There are two possible designs for the placement of the 3000m obstacle pool: one inside the running track and the other outside. However, the most critical factor is that the pool must be located in the adjusted track area. If the obstacle pool is placed incorrectly outside the designated track area, even a small error of just 5cm can cause serious issues. Such inaccuracies prevent proper verification of competition performance and may lead to the entire site being deemed invalid. In such cases, reconstruction becomes necessary. For instance, at an official track and field facility in Beijing, the obstacle pool was found to be 20cm off its intended position. After careful review by the referee team and coaching staff, a decision was made to rebuild the area.
There are several methods to accurately position the obstacle pool. Based on the site's axis, we use the horizontal and vertical coordinate method for measurement and then retest using the central angle method. Below is an example of how the obstacle pool is set up.
Starting from the longitudinal axis of the track, we measure the straight-line distances Q1A1 and Q1B1 from the centerline Q1 to determine points A1 and B1. From each of these points, we then measure perpendicular distances (A1A and B1B) to locate points A and B. Similarly, we move along the same direction to find points C and D for the obstacle pool. All these measurements are based on the original design drawings. To ensure precision, a double-check calibration is essential. One effective way to verify the accuracy is through the central angle method. This involves setting up a theodolite at the center point Q1 and aligning it with the central point O of the field. The mirror is then positioned to check the angles and ensure everything is correctly aligned.
There are several methods to accurately position the obstacle pool. Based on the site's axis, we use the horizontal and vertical coordinate method for measurement and then retest using the central angle method. Below is an example of how the obstacle pool is set up.
Starting from the longitudinal axis of the track, we measure the straight-line distances Q1A1 and Q1B1 from the centerline Q1 to determine points A1 and B1. From each of these points, we then measure perpendicular distances (A1A and B1B) to locate points A and B. Similarly, we move along the same direction to find points C and D for the obstacle pool. All these measurements are based on the original design drawings. To ensure precision, a double-check calibration is essential. One effective way to verify the accuracy is through the central angle method. This involves setting up a theodolite at the center point Q1 and aligning it with the central point O of the field. The mirror is then positioned to check the angles and ensure everything is correctly aligned.H-D-Gln-OH,5959-95-5
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