Supply of settlement monitoring piles for settlement observation points of Jiayuguan settlement observation target

Description :

　　Supply of settlement monitoring piles for settlement observation points of Jiayuguan settlement observation target

　　Observation period

　　General buildings can be observed after the foundation is completed or the basement is built, while large and high-rise buildings can be observed after the foundation cushion or foundation bottom is completed. 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 uniformly raised, it should be observed at least once when the load is increased by 25%, 50%, 75%, and 100%. If the construction process is temporarily suspended, observation should be conducted once during the suspension and once again during the resumption of work. If there is a sudden increase or decrease in ground load near the foundation, a large amount of water collection 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. If the settlement is still unstable after the completion of the building, observation should continue during the use phase. Judgment of settlement stability: In general observation projects, if the settlement rate is less than 0.01-0.04mm/day, it can be considered that the settlement stability stage has been entered.

　　At the press conference on the "14th Five Year Plan for the Development of Raw Material Industry" held on December 29, 2021, Chen Kelong, Director General of the Raw Material Industry Department of the Ministry of Industry and Information Technology, clearly pointed out that during the 14th Five Year Plan period, the production capacity of key raw material products such as crude steel and cement will only decrease without increasing, and the utilization rate of production capacity will remain at a reasonable level; Form more than 5 advanced manufacturing clusters in the field of raw materials; Encourage regions with conditions to promote the coupling development of industries such as petrochemicals, steel, non-ferrous metals, building materials, and electricity, establish coupling development parks for raw material industries, and achieve the cascading utilization of energy resources and industrial circulation connection.

　　In addition, in the past two years, local steel companies in Shaanxi and steel companies in Shanxi have made significant breakthroughs in product diversification. For example, in the past year, the production of strip steel and industrial materials by Shaanxi Iron and Steel has significantly increased, while the production of construction steel has relatively decreased. Steel companies in Shanxi have also begun to shift their focus towards industrial materials, profiles, and plates, which has affected the supply of construction steel.

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• Jiayuguan settlement observation mark