Five advantages of using self drilling anchor bolts
Time:2021-10-26From:sinorock View:
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.
1. Strong applicability: hollow anchor bar can be connected with a variety of drill bits for drilling. The drill bits include EX drill bits, EXX drill bits, ESF drill bits, ESSF drill bits, clay drill bits, etc. Different types of drill bits can be selected for different geological conditions, and hollow anchor bar with different diameters can be matched with drill bits of different specifications.
2. High construction efficiency: construction process of common hollow bolts is: drill the hole-withdraw the drill pipe-insert the bolt-connect the grouting machine and grout, while the self drilling anchor bolts realize drilling and grouting integration with anchoring function greatly improves construction efficiency. According to project statistics, the drilling efficiency of latter can achieve a shift of 130-250m, depending on different geological conditions.
3. Simple structure: It is composed of hollow anchor bar, drill bit, coupler, nut and centralizer. The structure is relatively simple but construction when connected with a drilling rig and a grouting machine. In addition to installing, connecting the long self drilling bolt and operating the grouting machine, the number of personnel required for the construction is less, which saves labor costs.
4. Uniform grouting thickness and good anchoring effect: the centralizer is to ensure the anchor bar is always at the center of the hole during drilli, and the cement grout thickness around the rod keeps at least 20mm. If the anchor rod is not centered, the grout thickness along the anchor rod will be biased, resulting in uneven force of the anchor body, which will affect the anchoring effect.
5. Low requirements for construction conditions: It has drilling anchor bolts have realized the integration of drilling, grouting and anchoring functions, and can be constructed normally on various working platforms, especially in relatively narrow tunnels, underground, etc. In the space, self drilling anchor bolts can still be constructed normally, which is impossible for ordinary anchors.

Through the above introduction, I hope everyone has a fuller understanding of the advantages of self drilling anchor bolts. If you encounter problems during construction, please contact Sinorock, our technical team will provide you with customized system solutions to help you solve problems.
latest news
-
- 5 Things About Rock Bolt You Need to Know
- Time:2022-08-22From:This Site
- Rock bolt, also being called rock anchors, is a support system to reinforce loose, broken, and other unstable soil and rock formations. It can provide a reliabl
- View details
-
- Advantages of Self-Drilling Rock Bolts in the Treatment of Disastrous Geological Slopes
- Time:2022-08-16From:This Site
- With the development of global engineering construction, there are more and more projects such as highways, railways, mines, and water conservancy projects. A l
- View details
-
- Application of Self-drilling Rock Bolt in Loose Soil Foundation Support
- Time:2022-08-08From:This Site
- The self-drilling rock bolt realizes the integration of three functions of drilling, grouting, and anchoring, and can be constructed safely and efficiently unde
- 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
-
- Sinorock Will Attend 2022 Bauma CTT Russia Expo Trade Fair in Mosco
- Time:2022-05-12From:This Site
- Sinorock will attend the 22nd Bauma CTT Russia Expo on May 24-27, 2022. Check the detail information below: Booth Number: Exhibition Hall 13, 528Address: Crucos
- View details
-
- Great News: Sinorock Will Attend DFI 46th Annual Conference on Deep Foundations Online!
- Time:2021-09-30From:This Site
- DFI used to hold the annual conference on deep foundations offline. However, due to the global spread of COVID-19 and ongoing travel and group gathering restrictions, additionally, DFI will hold the conference online from Oct 12th to Oct 15th this year. Sinorock will be there on time.
- View details
-
- Sinorock® is attending DFI Virtual SuperPile 2020 Event
- Time:2020-06-05From:This Site
- Sinorock® is continually supporting DFI as a sponsor, and always following closely as a member. Sinorock wishes the virtual SuperPile event a great success!
- View details