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Expansion Shell Anchor Bolt
Expansion shell is an important part of expansion shell anchor bolt. expansion shell can provide prestressing to rock. It is very convenient and easy to install. It is suited temporary support and permanent support. It matches with domed plate, nut and domed washer. And they are suited for use in single or twin grout tube installation due to the minimal rotation the bar undergoes the setting process.
Expansion shells are used together with rock securing bolts, mounting bolts and combination bolts. It provides excellent grounding in hard and medium hard rock masses.
1.size:32mm, 35mm, 38mm, 42mm, 48mm
2.process:casting, forged, stamping, welding ,assembling
3.type: two leaves or three leaves
4.expansion shell include expansion shell anchor bolt, thread bar, anchor plate and nut.
Application
They are widely used in jet grouting, water well-drilling, tunnel, slope pre-support and control, mining, coast, building foundation, soil nailing, micropile, road reinforcement, water conservancy projects, geological faulty treatment, deep excavation,railway system, metro projects, etc.
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M16 Expansion Shell Rock Bolts
M16 Expansion Shell Rock Bolts are crucial elements in stabilizing rock formations in various industries, from mining to civil engineering.
They are used to reinforce and support rock structures to prevent them from collapsing or shifting, which can pose a serious threat to workers and structures.
There are several types of rock bolts, each designed for specific applications. Here are some common rock bolt applications and types you should know.
These rock bolts consist of a steel tube and an expansion shell that is inserted into a drilled hole in the rock. A cone-shaped wedging expansion shell is connected to the tube and expanded by using a mechanical tool or hydraulic pressure. This creates a compressive force that anchors the bolt into the rock, providing additional support and stability.
Ground Tunnelling Expansion Shell Rock Bolt
Ground Tunnelling Expansion Shell Rock Bolt is a kind of rod that is anchored in the rock mass.
The use of anchor bolt to support the roadway is to drill holes in the surrounding rock after the roadway is driven, and then install the anchor bolt in the eye to strengthen the surrounding rock of the roadway manually.
The anchor rod has many advantages: saving pit wood and steel, reducing support costs, small excavation section, small deformation of the roadway, low maintenance costs, safety, portability, can reduce physical labor, reduce ventilation resistance, is conducive to the construction of a lane and speed up the excavation speed, wide range of use,strong adaptability, reduce the amount of transportation, is conducive to the transportation and upgrading of the mine. However, the bolt can not prevent the weathering of surrounding rock, can not completely prevent the fracture rock spalling between the bolt and the bolt, therefore, the bolt combined with other supporting measures, such as metal mesh, will achieve better supporting effect.
Expansion Shell Roof Bolts
Expansion shell roof bolts are a type of fastener commonly used in construction and mining to secure heavy loads to concrete or other solid surfaces. These bolts consist of a threaded metal rod with a flared cone-shaped end that is inserted into a pre-drilled hole in the surface. When a nut is tightened onto the threaded end of the bolt, the cone-shaped end expands, pressing against the sides of the hole and providing a secure anchor point.
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Underground Mining Roof Support Expansion Shell
As the professional manufacture, we would like to provide you Underground Mining Roof Support Expansion Shell. And we will offer you the best after-sale service and timely delivery. Underground Mining Roof Support Expansion Shell is designed to be used for roof and ribs support in mine working areas as an independent or auxiliary roof support system. Expansion shell bolts are easy to handle, while they are implemented fast. In the case of expanding anchors the anchor foot is braced against the borehole wall with wedge-shaped spreading elements.
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Underground Mining Expansion Shell Anchor
Underground Mining Expansion Shell Anchor, Anchor bolt, in tunneling and underground mining, steel rod inserted in a hole drilled into the roof or walls of a rock formation to provide support to the roof or sides of the cavity. Rock bolt reinforcement can be used in any excavation geometry, is simple and quick to apply, and is relatively inexpensive. The installation can befully mechanized.The length of the bolts and their spacing can be varied, depending on the reinforcement requirements.
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Underground Expansion Shell
The Underground expansion shell holds in any rock strata which is sufficiently competent to provide an adequate anchorage. They are designed to anchor in soft ground or hard rock. In good strata, the anchorage exceeds the ultimate strength of the steel bolt. All expansion shells require a competent strata in the anchor zone.
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Do you want buy Expansion Shell Anchor Bolt Made in China? Supreme Machinery is definitely your good choice. We are known as one of the most competitive Expansion Shell Anchor Bolt Manufacturers and Suppliers in China. Customers are satisfied with our products and excellent service. We sincerely look forward to becoming your reliable long-term business partner! Any inquiries and problems please feel free to send emails to us and we will reply you soon.
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