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Anchor construction is a common underground engineering construction technology designed to strengthen the support and stability of soil or rock. Most of what we call anchors refer to tension members deep in the soil or rock formations.

There are many types of anchors, including ordinary steel anchors, prestressed steel anchors, friction anchors, full-length adhesive anchors, hollow anchors, self-drilling anchors, etc. Anchor rods generally consist of anchor heads, free sections and anchoring sections. The anchoring section uses cement slurry or cement mortar to connect the rod body and the soil body to form the anchor body of the anchor rod. The construction is carried out according to the process of positioning, drilling rig in place, hole forming and cleaning, rod body placement, grouting, and test testing. construction. .

This article will introduce several common anchor construction methods.

1.Construction method of steel anchors

Rebar anchor is a commonly used anchor material, and its construction method is relatively simple. First, install the anchor rod in the borehole according to the design requirements. Typically, drilling is performed using tools such as mechanical drilling or hydraulic drilling. The anchors are then inserted into the drilled holes and secured using special mortar grout. Finally, connect the steel bars to the embedded objects and complete the fixation of the anchor rods.

2. Prestressed anchor construction method

Prestressed anchors are suitable for underground projects that need to withstand larger loads. Prestressed anchors increase the tensile capacity of the rod by applying prestress during the construction process. First, the prestressed anchor pipe is installed in the drilled hole; then, the embedded steel beam is inserted into the anchor pipe, and the prestressed force is applied through the tensioning device; finally, the anchor hole is filled with special mortar and the anchor rod is fixed.

3. Construction method of cemented anchors

Cemented anchors are suitable for the reinforcement of weakly consolidated soil or soft rock. First, place anchor rods in the boreholes according to design requirements. Drilling is usually performed using mud drilling or drilling machines. The cementitious material is then poured into the drilled holes and solidified. Finally, the anchor rod is connected to the solid cement and consolidated.

4. Construction method of micro steel sheet piles

Micro steel sheet piles are a variant of steel sheet piles and are widely used for slope reinforcement and foundation pit support. First, holes are drilled into the soil and micro-sheet piles are mechanically inserted into the holes. Then, connect the connectors on top of the micro steel sheet piles so that the steel sheet piles form a continuous wall. Finally, concrete is injected into the steel sheet piles through directional drilling to ensure their stability and strength.

Summarize

According to different soil conditions and engineering requirements, different methods can be used for anchor construction. As a professional anchoring support expert, Jiufu can provide you with professional anchoring solutions. If you have any needs or questions about self-drilling anchoring systems and their applications, please feel free to contact us: www.jfrockbolt.com.