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Why Should We Use Self-drilling Rock Bolt to Support the Weak Rock When Excavating A Tunnel?

Time:2022-02-15From:This Site

During tunnel excavation, we often encounter weak rock. Due to the potential danger of this kind of rock, under normal circumstances, we will use self-drilling

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You Must Use Self-drilling Anchor Bolts in Easy-to-Collapse Conditions, Click here to Know Why

Time:2022-02-10From:This Site

Many construction companies will encounter geological conditions that are prone to collapsing holes during the construction of engineering projects. In such a s

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What Advantages Do Self Drilling Concrete Bolts Have Comparing to the Full Lenth Mortar Bolts?

Time:2022-02-08From:This Site

In many projects, loose geological conditions will be encountered during construction, such as pebble layer, sand layer, strongly weathered limestone, etc. Whet

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How Many types of rock bolts are there?

Time:2022-01-23From:This Site

At present, there are many types of rock bolts used for geotechnical anchoring engineering support in China, including ordinary hollow anchors, self-drilling an

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Do You Know What the Self-drilling Ahchor Bolt System Is? Let's figour it out together

Time:2022-01-12From:This Site

The self-drilling anchor bolt system is a new technology developed in recent years, suitable for broken rock, loose soil and geological conditions where are dif

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Self Drilling Hollow Bar：A Perfect Solution to Hole Collapsing When Supporting Loose & Broken Geology

Time:2022-01-06From:This Site

In some construction projects, the geological conditions are not very suitable for drilling construction. However, if you want to reinforce the foundations of t

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How Does Self Drilling Anchor Bolt Work in the Complex Unstable Conditions ?

Time:2021-12-28From:This Site

In projects that use self-drilling hollow anchor rods, it is inevitable that the cover layer is soft and broken, and the rock layer is hard. Under such geological conditions, the construction of self-drilling hollow bolts is definitely not the same. So, how is the construction done?

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3 reasons why reasonable grouting is necessary for anchoring project

Time:2021-12-28From:This Site

We all know that during the construction of anchor rods and anchor cables, grouting must be carried out into the borehole. Reasonable grouting of the anchoring project is a key factor related to the quality of the project. This is mainly due to the following three reasons:

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Self-drilling hollow Anchor Rods Common Application scenarios

Time:2021-12-24From:This Site

Self-drilling hollow anchor rods have excellent anchoring effects when used in geological conditions that are easy to collapse. Therefore, the application of self-drilling hollow anchor rods is becoming more and more extensive.

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How to choose the best hollow anchor bar for corrosion protection?

Time:2021-12-11From:This Site

In engineering applications, the biggest influence on the service life of self drilling hollow anchor bolts is stratum environment. Especially when it is used in sea area or close to the coastline, where the environment is more aggressive. Therefore, you should select hollow anchor rods for corrosion protection in aggressive environments.

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Inefficient supporting effect in the tunnel by small pipe? Self-drilling anchor bolts (SDA) solve problems at once

Time:2021-11-19From:This Site

Due to the high hardness of the conglomerate layer, the small pipe cannot be penetrated, resulting in an unsatisfactory grouting effect and continuous water leakage in many places in the tunnel. In order to ensure normal construction, after many tests, the self-drilling hollow grouting anchor rod was finally selected for support.

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Advantages of self drilling hollow anchor bolts used as soil nails

Time:2021-11-10From:This Site

Soil nailing is currently an important technology for reinforce slopes such as mountains, dams and building foundations. However, the traditional technology is to drill holes first, and then anchor bars are embedded in the holes and grouted and fixed. The construction process not only faces problems of high construction difficulty, low work efficiency, and high cost, but also faces the problem of poor connection stability between soil nails and geological structures. In recent years, self drilling hollow anchor bolts have been widely used in soil nail support due to their simple construction t

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Five advantages of using self drilling anchor bolts

Time:2021-10-26From:This Site

The use of common hollow anchor bolts, rebar and casing construction and other supporting methods are widely used, but in recent years, self drilling anchor bolts have become more and more favored by construction parties. What is the reason? Today I will give you a brief introduction to the advantages of self drilling anchor bolts.

