How to measure the construction progress rate of a selected area.

Introduction

This article provides a detailed explanation on how to measure the latest construction progress.

By comparing the base topography, current topography, and target shape, it is possible to determine the construction progress rate relative to the target shape.

feature

Calculation Area Definition:
The area for earthwork calculations is the area defined as the “Set as Target design” in the design data.

Basis of Volume Calculation:
Earthwork calculations determine the planned earthwork volumes (cut and fill) based on two sources: the design data and the survey data registered as the initial terrain.

The calculation method involves determining one representative point per 50cm mesh grid.

Once construction begins, the following quantities are computed:
- Remaining earthwork volumes (cut/fill) relative to the planned volumes
- Surplus volumes such as over-excavation and overfill, derived from comparing the initial terrain and the design surface
- Ideal Progress Indicators

As the site approaches completion, it is ideal to observe a reduction in both surplus volumes and remaining earthwork volumes. This indicates that the construction is progressing in alignment with the design specifications.

Calculation area
Calculation range is the area in the target data.
Calculate based on the Design data and the preconstruction data
The following results can be calculated.
Remaining（Cut・Fill）・Total（Cut・Fill）Over Volume （Over-Cut・Over-Fill）

Procedures and Explanation

1. Click on the 【"1" measurement icon】 in the side panel.

2. Select 【"2" Polygon 】 from the annotations.
Polygon: Measurement tool for a partial area


Left mouse click to enclose the desired area, right mouse click to exit and 【"1" Save.】
Click here to customize annotation information

3. Click 【"1" Add new measurement】 and select 【"2" Progress.】

4.  Confirm the 【"1" Initial, Current and Target.】

Calculation is performed based on the selected "Initial", "Current" and "Target".

5. Select 【"2" Heatmap or Classification】 for the displayed results

6. Click on 【"3" Calculate.】

Image of progress calculation

Supplementation

The calculation results will be reflected in the tab of the created polygon.

If the heat map is not displayed, click the "▶" button to display it.

When "Heatmap" is selected in the results display.
Visualize the progress rate against the target terrain and the reference terrain within the target area.

When "Classification" is selected in the result display

It is possible to classify according to the area of construction.
The planned amount of cut and fill can be classified only when the initial terrain is used as a reference.

Supplementation

If you would like to customize the threshold and color information of the measurement results, click here.

How to customize the annotation information

How to customize the measurement results