Introducing tunnel excavation support methods for preventing the collapse of the cutting edge and the expansion of looseness!
"Injection-type Forepolling" is an auxiliary excavation method that combines injection materials and bolt materials to perform pre-support and consolidation improvement of the ground. Its primary purpose is to prevent the collapse of the tunnel face and to stop the expansion of looseness during tunnel excavation. Please contact us if you require our services. 【Construction Method (Partial)】 < Hallow/FRP Bolt > ■1. Drilling ■2. Bolt insertion ■3. Mouth closure ■4. Injection *For more details, please refer to the PDF document or feel free to contact us.
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【Other Construction Methods】 <Self-Drilling Bolt> ■1. Self-Drilling Bolt Drilling ■2. Injection Adapter Attachment ■3. Mouth Closure ■4. Injection *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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