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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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3 Advantages of Self-drilling Pipe Roofing VS Traditional Pipe Roofing

Time:2021-04-14From:This Site

Traditional pipe roofs generally are seamless steel pipes, and common specifications are Φ76×6, Φ89×5, Φ108×6, Φ127×6, etc. Self-drilling pipe roof system consists hollow anchor bar, coupling sleeve and drill bit, which can be drilled and grouted at one time. Self-drilling pipe roof system can be replaced traditional pipe roofs in a variety of easily collapsed formations, and common specifications are R51, T76, T103, etc.

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Self-drilling anchor system product introduction – hollow anchor bar

Time:2021-03-26From:This Site

Self drilling anchor system integrates drilling, grouting, and anchoring. It is an efficient construction technology and is widely used in complex geological conditions such as weak surrounding rock, fault fracture zone, high ground stress, and large deformation.

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Self-drilling anchor system product introduction-coupler

Time:2021-03-12From:This Site

Self-drilling anchor system is an efficient construction technology that integrates drilling, grouting, and anchoring. It’s widely used in complex geological conditions such as weak surrounding rock, fault fracture zone, high ground stress, and large deformation.

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Reinforcement mechanism of self-drilling hollow anchors

Time:2021-02-22From:This Site

The reinforcement mechanism is as follows: Self drilling anchor bolt is mainly composed of hollow anchor bar, drill bit, plate, nut and coupling. Hollow bar's surface has continuous wave thread with international standard, which can be directly connected with the output end of drill rig to complete drilling.

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Self-Drilling Anchor Bolt Construction in Complex Geological Slope

Time:2021-02-08From:This Site

During construction, Self-drilling hollow anchor bolt integrates drilling, grouting and anchoring functions, which significantly improves drilling efficiency. And under the action of pressure pump, the grouting in the rock strata and voids is full, which ensures the grouting thickness and anchoring effect.

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Application of Self-Drilling Anchor bolt in Slope Support of Hydropower Station

Time:2021-01-25From:This Site

Self-drilling anchor bolt has the characteristics of fast installation speed, high grouting efficiency and good grouting effect. It can effectively solve the problem that ordinary anchor bolt is difficult to drill holes, and ensure the high slope smoothly construction and the project safety operation.

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Characteristics and processing method of self-drilling hollow anchor bar thread

Time:2021-01-15From:This Site

Self-drilling anchor system is an advanced anchorage system, which can directly perform drilling and grouting functions in loose soil and broken rocks.

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Leading manufacturer of self-drilling anchor system | Sinorock

Time:2020-12-28From:This Site

Sinorock is the world's leading manufacturer of self-drilling anchor system with more than ten years of history.

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A leading manufacture of self drilling rock bolt - Sinorock

Time:2020-12-24From:This Site

Sinorock self-drilling rock bolt is an incredibly versatile product known for its low density, outstanding corrosion resistance, and high efficiency.

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Advantages of self-drilling anchor bolt in slope treatment of hazardous geology

Time:2020-12-21From:This Site

Self-drilling hollow anchor bolt support can satisfy the designed anchoring force and has been widely used in various protection and reinforcement projects.

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Application of hollow grouting anchor bolt in tunnel pre-support engineering

Time:2020-11-28From:This Site

Hollow grouting anchor bolt pre-support technology is a construction technology for auxiliary tunnel excavation under unfavorable geological conditions.

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Corrosion mechanism and protection method of rock bolt

Time:2020-11-25From:This Site

Commonly isolation methods of rock bolt including grouting wrapping, epoxy coating or (and) galvanized, casing isolation, etc.

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Self-drilling anchor bolt used for soft geological slope support

Time:2020-10-29From:This Site

As a new anchoring technology, self drilling anchor bolt can adapt to various complicated geological conditions and environments, especially in soft soil.

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