Technical measures of support and reinforcement commonly used outside excavation tunnel

News you may be interested in POPULAR INFORMATION

• What is a water reducer?

  2018-11-02Water reducing agentIt can reduce the water consumption of mixing and improve the strength of concrete under the conditio…

• The use of concrete accelerator

  2022-12-101. Concrete accelerator is a kind of surface active material, added to concrete, cement particles play a diffusion effect…

• What should we pay attention to when constructing powder accelerator?

  2022-12-101. Raw materials: Quality shall meet JC476-1998 standards, cement shall be qualified and unexpired Grade 32.5 (original 4…

• What are the commonly used support and reinforcement technical measures outside the dug tunnel

  2022-12-10Shoting-anchor excavation method refers to the construction method of tunnel construction by excavation of underground tu…