High-strength bolt, hollow grouting anchor, etc.

As the bolt into the formation of the tension member, which connects with the engineering structures and the other end into the formation, the entire root and anchor bolt into free section segments free section refers to the tension bolt head at the spread anchor The region, its function is to anchor prestressed; anchoring section refers to cement paste will Tendons and soil bonded area, its function is to bond anchor and soil friction increases, increase Pressure anchor role, the tension spread to the depths of the free section of soil. According to the above definition, given the basic structure of the bolt. Bolt is the rock and soil reinforcement rods architecture. By longitudinal tension rod bolt action, to overcome the shortcomings of rock and soil compression tensile strength is far below capacity. Ostensibly limits of rock and soil from the original body. Macroscopically increase the cohesiveness of rock and soil. From the mechanical point of view it is mainly to improve the cohesion C and internal friction angle φ surrounding rock. Which essentially bolt located geotechnical rock formation in vivo and in a new complex. The complex is a key anchor in rock mass of low tensile strength solution. So that the rock mass greatly enhance the carrying capacity of their own. Bolt is the most basic part of the mine roadway support among contemporary underground mining, he would rock entry bound together to make surrounding rock support itself. Now not only anchors used in mining, but also for engineering and technology in the slope, tunnels, dams and other proactive reinforcement. Bolt many types of products, new and old customers to inquire understanding. Ordinary hollow grouting anchor the anchor head, hollow threaded bolt body, only the pulp plug, plate and nut and other components, each of its members is to ensure maximum grouting mortar filling full, dense, mortar can penetrate into the surrounding rock cracks under the pressure of up to tens of kilograms, and can be easily mounted plate and nut. I. Features: 1. hollow design, the bolt to achieve a grouting tube function, to avoid the traditional mortar grouting construction process due to the loss of the tube pulled. 2. The full grouting, pressure grouting can achieve, improve project quality. 3. As the role of the various parts of the center rod is very good, the mortar can be the full length of bolt body wrap, to avoid the risk of corrosion, achieve long-term support purposes. 4. Easy installation, no on-site processing thread, you can easily install plate and nut. 5. The combination of supporting special injection pump and bolt grouting technology, is the only complete solution to the traditional problems of anchorage support anchorage system. Second, the construction method: mainly used in geological conditions of moderate good support system surrounding rock. 1) Drilling: drilling and by conventional rock drill hole cleaning. 2) Insert the bolt: the installed anchor head hollow grouting anchor insertion holes. 3) Install the slurry stopper, plate and nut: install the exhaust pipe according to rock conditions. 4) Connect grouting machine: grouting will anchor the tail end, and selected grouting machine connection. 5) grouting: grouting start the machine, such as the need for improved pressure grouting surrounding rock structure, the need to be raised to the design pressure gauge pointer can. Luoyang Rock Engineering Technology Co., Ltd. Address: China's Luoyang City, Henan Province Taikang Road Luolong gold Walled City Street intersection Tel: 15139973087/15838868783 director Zhang