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.

Other supplier products

	Self drilling anchor of Sinorock provides a convenient and strong method for securely anchoring	We take pride in the fact that Sinorock are made on site here in our workshop in Luoyang,China. This allows us to oversee quality and standards at...
	Sinorock SDA bolt is an effective mean of anchoring	Whether you’re in need of helicalpiers or other foundation repair and waterproofing materials, we have you covered with the best products ava...
	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...
	Use Sinorock’s self drilling anchor System for the Stabilization of your construction	With the amount of new construction happening around the world ,and the use of will likely increase with the new， innovative designs.Self drilling...
	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...

Same products

	Wax injection	Seller: Yihui casting Technology Co., Ltd.	Wax injection This category mainly includes the MAXWAX brand wax injection machinesdeveloped and...
	Moulding tools	Seller: Yihui casting Technology Co., Ltd.	Moulding tools Casting supplies a complete range of jewellery moulding tools designed for profes...
	Moulding machines	Seller: Yihui casting Technology Co., Ltd.	Moulding machines YihuiCasting provides advanced mold making equipments for jewelry designed for...
	3D printer	Seller: Yihui casting Technology Co., Ltd.	3D printer YihuiCasting provides advanced 3d jewelry printers designed for modern jewelry produc...
	3D Design	Seller: Yihui casting Technology Co., Ltd.	3D Design This category includes all 3D printers and relevant spare parts like release films, re...