Ningbo Observation Standard Observation Pile Observation Point Distributor

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　　The frequency and time of settlement observation should be in accordance with the design requirements. Generally, the observation should be carried out in a timely manner after the observation point is securely installed. Civil buildings should be observed once every additional floor, while industrial buildings should be observed separately at different load stages; The settlement observation conducted by the construction unit during the construction period shall not be less than 4 times. The observation frequency after the completion of all buildings and structures is 4 times per year, 2 times per year in the second year, and 1 time per year after the third year, until the settlement stabilizes (determined by the relationship curve between settlement and time). The observation period is generally 2 years for sandy soil foundation, 5 years for cohesive soil foundation, and 10 years for soft soil foundation. When buildings and structures suddenly experience significant settlement, uneven settlement, or severe cracks, continuous observations should be conducted daily or every few days, and cracks should also be observed. Since December 2021, the enthusiasm of domestic steel production enterprises to increase production has been strengthened due to the joint impact of policies to ensure supply and stabilize prices, the recovery of off-season demand, and the phased resumption of production. According to data from the National Bureau of Statistics, in December 2021, crude steel production was 86.19 million tons, a year-on-year decrease of 6.8%; The production of pig iron was 72.1 million tons, a year-on-year decrease of 5.4%; The steel production was 113.55 million tons, a year-on-year decrease of 5.2%. From January to December 2021, crude steel production was 1032.79 million tons, a year-on-year decrease of 3.0%; The production of pig iron was 86.857 million tons, a year-on-year decrease of 4.3%; The steel production reached 1336.67 million tons, a year-on-year increase of 0.6%.

　　At the end of last year, the daily crude steel production showed a significant rebound compared to the previous period

　　In December 2021, the daily average production of crude steel, pig iron, and steel all showed a significant rebound compared to the previous month. According to data from the National Bureau of Statistics, in December 2021, the daily average crude steel production in China was 2.78 million tons, an increase of 20.3% compared to the previous month; The daily production of pig iron is 2.326 million tons, an increase of 13.0% compared to the previous period; The daily average production of steel was 3.663 million tons, an increase of 8.8% compared to the previous period.

　　Based on the monthly crude steel production for the entire year of 2021, the average monthly crude steel production was 2.825 million tons, which is lower than the same period in 2020 but higher than the same period in 2019; The monthly crude steel production for the whole year was 326.2 in April and 230.9 in October. Therefore, it can be seen that the release and reduction of domestic steel production capacity in 2021 are higher than in previous years.

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