earthwork, excavation and embankment sections .
CrossSection Leveling . Crosssection leveling is usually done with a hand level after the profile run has been made. The method is as follows: From the profile run, you know the centerline elevation at each station. Suppose you want to take crosssection elevations at 10 ft intervals for 40 ft on either side of the center lineProfile Levelling Longitudinal and Cross .
CrossSection Instructions 1. Setup the surveying instrument in a loion where the entire crosssection can be viewed. The instrument should be placed at an elevation higher than the highest feature required for the survey. Ideally, only one instrument setup will be required to survey the entire crosssection; however,
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Transcribed image text: 2 Using the plate for the CrossSection Leveling of the HonoluluKailua Highway 1. Draw, nottoscale, the cross section at station 3+00 2. If the sight at station 200 was instead of ft, what would the elevation at 30 ft to the left of the center line be at this station? CROSSSECTION LEVELING siant Sta. Sight Elev. HONOLULUKAILUA .
Excavate over site to reduced level. [m3] A 100m road is to be built on hill slope by cut and fill excavation. By referring to the drawings (Fig A), takeoff the quantities for excavation and filling. Calculations: Two lane road – x 2 = wide. Add 500mm wide paved shoulders (sidewalks) on both sides – x 2 = Total width of road = + 1 = Cut Area: .
Study Topic 5: Leveling, Profiles, And Cross Sections flashcards from Whitney Briggs's class online, or in Brainscape's iPhone or Android app. Learn faster with spaced repetition.
Cross section drawings show views of the home as though you had sliced down through the house from the top with a saw and looked in from the resulting opening. This view will help the builder better understand your interior and exterior construction details. The more complex the home design, the more cross sections you should provide. These drawings are used to show .
For cross Sectioning: While profile leveling is in progress, crosssectional leveling should also be done. The crosssections are taken perpendicular to the Centre line of the alignment at some regular intervals (say 20m, 40m etc). The purpose of crosssectional leveling is to know the undulation of the ground surface transverse to the centre of the road.
CrossSection Leveling Figure 1418 —Using angle prism for sighting 90° from the centerline stak CrossSection Leveling In profile leveling, you determine the elevations of a series of points lengthwise along a highway In crosssection leveling, you determine the elevations of points on a succession of lines running at right angles to the lengthwise line of the highway.
· In reciprocal leveling, the level is set up on the both banks of the river or valley and two sets of staff readings are taken by holding the staff on both banks. In this case, it is found that the errors are completely eliminated and true difference of level is equal to the mean of the true apparent differences of level. Procedure [1]. Suppose A and B are two points on the opposite .
· How can I turn ON/OFF a level and have the change reflected to all my cross section sheets? By defining the configuration variable "MS_LEVEL_DO_NOT_OVERRIDE_DESIGN_LEVELS_IN_SHEET = 1", any levels that are turned ON/OFF in the 3D Model will also be turned ON/OFF in the cross section drawing and .
This procedure is especially helpful when plotting profile grades at intersections, railroad crossings, bridge approaches, wedge levels, etc. Cross sections are plotted on special grid or cross section paper (Figure 55) which is printed in various grid sizes. Figure 55. Profile VERTICAL SECTIONS Vertical sections (Figure 56) are straight up and down or 90° from .
• The reduced levels of equidistant point on the crosssection may be obtained by either with a level, a hand level, an Abney lever (or a theodolite). Crosssection Profiling (Crosssectioning) CrossSectioning with a level • Initially, a line perpendicular to, and on either side of the centre line at the desired station on the centre line in section, is setout.
A level survey has been carried during a road construction. The data recorded is shown in the table below, with all readings in metres. The chainage (CH) of the points is also given (distance from beginning). a) Reduce the data using either the Rise and Fall or the Height of Plane of Collimation (HPC) method. Use simple arithmetic checks to support your answer. b) Plot the .
FIELD PROCEDURE: CROSS SECTION SURVEY clallamIn this procedure, you will survey the stream channel cross section with a series of measurements along a permanentlyestablished line The data you gather will be entered into a computer database that can generate a graph of the cross section and calculate the degree of change in the crosssection "footprint" over .
· 3. Leveling staff. The one of the main instrument used in levelling is levelling staff. The leveling staff is a box section of aluminum or wood, which will extend to 3 or 5 m in height by telescoping, hinging or addition of sections. One face has a graduated scale attached for reading with the crosshairs of the level telescope. 4. Staff bubbles.
· The cross section method involves plotting cross sections of the existing and proposed levels at regular intervals across the project site. For each of the cross sections, the cut area and the fill area is determined. The volume between each pair of sections is estimated by multiplying the average cut or fill area of the two sections by the distance between them. Once these volumes have been ...
FIELD PROCEDURE: CROSS SECTION SURVEY clallamIn this procedure, you will survey the stream channel cross section with a series of measurements along a permanentlyestablished line The data you gather will be entered into a computer database that can generate a graph of the cross section and calculate the degree of change in the crosssection "footprint" over timePROFILE LEVELING .
cross section leveling procedure alsdseu cross section leveling a field procedure for obtaining relatively short profile views of the ground perpendicular to the main route centerline for precise leveling surveys a procedure that makes use of the central and stadia cross hairs; the three readings are averaged tilting level ...
CrossSection Leveling : Profile Leveling. In surveying, a PROFILE is a vertical section of the earth measured along a predetermined or fixed line. In practice, profiles are a series of ground elevations determined by differential leveling or other methods that, when plotted along. Figure 1416.Plotted profile and grade lines along a proposed road center line. Figure 1417.Field .
· Section 2: Differential Leveling, crosssections,, is out of adjustment and are an especially necessary procedure when . Lab4 Lecture4 Prof leveling Memorial University, Mark out the reference line at 10 m wide cross section, 10 m Lab Procedure Setup the instrument 40 to 50 m from your, Lab4_Lecture4_Prof_levelingppt
