Wholesale price of Nanning settlement board is 500 yuan. Roadbed settlement board is now available for sale

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　　Wholesale price of Nanning settlement board is 500 yuan. Roadbed settlement board is now available for sale

　　The psychological price of winter storage in previous years was between 3700 yuan/ton and 3800 yuan/ton, which is still quite different from the current market price. The current high prices and uncertain trends determine that winter storage operations should be postponed at this stage. The winter storage window will only open when the mainstream price returns to around 4000 yuan/ton. Based on this, winter storage at the current stage should be carried out at the right time. Considering the reasons in Beijing, China's steel industry may face the longest and most severe production restriction in history in the first quarter of next year, and supply will significantly shrink after the Spring Festival. In addition, the recent continuous decline in steel prices, with a significant drop from the high point of the year, has provided unlimited imagination for the rebound of steel prices after the Spring Festival. It is important to note that blind betting on market trends should be avoided. On the one hand, with the combination of production restrictions and weak recovery in major steel industries such as real estate, the market may continue to have a weak supply-demand pattern after the Spring Festival, and steel prices will be more likely to move out of a "steady stream" trend, making it difficult to experience significant fluctuations. Traders need to be prepared for a 'protracted war' when shipping after winter storage. On the other hand, the government's regulation of prices is increasing day by day, and the short-term upward space for steel prices is limited. Therefore, there is significant uncertainty in the market price difference after winter storage, and the space for steel trading enterprises to profit from winter storage is relatively limited.

　　The number of observations and interval time should depend on the foundation and loading conditions. Civil buildings can be observed once every 1-5 floors of height increase; Industrial buildings can be observed separately according to different construction stages, such as backfilling foundation pits, installing columns and roof trusses, masonry walls, equipment installation, etc. If the building is uniform, it should be measured at least once when the load is increased by 25%, 50%, 75%, and so on. If the construction process is temporarily suspended, the settlement plate should be observed once during the suspension and once again when resuming work. During the shutdown period, observations can be made every 2-3 months.

　　2. The number of observations during the use phase of a building should depend on the type of foundation soil and the magnitude of settlement rate. Unless there are special requirements, in general, observations can be made 3-4 times a year, 2-3 times in the second year, and once a year after the third year until stability is achieved. The observation period is generally not less than the following regulations: 2 years for sandy soil foundation, 3 years for expansive soil foundation, 5 years for clay foundation, and 10 years for soft soil foundation.

　　3. During the observation process, if there is a sudden increase or decrease in ground load near the foundation, a large amount of water accumulation around the foundation, or prolonged continuous rainfall, the number of observations should be increased in a timely manner. When a building suddenly experiences significant settlement, uneven settlement, or severe cracks, continuous observations should be conducted immediately on a daily or daily basis.

　　4. Whether the settlement has entered a stable stage should be determined by the relationship curve between settlement amount and time. For key observation and scientific research observation projects, if the settlement in each of the last three observation cycles does not exceed twice the measurement error, it can be considered as entering the stable stage. In general observation engineering, if the settlement rate is less than 0.01-0.04mm/d, it can be considered to have entered the stable stage, and the specific value should be determined according to the compressibility of the foundation soil in each region.

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