Jiahui's patented production of pressure-bearing expanded anchors and anti-floating anchors

Pressure-bearing expanded anchors
Pressure-bearing expanded anchors
Anchor technology is widely used in high-rise buildings, rail transit, bridge and tunnel projects, urban underground transportation, hubs, ports and terminals, high reservoir dams, and slopes It has a wide range of applications in engineering, mining construction, national defense engineering and other fields.
Application fields of pressure-bearing expanded anchors
Advantages of new expanded anchors
The most significant difference between new expanded anchors and traditional soil anchors lies in the form of the anchoring sections. difference. Traditional anchors rely on the bonding force and friction effect of the soil around the anchor section to transmit force loads, so the size of the anchoring force depends on the length of the effective anchor section, while the expansion of anchor rods with bladder expansion agents mainly relies on the expansion of the expansion agent. The end pressure acts on the load, and the anchoring force mainly depends on the end bearing area of the expansion agent expansion body. Therefore, the length of the expansion agent expansion body only needs to meet the requirements for effective compaction of the soil, and the length of the anchor section can be shortened. .
Technical differences between traditional tension type anchors and new pressure-bearing anchors
Traditional tension type anchors and new pressure-bearing expanded anchors
Anchor section length-
Anchor section Diameter -
Quality control of grouting stone body The compressive strength of the stone body is less than that of the stone body, and it is easy to contain mud and the pores are unevenly distributed. The compressive strength of the stone body is greater than 3, and pressurized perfusion of the bag can ensure that the stone body is uniform and dense.
The construction quality of the anchor bundle body and the anti-corrosion tension type anchor are not conducive to long-term anti-corrosion. The anchor bundle body is not easy to center and the reinforcement is easy to corrode. The pressure-type anchor has reasonable stress, which is conducive to the anti-corrosion of the anchor. The anchor bundle body is centered and protected by multiple protection and anti-corrosion technologies.
Construction efficiency and construction period Anchors need to be made on site, the grouting setting time is long, and the tension locking construction is slow. The anchoring sections are made in the factory and are directly assembled into expanded anchors after being transported to the construction site. The specially formulated expansion material solidifies quickly and can be tensioned in a short time.
Economic and environmentally friendly features: It is difficult to control the construction quality. There are many anchor rods, the rod body is long, and the bearing capacity of a single anchor is low. The construction quality is reliable, the single anchor bearing capacity is high, the length is short, the quantity is small, and the economic and environmental benefits are high.
Characteristics and technical features of pressure-bearing expanded anchors
As an anti-floating structure, the anchoring section of the expanded anchor is deeply buried and is set in the soil layer of the chamber. The bladder-type expanded anchor The poles have high load-bearing capacity, and the construction equipment and technology are advanced and the construction quality is reliable.
, Safety
This technology is a technical upgrade of the European jet-blasted expanded anchor. It not only retains the characteristics of the original technology, but also improves its shortcomings, improving the reliability of the technology. and security.
Durability
As a pressure-bearing expanded anchor, it can effectively avoid the corrosion hazards caused by tensile cracking of tension anchors. The bladder protection technology can effectively position the expanded section of the anchor. , the thickness of the protective layer is increased, and the multiple anti-corrosion functions can effectively resist the corrosion of corrosive groundwater and soil on the steel strands, ensuring the durability of the anti-floating structure.
Economical
The bladder grouting produces a swelling and squeezing effect on the soil in the expansion section, which can improve the load-bearing performance of the soil and significantly increase the bearing capacity of the expansion anchor, thus saving project costs. -
Environmental protection
The amount of soil replaced when forming holes for anchor rods is much less than that of forming holes for grouting piles, which avoids the transportation of waste mud and waste soil, effectively reduces pollution, facilitates on-site management, and improves environmental benefits.
, High efficiency
Using tower-type or long-arm professional rotary spray machines for operation, the construction speed of a single unit is fast and can effectively shorten the construction period.