Industry News

June 14 2017 0comment
self drilling hollow anchor bar

Sinorock hollow bar micropiles can ensure the quality of projects

Hollow bar micropiles are becoming a popular option for foundation retrofitting because of their fast installation and effectiveness as both a foundation system and ground improvement at the same time. Self drilling hollow grouting bolt is made up of drill bit,hollow rod body,anchor plate and anchor nut.It is mainly used for the supporting engineering in […]

June 02 2017 0comment
hollow bar support for mining

Improvement measures of hollow anchor bar’s support

Self drilling hollow bar support is an active form of support, the support has the advantages such as low cost, fast supporting speed, low labor intensity, especially greatly simplifies the mining working face end support and advanced support technology, provides security for the rapid development of coal mining face. It is an important supporting technology […]

May 13 2017 0comment
hollow bar system

The hollow bar system of Sinorock is efficient and economical as a reinforcement tool

The hollow bar technique have been used in the United States as a self-grouting soil nails which replaces the traditional drill and grout method. The drilling, installation and grouting of nailing in this method is combined into one single step. This method proves to be advantageous for caving ground conditions and was initially employed for […]

April 27 2017 0comment
hollow bar micropiles

Quality control of micropile components is usually very simple and reliable

Quality control of micropile components is usually very simple and reliable. The reinforcement materials can be obtained with quality certification from most providers. The grout, if prepared consistently using colloidal mixers to the right proportions as verified by Baroid Mud Balance tests, will almost always yield the desired strength. However, there may be questions regarding […]

April 14 2017 0comment
injection hollow bar

The features and quality control measures of injection hollow bar

Self drilling hollow bar is hollow structure, so it can be used as drill bar and mortar conveying pipe. Slurry jets from bit through anchor bar, permeates the surrounding of anchor bar under pressure and then fills the cracks of broken rocks. It can consolidate surrounding rocks and strengthen anchoring effect. Quality Control Measures of […]

March 23 2017 0comment
hollow bar micropiles

Quality Requirements of Seamless Steel Tube

Hollow bar micropiles are made of seamless steel tube. Basing on different working conditions and purposes, it has different requirements on seamless steel tube’s shape, size, chemical component, mechanical property, processing property and other quality indexes and technical conditions. There are several aspects’ requirements about products’ quality: 1. Chemical component of steel. Chemical component of […]

March 07 2017 0comment
construction of soil nail wall

Hollow bar system – Efficient and economical solution to enhance reinforcement for construction

There are so many companies developing and selling self drilling hollow bar nowadays,Sinorock tries to be the most professional injection hollow bar manufacturer by means of continuously researches and develops new technologies in the fierce competition. We concentrate our efforts on the special steels and self drilling hollow bar system markets and has become a […]

March 01 2017 0comment
drill hollow bar anchor

Drill hollow bar anchor is a good geotechnical anchorage solution

Drill hollow bar anchor is a good geotechnical anchorage solution.The hollow grouting anchor is widely applied to pre-support project, radial support project, slope stabilization, foundation support project, roadway support project, soil nail wall, back pull anchor rod retaining wall and other rock supporting work. The Hollow bar anchor supporting structure must have a good ductility,in […]

February 21 2017 0comment
hollow bar

The influnce effect of hollow anchor bolt in foundation supporting

Foundation supporting accident is mainly caused by improper design and construction, so it has important practical significance in the research on the influence factors of hollow anchor bolt foundation supporting in current engineering anchorage technology . Research shows that: First,using the self drilling hollow anchor bolt for foundation supporting, the angle of SDA bolt should […]

January 23 2017 0comment
hollow thread rod

Hollow Thread Rod in Loose Surrounding Rock Tunnel

During tunnel construction, hollow and loose nubby accumulation body is appeared at portal section frequently. When rock’s stability is poor and partial collapse is easy to be happened, pipe shed method needs to be adopted to provide advance support. Basing on rock’s bad stability, drilling machine can’t form hole. If steel tube with eyelet as […]

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