TAC Corporation is a Tunnel engineering Advanced Company. We are an industry renowned Backfill Grout Injection specialist with over 40 years of experience in providing tunnel engineering Total Solutions for Shield Construction engineering projects worldwide.

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  • About Backfill Grout Injection
  • Backfill Grout Injection Materials
  • Backfill Grouting Machinery
  • Simultaneous Injector Pipe
  • ETAC Construction Method
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  • About Additive Injection
  • Types and characteristics of Additives
  • Additive Injection Machinery
  • Additive Injection Test
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  • About Clay Shock Injection
  • Clay Shock Machinery
  • Sharp Curve Auxiliary Method
  • Clay Shock Injection Effect
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  • About Air Mortar
  • Characteristics of Air Mortar
  • FLOW Mortar Bag
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  • About Slurry
  • Types and Characteristics of Slurry Material
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  • Surplus soil solidified material
  • Turbid water treatment material