Vad är konstruktionsprocessen för ihålig injekteringsförankringsstång?

Borrhål
(1) The opening of prestressed anchor bolt holes shall be carried out according to the drilling positions arranged in the construction drawings. If the top of the hole is higher than the hole position, a steel pipe scaffolding operation platform must be erected, and the holes shall be drilled with a pneumatic drill bit and thoroughly cleaned. The depth and diameter of the borehole shall not be less än designvärdet, och lutningen och azimuten av borrhålen ska uppfylla designkraven .

Ankare stavinstallation
After the drilling is completed, the anchor rod installation shall be carried out after passing the inspection. The length of a single anchor rod should be 50cm longer than the thickness of the rock and the thickness of the sprayed concrete on both sides in the design, with reserved installation anchor pads and tensioning length. Due to limited workspace on the construction site, some of the excessively long staggered poles bör delas upp i flera sektioner för bearbetning och anslutning och installerad med anslutningshylsor . Därför bör installationens utrymmesstorlek i olika positioner vid olika positioner bör övervägas för att korrekt bestämma den segmenterade längden på förankringsstänger

After the installation of the anchor rod, the hole opening is leveled with dry and hard pre shrinkage mortar, and then a qualified cushion plate, nut, and grout stopper are installed to complete the anchoring process. After passing the inspection of the supervisor, a torque wrench is used to directly tension to the design tonnage in one go.

After the prestressed anchor rod is tensioned, immediately use the reserved grouting port to inject grout into the anchor rod. The grout used is cement mortar, with a mix ratio of cement: grouting agent: water=1:0.01:0.38 (1) Inject grout through one end and discharge grout through the other end.