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Efficient supporting methods - Self drilling rock anchor system from Sinorock

Le 9 mars 2017, 10:49 dans Humeurs 0

Self drilling rock bolt support has many advantages, such as instant bearing, large pretension force, good support effect, low labor strength and low cost, etc.Nowadays, self drilling rock bolt technology has become an effective way to realize high efficiency and production. 

Self drilling rock anchor system, one of efficient supporting methods, has played important role in reinforcing and supporting engineering. As for underground engineering, such as metro station and foundation pit supporting, self drilling anchor system can bond itself to soil and ground, which can enhance integrity and cohesiveness, avoid deformation and collapse. 

Self drilling anchor of Sinorock is a kind of prestressed anchor, which combines drilling, grouting and anchoring together.Self drilling anchor bolt in slope treatment were able to achieve the ideal effect in improving the surrounding rock, which nicely solves the problem of drilling difficult in anchoring construction, it is an economic, safe and highly effective geotechnical reinforcement technology and now is widely used in tunneling, mining and slope works.The self drilling anchor bolt system are used widely to improve the stability and load bearing characteristics of a rock mass. 

Often they are used to stabilize relatively small blocks of rocks in cuttings, slopes and underground excavations such as tunnels, caverns and mines. They can be used on their own or in conjunction with other support systems such as ground anchorages.


Function of SDA/IBO hollow bar: Reinforcing + Drilling + Injection

Le 17 janvier 2017, 04:13 dans Humeurs 0

Most people have seen a tunnel. It is frequently appeared in modern transportation like highway, railway.

Have you ever worried about the safety of tunnel?

The Korean movie “The Tunnel” may give you a nightmare concerning unreliable quality of civil construction.


(Tunnel was collapsing, and Jeong-woo Ha was buried underground.)

Why it happened?

Construction contractor jerry-built the tunnel. The usage of self-drilling anchor was not up to standard.

The modern method to design and construct a tunnel is NATM (New Austrian tunnelling method, also known as SEM).

Its basic principle is taking advantages of  the inherent geological strength available in the surrounding rock mass to stabilize the tunnel. And SDA (Self-drilling anchor, also known as IBO) plays a key role in NATM system.

Function of SDA/IBO hollow bar: Reinforcing + Drilling + Injection

Reliable self-drilling anchor helps to distribute the rock pressure around the tunnel until stabilized by the final concrete structure.

In case of the mountain rock layers move slightly,  SDA rock bolts with good ductility can absorb and transfer the destructive energy. Sinorock has posted a diagram to describe energy absorbing.

In the movie “The Tunnel”, Jeong-woo Ha was saved after burying 32 days.

But in reality, chance of survival from such disaster is very low.

As a manufacturer of self-drilling anchor, Sinorock hopes all producers supply qualified IBO prodcuts. Don’t ignore ductility performance, don’t let the nightmares come true!


Tunneling in iran use Sinorock self drilling bolts

Le 12 janvier 2017, 09:26 dans Humeurs 0

Tunnelling in Iran is a very challenging and interesting job because of special geological conditions and dimensions of new defined projects. In the past using of conventional method statement (like Drill and Blast) was very usual in Iran but because of many new tunnel projects within last 15 years that they should be finished in time frame of clients utilizing of mechanized systems like Tunnel Boring Machines is being rapidly developed.

In this working environment some specialists have grown and one of the best made a group of the most experienced engineers named Tunnel Design Team.

The engineers working under this umbrella have been involved in different design and construction of tunnel and underground spaces projects individually and also all of them have been working together.

As you will find in the website we have designed different self drilling bolts for tunnels like metro, water, sewerage, cable, etc. with professional and cost-effective solutions, from planning and design to project management and consulting, as well as providing inspections and claim reports.


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