Self drilling bolt in surrounding rock of tunnels
Large quantity of engineering construction shows that broken rock mainly takes place in surrounding rock of tunnels, with the characters
of deformation and abruptness, it’s hard to deal with the problems exist in tunnel support of hard tunnel only by ,
especially in the hard tunnel at jointed fractured zone.
is one of supporting methods for projects and it is widely accepted in the world at the present stage. Its
supporting quality has direct relation to the stability of projects.
So after long-time construction experience, following requirements is necessary for self drilling anchor bolt.
1. Self drilling anchor bolt’s length, separation distance, array pitch, insertion direction and arrangement mode should accord with
construction demand.
2. Drill hole site should be confirmed and then adjust direction.
3. After drilling, self drilling anchor bolt should be installed in time according to its design and installation instruction.
4. Hole site, hole depth, hole diameter and accessories should be checked to reach specification.
5. The exposed length of self drilling anchor bolt should meet design requirement.
6. The direction of installation should be vertical with plate. Surface contact between plate and surrounding rocks should be tight and
avoid adding extra load on it.
7. Self drilling anchor bolt should not be bent during installation.
8. Inspection work of self drilling anchor bolt’s construction quality should be done.
在线联系供应商
Other supplier products
 |
Sinorock injection anchors are a cost effective way to build a safe, lasting structure | The aim of ground support is to provide safe working conditions during the temporary construction activities and to give a sufficient long-term sta... |
|
|
Catering to the self drilling injection anchor market,Sinorock gained expertise and a positive reputation in the market | Sinorock has built a reputation for total customer commitment while recognizing the requirement to provide quality products, prompt delivery and co... |
|
|
Self drilling anchor bolt of | The importance of is pretty obvious. Without SDA bolts, most construction professionals and builders would find it real difficult to attach certai... |
|
|
self drilling injection anchor is a basic component of coal mine tunnel support | In recent years, as the demand of the engineering projects supporting operations and development, became the main material requirements.With the co... |
|
|
For temporary works and foundations with Sinorock self drilling anchors | The ability of Sinorock to provide effective solutions without the need for additional casing operations enables designers, developers and contrac... |
Same products
 |
共轨喷油器 | 卖方: 德艾普(厦门)进出口有限公司 | 商品名称：柴油喷油器型号： 最小起订量：1 件 材质：钢 包装详情：纸箱包装 库存：有库存 品牌：CNDIP 质保：6个月 |
 |
共轨喷油器 | 卖方: 德艾普(厦门)进出口有限公司 | 商品名称：柴油喷油器型号： 最小起订量：1 件 材质：钢 包装详情：纸箱包装 库存：有库存 品牌：CNDIP 质保：6个月 |
 |
共轨喷油器 | 卖方: 德艾普(厦门)进出口有限公司 | 项目：柴油喷油器型号： 最小起订量：1 件 材质：钢 包装详情：纸箱包装 库存：有库存 品牌：CNDIP 质保：6个月 |
 |
共轨喷油器 | 卖方: 德艾普(厦门)进出口有限公司 | 项目：柴油喷油器型号： 最小起订量：1 件 材质：钢 包装详情：纸箱包装 库存：有库存 品牌：CNDIP 质保：6个月 |
 |
共轨喷油器 | 卖方: 德艾普(厦门)进出口有限公司 | 项目：柴油喷油器型号： 最小起订量：1 件 材质：钢 包装详情：纸箱包装 库存：有库存 品牌：CNDIP 质保：6个月 |
