Application of Hollow Anchor Bar in Crack Repair
Time:2016-06-15From:sinorock View:
With increasing traffic, energy and other infrastructure constructions, anchoring technology has developed rapidly, which can give full play rock self-stability in tunnels, basements and slope. It shows broad prospects with the use level of hollow anchor bar.Qingdao subway project (Line 3) Wannianquan Station, the underground section of the surrounding rock is poor with many parietal callus, plentiful underground water. And due to the construction blasting vibration, the main construction of the tunnel has a longitudinal and horizontal cracks. Given all that, the grouting parameters of hollow anchor bar are as follows:
⑴ Hollow anchor bar system
Grouting material: cement slurry
Water cement ratio: 0.4 ~ 0.5
Grouting pressure: 0.2 ~ 0.5Mpa
⑵ Expansion hollow anchor bar system
Grouting material: grout
Water cement ratio: 0.4 ~ 0.5
Grouting pressure: 0.35 ~ 0.45Mpa
The amount of 4.0m hollow anchor bar used crack repair is 240 and 10.0m expansion hollow anchor bar is 160. From the actually monitoring data, we can find hollow anchor bar has a obvious grouting reinforcement and achieves the desired effect.
latest news
-
- What Is Rock Bolting in Construction?
- Time:2022-06-28From:This Site
- Rock bolting is a new technique to reinforce the unstable conditions in tunnels, slopes, mines, and foundations. It not only keeps the people and equipment safe
- View details
-
- 3 Methods to Solve Hole Collapsing During Rock Anchorage Construction
- Time:2022-06-23From:This Site
- In geotechnical anchoring construction, we often encounter geological conditions that are easy to collapse holes and difficult to form holes. Drilling in such g
- View details
-
- What Is the Difference Between Rock Bolt and Rock Anchor?
- Time:2022-06-20From:This Site
- A rock bolt is a kind of support framework that usually is used to stabilize slopes, and so is the rock anchor. They both work to reinforce the rock formations
- 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
-
- Happy China National Day, happy Mid-Autumn Festival
- Time:2020-10-01From:This Site
- Today is October 1st, the season of sweet osmanthus fragrance. It’s the annual National Day, the birthday of our great motherland. With the ups and downs, our motherland is 71 years old.
- 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