Answered: Q3/A levelling survey was done for a…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Concept explainers

Question

100%

$**Levelling Survey Analysis for Station A** **Objective:** A levelling survey was conducted for a project at station A to draw the cross section. The design level was 28 meters. Below are the tasks and data provided for analysis: 1. **Calculate Elevation for Each Point:** - Using the given levelling data and the benchmark (B.M.) elevation of 26.5 meters, calculate the elevation for each point. 2. **Draw the Cross Section:** - Use the scale of 1:200 to accurately draw the cross section based on calculated elevations. 3. **Calculate Heights of Each Point:** - Determine the height of each survey point from the data. **Data Table:** - **Columns:** - Description (Points) - Levelling Readings (B.S., I.S., F.S.) - **Rows:** - B.M. - B.S: 1.60 m - Point A - Chainage 0.0, L.R. 3.0, F.S. 1.92 m - Chainage 3.0, L.R. 6.0, F.S. 1.99 m - Chainage 6.0, L.R. 9.0, F.S. 1.85 m - Chainage 9.0, L.R. 3.0, F.S. 1.94 m - Chainage 12.0, L.R. 0.0, F.S. 2.03 m **Visual Representation:** The diagram in the image is a simple tabular form showing the stations and the corresponding Back Sight (B.S.), Fore Sight (F.S.), and Chainage values. This data helps map the terrain profile by calculating each point's elevation and subsequently drawing the cross section to scale. **Instructions for Calculating Elevations:** - **Elevation at BM:** Use the B.S. to calculate the initial elevation: \[ \text{Elevation}_{\text{B.M.}} = \text{Benchmark Elevation} + \text{B.S.} = 26.5 + 1.60 = 28.10 \, \text{m} \] - **Points Elevation Calculation:** Subtract the Fore Sight reading from the calculated Bench Mark elevation$

Transcribed Image Text:**Levelling Survey Analysis for Station A** **Objective:** A levelling survey was conducted for a project at station A to draw the cross section. The design level was 28 meters. Below are the tasks and data provided for analysis: 1. **Calculate Elevation for Each Point:** - Using the given levelling data and the benchmark (B.M.) elevation of 26.5 meters, calculate the elevation for each point. 2. **Draw the Cross Section:** - Use the scale of 1:200 to accurately draw the cross section based on calculated elevations. 3. **Calculate Heights of Each Point:** - Determine the height of each survey point from the data. **Data Table:** - **Columns:** - Description (Points) - Levelling Readings (B.S., I.S., F.S.) - **Rows:** - B.M. - B.S: 1.60 m - Point A - Chainage 0.0, L.R. 3.0, F.S. 1.92 m - Chainage 3.0, L.R. 6.0, F.S. 1.99 m - Chainage 6.0, L.R. 9.0, F.S. 1.85 m - Chainage 9.0, L.R. 3.0, F.S. 1.94 m - Chainage 12.0, L.R. 0.0, F.S. 2.03 m **Visual Representation:** The diagram in the image is a simple tabular form showing the stations and the corresponding Back Sight (B.S.), Fore Sight (F.S.), and Chainage values. This data helps map the terrain profile by calculating each point's elevation and subsequently drawing the cross section to scale. **Instructions for Calculating Elevations:** - **Elevation at BM:** Use the B.S. to calculate the initial elevation: \[ \text{Elevation}_{\text{B.M.}} = \text{Benchmark Elevation} + \text{B.S.} = 26.5 + 1.60 = 28.10 \, \text{m} \] - **Points Elevation Calculation:** Subtract the Fore Sight reading from the calculated Bench Mark elevation

Expert Solution

Step by step

Solved in 5 steps with 5 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions