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MIRA ultrasonic imager applied to Laohutan reservoir test in Huzhou, Zhejiang
Release time: 2020-01-14
I. Project Introduction
The floodgate of the Laohutan Reservoir is in the form of open surface holes, with a total of 3 holes. The clear width of each hole is 8.0m, and the elevation of the weir is 46.00m. Top curved steel gate.
Looking from the upstream to the downstream, the one on the left is called # 1 flood hole, the middle is called # 2 flood hole, and the right is called # 3 flood hole. As shown below:
Test situation of MIRA ultrasonic imager
        Scene picture on the left wall of # 1
        Picture of the upstream test of # 1
  Analysis of the results: There is a bottom wave reflection at the position of 40cm on the right side near the door slot, and a secondary casting surface of 40cm at the corresponding position; and there is no bottom wave reflection on the left side away from the door slot, which corresponds to 1.5m above the whole frame.
        # 1 Flood test hole left downstream test picture:
        Scene picture on the right wall of # 1

        Picture of the upstream test of # 1

        # 1 Flood test hole downstream right test picture:

        Scene picture on the left wall of # 2

        # 2Upstream test picture on the left of the flood hole:


  Analysis of the results: There is a bottom wave reflection at the position of 40cm on the right side near the door slot, and a secondary casting surface of 40cm at the corresponding position; and there is no bottom wave reflection on the left side away from the door slot, which corresponds to 1.5m above the whole frame.
        # 2 The test picture on the left downstream of the flood hole:

        Analysis of results: There is a short rebar-like object at the depth of 20cm on the right, which may be a short rebar or a horizontal defect.
        # 2

        Note: There is moss on the ground on the right downstream of # 2.
        # 2Right upstream test picture:

        Note: The direction of the upstream wall test on the right side of # 2 is: upstream to downstream, so the C-Scan screen is opposite to the live image.
        Results analysis: The bottom wave reflection at the right side near the door slot is obvious at 40cm, and the second casting surface at the corresponding position is 40cm; while the left side is far away from the door slot, there is no bottom wave reflection, which corresponds to more than 1.5m for one pouring Overall structure.
        # 3

        # 3Exhaust test picture on the left side of the flood hole:

        Note: The direction of the upstream wall test on the left side of # 3 is: downstream to upstream, so the C-Scan screen is opposite to the live image.
        Result analysis:
        # 3 test picture on the left downstream of the flood hole:

        Note: The direction of the downstream wall test on the left side of # 3 is: downstream to upstream, so the C-Scan screen is opposite to the scene image.
        Result analysis:
        # 3

        # 3Upstream test picture on the right side of the flood hole:

       
        Note: The direction of # 3 upstream wall test on the right side is: upstream to downstream, so the C-Scan screen is opposite to the direction of the live image.
        Result analysis:
        # 3 Flood test hole right downstream test picture:

        Note: The direction of # 3 downstream wall test on the right side is: upstream to downstream, so the C-Scan screen is opposite to the live image direction.
    Analysis of results: On the left side of the middle part, there is a short steel bar-like object at a depth of 28cm, which may be a short steel bar or a horizontal defect.
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