Backfill soil thickness control instrument and using method thereof
A technology for thickness control and backfilling, which is applied to instruments, measuring instruments, and mechanical thickness measurement. obvious effect
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[0021] Such as Figure 1-4 Shown: an instrument for controlling the thickness of backfill soil, which includes a scale rod 1 with a screw end, a fixing device, and a crosshair laser transmitter 5; The horizontal cylinder 3 and the vertical cylinder 4 at the end, the horizontal cylinder is provided with an alignment line 31 and a bolt hole 32 corresponding to the crosshair laser transmitter, and the crosshair laser transmitter is fixed in the horizontal cylinder; The vertical cylinder body is provided with a scale hole 41, and a scale rod with a helical end is fixed in the vertical cylinder body.
[0022] A method for using a backfill thickness control instrument, comprising the steps of:
[0023] Step 1: Drill the scale rod vertically into the soil layer until the zero scale line is flush with the surface of the soil layer;
[0024] Step 2: Fix the crosshair laser transmitter to the fixing device. There are alignment lines on the surface of the fixing device and the crosshai...
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