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5 common quality problems in construction of self-drilling hollow bolt (SDA system)

Time:2021-10-10From:This Site

As a very effective support method, self-drilling hollow anchors have been widely used in rock and soil anchor support system in recent years. Self-drilling hollow anchors not only maintains the stability of soil and rock mass during construction, but also plays an important role as a part of permanent support structure after construction, so it is very important to ensure the construction quality of self-drilling hollow bolt.

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How to support high slopes with self drilling anchor bolts?

Time:2021-09-26From:This Site

Self drilling anchor bolts can effectively solve the problems of difficult drilling caused by complex geological conditions on high slopes, which can ensure project progress and reach the ideal state.

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Self-drilling hollow anchor rods in the treatment of disastrous slope

Time:2021-09-18From:This Site

There are various forms of slope protection technology. In recent years, self-drilling hollow anchor rods have been widely used in various protection and reinforcement projects. Sinorock self-drilling hollow bolts are widely used in slope support, tunnel advance support, foundation pit support, foundation construction support, etc. Sinorock is a high-tech enterprise specializing in the research and development, production and sales of geotechnical anchorage engineering materials.

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Self drilling anchor bolts--An ideal solution for weak soil

Time:2021-08-25From:This Site

In the field of geotechnical engineering, there are complex geological conditions such as weak rock and soil layers, fault fracture zones, and easily collapse geology, which bring great difficulties to engineering construction. Self drilling anchor bolt integrates the functions of drilling, grouting and anchoring together. The construction process of simultaneously drilling and grouting is the best solution for loose and weak formations.

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Self-drilling Bolts Applying in Underground Car Park Foundation Projects

Time:2021-08-12From:This Site

For engineering needs, self-drilling bolts are born under such circumstances. Now let us see a real case to introduce the application of self-drilling bolts applying in underground parking lot projects.

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Self-drilling hollow bolts common application scenarios

Time:2021-07-26From:This Site

Sinorock is a high-tech enterprise specializing in the R & D, manufacturing, and sales of self-drilling hollow anchors and related equipment. SINROCK has served more than 50 countries on six continents over the past 19 years, Sinorock self-drilling anchor has been widely used in railway engineering, Highway Engineering, Water Conservancy, and hydropower, Subway, coal mine tunnel, slope support, and so on.

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Self Drilling Hollow Anchor Bolt Application in Yuxi-Mohan Railway Tunnel

Time:2021-07-12From:This Site

Self drilling anchor bolt can simplify the drilling, grouting and anchoring procedures. The full length of the bolt is fully anchored, and it can provide a certain supporting resistance immediately after excavation, effectively suppressing the loosening and deformation of the surrounding rock, and avoid or slow down the occurrence of disease accidents during construction and use of the project. The use of self drilling anchor bolt and drill bits can ensure grouting layer is at least 20mm, which fully guarantees the durability of the bolts, and is especially suitable for supporting and strength

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4 Advantages of Self-drilling Hollow Grouting Anchors compare with common Grouted Bolts

Time:2021-06-25From:This Site

Sinorock Self-drilling Hollow Grouting Anchors have the characteristics of fast construction speed, large anchoring force, good anti-corrosion performance, simple operation, and timely provision of anchoring force.

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Application case analysis of SINOROCK self-drilling anchor--Huangshan Pedestrian Mall foundation support

Time:2021-06-22From:This Site

The use of self-drilling anchor bolts not only overcomes the difficulty of drilling holes in the round gravel layer, but also gives full play to the advantages of it, improves construction efficiency, and reduces comprehensive construction costs.

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Common quality problems in rock bolts construction

Time:2021-05-25From:This Site

In the current tunnel support systems, as a very effective support method, rock bolt has been widely used in recent years. Rock bolt can not only stabilize the surrounding rock in the construction process, but also play a role as a part of the permanent support structure after the construction, so it is very important to ensure the construction quality of rock bolt.

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Application of hollow bar and solid bar in different formations

Time:2021-04-27From:This Site

Although self-drilling rock bolt has obvious advantages in loose or collapsed formations, it cannot provide an effective drilling effect in wet clay or tight formations, where the solid bar is more effective.

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