Metro construction ground settlement monitoring point burying method
A technology for surface subsidence and monitoring points, which is used in measurement devices, mapping and navigation, height/level measurement, etc., can solve the problems of difficult core drilling, pedestrian safety impact, and low work efficiency, achieving good results and reducing The degree of damage, the effect of improving efficiency
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[0032] A kind of embedding method used for subway construction surface settlement monitoring point of the present invention is described in detail in conjunction with accompanying drawing and specific embodiment in the present invention, as figure 1 As shown, the embedding method is as follows:
[0033] Step 1: Use a core drill with a diameter of 50-80mm to drill to the design depth to obtain a monitoring hole.
[0034] Step 2, pouring fine stone concrete 1 to the bottom of the monitoring hole; the height of pouring fine stone concrete 1 is 30-50mm.
[0035] Step 3: Insert a threaded steel bar 3 vertically along the central axis in the monitoring hole, the diameter of which can be selected as 18 mm; its bottom end is inserted into the fine stone concrete 1 with a depth of 30-40 mm; its top end is close to the monitoring hole The position of the orifice; the top of the threaded steel bar 3 is set as an upwardly protruding hemisphere 2, and the top of the hemisphere 2 is used t...
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