Pressure-bearing expanded anchor cable for anti-floating foundation pit construction special expanded anchor cable

Pressure-bearing expanded anchor cable
Pressure-bearing expanded anchor cable
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 anchor cables
Advantages of the new expanded anchor cable
The most significant difference between the new expanded anchor cable and the traditional soil anchor cable lies in the form of the anchoring section. difference. Traditional anchor cables 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 bladder-type expansion agent expanded anchor cable 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 Anchor Cable and New Pressure-bearing Type Anchor Cable
Traditional Tension Type Anchor Cable and New Pressure-bearing Expanded Anchor Cable
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 cable 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 cable has reasonable stress, which is conducive to the anti-corrosion of the anchor cable. The anchor beam 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 cables, the cable 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 the pressure-bearing expanded anchor cable
As an anti-floating structure, the anchoring section of the expanded anchor cable is buried deep and is set in the soil layer of the chamber. The bladder-type expanded anchor The cable bearing capacity is high, 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 cable. 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 cable, it can effectively avoid the corrosion hazards caused by tensile cracking of the tension anchor cable. The bladder protection technology can effectively position the anchor expanded section. , 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 expansion and compaction of the soil in the expansion section, which can improve the load-bearing performance of the soil and significantly increase the load-bearing capacity of the expansion anchor cable, thereby saving project costs. -
Environmental protection
The amount of replacement soil required to form holes for anchor cables is greatly reduced compared to 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.