(2) When observing, the instrument should avoid being placed in the range affected by vibration such as air compressor, mixer and hoist. Construction machinery such as tower cranes should not be set near the station.
(3) Every observation shall record the construction progress, increased load, tonnage purchased by warehouse, building inclination, cracks and other conditions that affect the settlement change and abnormality.
Extended data
Strictly in accordance with the requirements of measurement specifications; It is best to use the same level for forward and backward observation; Each observation must be carried out according to a fixed observation route; Avoid direct sunlight during observation, and the observation environment is basically the same; Read again when the imaging is clear and stable; Observe at any time, check at any time and observe at the same time; Before and after the rainy season, joint survey should be carried out to check whether the elevation of leveling points has changed.
Feedback the observed settlement to relevant departments in time. When the continuous settlement of the building exceeds 65438±0mm every day (24h), the construction shall be stopped and emergency measures shall be taken jointly with relevant departments.
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