posted on 25 May 2017 11:20 by hollowbar
Self-drilling hollow anchor bolts within the extensive range of the Sinorock range of foundation and stability control products are moving beyond their traditional applications in underground construction and are being used also as micropiles. Vital to the protection of infrastructure above underground excavations, the expanded use of the SDA bolt provide efficient underpinning of the foundations of buildings and for stabilizing ground around excavations particularly in hard-to-reach sites with limited working space.
Sinorock hollow bar micropiles can be installed in every ground type and can withstand, reliably, both tension and compression loads of up to 2,750kN in tension and up to 1,910kN in compression. The hollow-bar design of the self-drilling hollow bar micropile system offers a single action for drilling and grouting. As an efficient method of stabilizing the subsoil, micropiling is becoming an ever more important method for preventing settlement of foundations for the long term.
Sinorock self drilling hollow anchor bar overcome these limitations and make the installation faster and more efficient with their one-step process. The bar is drilled into the ground and cement grout is injected through the hollow rod in one operation. During drilling, the grout stabilizes the borehole to prevent it collapsing. Once installed to the required length and after full hardening, the grout transfers the load from the bar into the surrounding soil. The simultaneous grouting ensures full and uniform coverage of grout along the full length of micropile. Extension couplings provides lengthening of the micropiles and the bearing capacity of the connection remains the same as of the bars.
posted on 22 Jan 2017 15:05 by hollowbar
Sinorock now manufactures and supplies a complete range of hollow bar products and technical services to the related industries,such as the civil and tunnelling industries.Sinorock’s manufacturing and supply capability includes:self drilling hollow bar,Duplex coating hollow bar
system,Stainless self drilling hollow bar system,ect.These products are available in different range. Widely used in soil erosion, slope engineering, mining,
construction, tunnel, large cave supporting and restoration of engineering structure.
The necessity for self drilling hollow bars is increasing in today’s world. They are used in everything that you can imagine.The amount of self drilling hollow bars that is in use each day is a gigantic number and the thought of one company manufacturing all of these self drilling ground anchors is an impossibility. Not only do multiple self drilling hollow bar manufacturers take on the responsibility of supplying many different contractors and construction workers with self drilling hollow anchor bars every day but they also do custom fabrication as well.
All Sinorock self drilling hollow bar systems are equipped with state-of-the-art Taralog computers which provide readings of drilling and concreting parameters.Sinorock self drilling hollow anchor bar systems are built and designed in compliance with the standard ISO, and as a result, we offer superior in-house expertise in self drilling hollow anchor bar testing (both static and dynamic). This is carried out in the earliest possible stages of the project to enable the client and Sinorock designers to adjust and refine self drilling hollow anchor bar construction pro-actively, rather than re-actively, later in the project.
edit @ 22 Jan 2017 15:07:01 by hollow bar
posted on 19 Jan 2017 15:33 by hollowbar
Sinorock - We procure our quality hollow-bar pile products directly from reputed
manufacturers. Our methods are highly cost effective and they guarantee product quality and
affordable rates. Our highly dedicated and experienced professionals deliver quality
products which are utilized in various applications in geotechnical anchorage
industries.Under the guidance and leadership of our leader. our company has acquired notable
position as one of the top-notch hollow-bar pile exporters from China.
As an efficient placing approach,self-drilling hollow bar palys a significant role in supporting rock mass to prevent deformation and excavation,buildings,roadway,bridges,large equipment are all established on the rock, so the stabilization of rock layer will be extremely important.
Besides,as an practical and reliable placing solution，Sinorock has been extensively applied in the mining,tunneling,foundation support,hydroelectric project and roadway support project and so on,with so many years of exploration and development,the techniques of the installation of self drilling hollow bar has became skillful and been trusted by our customers around the world.