Hollow anchor bar means a rod that transfers the structures or geotechnical load to a stable rock formations, anchor bolt consists of rod, drill bit, coupling, plate, grouting stopper and nut. Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It`s irreplaceable in narrow construction environment. Hollow anchor bar is made of seamless tube with high strength.
Threaded Anchor Bar, Anchor Bolt Threaded Bar Shandong Guanzhou Iron and Steel Group Co., Ltd , https://www.cnshansteel.com
The quality of the elastic sling installation instrument has a serious impact on the quality and safety of the railway transportation. Therefore, it is one of the core technologies of the catenary construction to rationalize the length of the pre-arranged sling and increase its calculation accuracy.
Elastic sling installation instrument features:
1. The elastic sling installation instrument is suitable for use in the installation of ropes in the electrified high-speed railway, power industry, ropeway transportation.
2, light weight (5kg), can be easily carried to the work site.
3, easy to operate, a person can operate at high altitude.
4, the instrument structure is simple and stable performance, high efficiency and durability.
5, easy to use, just zero when measuring force can be.
6, the use of scope: for 7.5mm elastic sling (copper wire); instrument accuracy: measurement accuracy within 2%.
7. Tension testing range 10-5000n.
8, installation sling diameter: 7.5mm-12mm.
10, display units: kg, Kn, kilograms and knives can be converted to each other.
Elastic sling installation instrument operation:
First, prefabricated 1, in the site material library by positive positioning, anti-positioning interception of elastic sling rope.
2. Make a mark in the middle of the elastic sling rope, and tape and tie the tip and mark.
Second, the initial installation of elastic slings 1, operating vehicles to the suspension point, raised the shelf 2, the center of the elastic sling temporarily fixed in the middle of the casing ring saddle.
3. Lay the elastic slings on the side of the anchors and fasten the load-bearing cables and the elastic slings together with the elastic sling clips.
4. From the hanging point to the compensating side of the load-bearing cable, place the elastic sling, tighten as much as possible, and use the clamp for temporary fastening. 5. The length of the elastic sling rope is required. 6. The length of the elastic sling is installed in the compensation. In the direction 7, the elastic sling clip long bolt is tightened on the field side 8 and the anchor cable clamp on the anchor side. 9. The auxiliary cable clamp on the compensation side only tightens the 2 diagonal bolts.
Flexible sling installation instrument operation
On the support hook, use a steel tape measure to accurately measure the distance between the sacral string and the center of the bearing cradle given by the construction table along the sling from the position of the hanging wire, mark it, and then install the sag to lift the string. Use a torque wrench at the mark of the elastic sling to fasten the clamps at the two ends of the sling.