What Is the Difference Between Casing Drilling And Self-Drilling Anchor Bolt
Time:2022-12-10From:sinorock View:
During the construction of support projects, in the face of loose geology, the traditional support method is casing to drill into holes. As a new drilling technique, the self-drilling anchor bolt can be a good substitute for casing drilling, and the overall cost is lower. This blog will introduce the differences between casing drilling and self-drilling anchor bolt.
Casing Drilling Technology
There are many methods of casing drilling, which need to be comprehensively selected according to the type of drill rig, construction requirements, and formation conditions. Under normal circumstances, the casing is pressed while drilling, or the casing is pressed in ahead of time, and then the drilling tool follows. It is mainly divided into two methods: eccentric overburden casing drilling and symmetric overburden casing drilling, which are different in process principle. Casing drilling can prevent the hole wall from collapsing or the quicksand from filling the borehole during the drilling process, but the construction process is more complicated, and it is suitable for drilling loose strata and quicksand layers.
Construction Technology of Self-Drilling Anchor bolt
Self-drilling anchor bolts need to be inspected for the drill bit, hollow bar, and drill rig before starting construction. The hollow bar body is connected to the drill rig and grouting machine through a rotary grouting adapter. During construction, drilling rigs and grouting can be carried out at the same time. After grouting, install the plate and nuts to ensure the anchoring effect. Self-drilling anchor bolts are mainly suitable for difficult-to-form surrounding rock, stratum fragmentation, etc., and can enter a narrow space for construction to shorten the construction period.
The Difference Between Casing Drilling & Self-Drilling Anchor Bolts
1. The hollow anchor bar of the self-drilling anchor bolt can be cut arbitrarily and can also be lengthened by couplers. It can be constructed in a narrow space where large equipment cannot enter, and the construction is more convenient.
2. The casing pipe is omitted in the self-drilling anchor bolt construction process, which greatly improves the construction efficiency, shortens the construction period, and reduces the overall construction cost
3. The casing drilling grouting needs to put the anchor bars first and then connect them to the grouting machine. The self-drilling hollow bar can be connected to the grouting machine and the drilling rig through the rotary grouting adapter to realize the function of grouting while drilling.
The above is an introduction to the differences between casing drilling and self-drilling anchor bolt. From the construction techniques of the two, it can be seen that self-drilling anchor bolts can be grouted while drilling. For projects that require bolt grouting support, self-drilling anchor bolts are more convenient and efficient. Sinorock self-drilling anchor bolts can be used in construction engineering such as slope support, foundation support, tunnel pipe roofing, etc. Welcome contact at sinorock@sinorockco.com
latest news
-
- Why is it important to choose a high quality nut for self-drilling anchor system?
- Time:2023-05-31From:This Site
- Self-drilling anchor systems are a technology specifically designed to support soil and consolidate rock formations and are often used in a wide range of projects. The quality of the nut, which is an important component of the geotechnical anchor, can directly affect the safety, durability and stability of the entire anchor system. Therefore, when selecting a self-drilling anchor system, it is important to select a nut of the highest possible quality.
- View details
-
- Why couplers are needed in self-drilling anchoring systems
- Time:2023-05-26From:This Site
- The self-drilling anchor system is a complete anchor system that is commonly used in modern construction projects for anchor drilling and control, which is anchored by its own drilling capacity. And in this system, the coupler is one of the key components.
- View details
-
- How to find a trustworthy self-drilling anchor manufacturer in China
- Time:2023-05-17From:This Site
- Self-drilling hollow anchor bolts have many advantages over traditional rock anchor bolts in the construction process and performance. They are particularly well-known for being made in China. How can we locate a reliable manufacturer of self-drilling anchor bolts in China when there are so many products available?
- View details
-
- Quality Control, the Vital Factor of A SDA Bolt Factory
- Time:2022-07-22From:This Site
- The self-drilling rock bolts are applied to support the tunnels, reinforce the foundations, and stabilize the slopes that are in bad conditions. The constructio
- View details
-
- Spring Day Celebrations
- Time:2021-04-30From:This Site
- In this spring season, do everything that makes us happy. In any case, we should enjoy life.
- View details
-
- A Meaningful Christmas Day - Decorating Christmas Tree with Colleagues
- Time:2020-12-25From:This Site
- The Christmas party is a staple of office life-a way for teammates to socialize in a non-work setting. We had a pleasant and meaningful day. We decorated the Christmas tree together.
- View details
-
- Big News! SINOROCK Will Attend CTT EXPO 2023 in Moscow
- Time:2023-04-28From:This Site
- CTT EXPO is the largest international construction machinery exhibition in Russia, Central Asia and Eastern Europe. It’s the leading trade fair for construction equipment and technologies, special machines, spare parts, and innovations in Russia, CIS and Eastern Europe. More than 20years history of the event confirms the status of the main communication platform for construction industry players.
- View details
-
- SINOROCK Will Attend Mining World Russia 2023 in Moscow
- Time:2023-03-27From:This Site
- As Russia’s leading mining & mineral extraction machinery, equipment and technology event, the exhibition connects equipment and technology manufacturers with buyers from mining companies, mineral processors, and wholesalers interested in buying the latest mining solutions.
- View details
-
- SINOROCK Will Attend CONEXPO-CON/AGG 2023
- Time:2023-02-14From:This Site
- CONEXPO-CON/AGG 2023 will be held during 3/14-3/18 2023. Sinorock will attend with our proud products self-drilling achor bolt system and other anchoring products. Welcome to visit!
- View details